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4 sections 7 min read

Finding reliable replacement parts and accessories for the Echo 310 Chainsaw presents common challenges for homeowners and landscapers who rely on this 30.5cc gas-powered tool for pruning, limbing, and light felling. Users often encounter hard-starting engines, clogged filters, worn chains, or failed carburetors after seasons of use, leading to downtime and the risk of buying incompatible aftermarket components that fail prematurely. Selecting the right items requires matching exact OEM numbers such as A021001700 for carburetors or A226000460 for air filters while balancing cost against durability under regular outdoor conditions.

When evaluating the best echo 310 chainsaw options in August 2026, prioritize precise model compatibility with the Echo CS-310, verified replacement part numbers, ease of installation, and included maintenance extras such as spark plugs or primer bulbs. Critical factors include OEM-equivalent build quality for reliable fuel delivery and cutting performance plus value within the $8.28 – $298.99 spectrum across 15 thoroughly compared items. For deeper category insights, explore our complete range of chainsaws and related equipment to understand broader tool maintenance needs.

1
Best Seller

ECHO CS-3410-16 30.5 cc 16 in. Gas Chainsaw

ECHO
9.7 /10
CSMSM Score
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Updated: Jul 24, 2026
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Pros & Cons

Pros

  • 16-inch bar size is well suited to general-purpose residential cutting tasks.
  • 30.5 cc engine is a useful fit for light to moderate work.
  • Compact format should be easier to handle than larger chainsaws for many users.

Cons

  • The provided data does not list detailed features such as anti-vibration, chain brake type, or starting system.
  • A 16-inch bar is not ideal for larger tree felling or heavy-duty commercial cutting.
  • Gas chainsaws require ongoing engine maintenance compared with simpler low-maintenance tools.
Detailed Review

Overview: The ECHO CS-3410-16 is a gas chainsaw with a 30.5 cc engine and a 16-inch bar and chain. Based on the available specifications, it is positioned as a compact, practical option for homeowners and property owners who need a manageable saw for routine cutting tasks.

Performance: The 16-inch bar size makes this model suitable for pruning, limbing, and cutting smaller logs, while the 30.5 cc engine offers enough power for everyday yard work. Its smaller profile should also make it easier to control in tighter spaces than larger saws.

Considerations: The raw product data does not provide details on weight, anti-vibration features, starting assistance, or other comfort and safety specifications. Buyers looking for a larger cutting capacity or more advanced feature set may want to compare alternatives before deciding.

Verdict: The CS-3410-16 makes the most sense for users who want a straightforward, residential chainsaw from ECHO with a balanced bar length and a compact engine size. It is best suited to light to moderate cutting jobs rather than demanding, heavy-duty work.

2
Editor's Pick

ECHO Commercial Gas Rear Handle Chain Saw 16-Inch 34.4cc

ECHO
9.8 /10
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Updated: Jul 24, 2026
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Pros & Cons

Pros

  • Commercial-grade 34.4cc gas engine for serious cutting performance.
  • Reduced starting effort thanks to the i-30 starter system.
  • Vibration control system improves comfort during longer jobs.

Cons

  • Gas-powered design requires fuel mixing, refueling, and routine engine maintenance.
  • Rear-handle layout is less convenient for overhead or specialized one-handed cutting tasks.
  • 16-inch bar and 34.4cc engine may be less suitable for very large-diameter or heavy forestry work.
Detailed Review

Overview & Design: The ECHO Commercial Gas Rear Handle Chain Saw with 16In Bar and 34.4Cc is a gas-powered chainsaw aimed at users who want a compact, work-ready tool for regular cutting tasks. Its lower-weight design is a meaningful advantage for users who spend long periods on the saw.

Performance & Key Features: The 34.4cc commercial-grade engine provides the type of power expected from a professional-focused chainsaw, while the i-30 starter is designed to reduce starting effort by 30%. The 3-point spring vibration reduction system and air injection air cleaner add comfort and help support easier maintenance over time.

Drawbacks & Considerations: As a gas saw, it is not as simple as a battery model when it comes to fueling and upkeep. The rear-handle design is best suited to standard cutting positions, and the 16-inch bar may be limiting for users who regularly tackle much larger wood.

Verdict: This ECHO chainsaw is a strong fit for contractors, property owners, and professionals who want a lighter commercial-grade gas saw with easier starting and comfort-focused features. It is best for users who value dependable cutting performance and are comfortable with gas-tool maintenance.

3
Limited Time

MOTOALL A021001700 Carburetor for Echo CS-310 WT-946 Chainsaw Replacement

MOTOALL
9.4 /10
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Updated: Jul 24, 2026
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Pros & Cons

Pros

  • Covers several Echo CS-310 serial ranges for broader compatibility.
  • Purpose-built for a specific chainsaw platform, which can simplify parts matching.
  • Lower-cost repair part compared with replacing an entire chainsaw.

Cons

  • Compatibility is limited to listed Echo CS-310 serial ranges, so buyers must verify their exact model number.
  • No performance claims, tuning data, or installation accessories are provided in the product data.
  • As a replacement carburetor, it may still require correct adjustment after installation.
Detailed Review

Overview: The MOTOALL A021001700 is a replacement carburetor made for compatible Echo CS-310 chainsaws. It is aimed at users who need a parts-level repair solution for a worn or malfunctioning fuel system component.

Performance & Features: The main strength of this part is its specific fitment across multiple Echo CS-310 serial ranges, including 30.5cc easy-starting versions. For the right saw, that makes it a practical option for restoring fuel metering and getting the engine running properly again.

Drawbacks & Considerations: The listing does not provide detailed installation instructions, tuning specifications, or included accessories. Buyers should verify their exact serial range carefully, since compatibility is limited to the CS-310 variants shown in the product data.

Verdict: This is best suited for Echo CS-310 owners who need a replacement carburetor and want a focused, model-specific part. If your saw matches the listed ranges, it offers a straightforward maintenance fix at a sensible value.

4
Top Rated

Echo CS-3410 Rear-Handle Chainsaw, 14-Inch Chain, 34.4 CC

Generic
9.9 /10
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Updated: Jul 24, 2026
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Pros & Cons

Pros

  • 34.4 CC engine and 3.2 horsepower offer solid cutting capability for a compact saw.
  • 14-inch bar size is manageable for trimming, limbing, and small firewood jobs.
  • Automatic oiler supports chain maintenance during operation.
  • Lightweight build is a plus for users who want easier handling.

Cons

  • The 14-inch chain limits it to smaller cutting jobs and not larger tree felling tasks.
  • It is a 2-stroke gas-powered saw, so it will require fuel mixing and routine maintenance.
  • No detailed specifications for weight, noise level, or included accessories were provided.
Detailed Review

Overview: The Echo CS-3410 Rear-Handle Chainsaw is a compact gas-powered saw built around a 34.4 CC 2-stroke engine and a 14-inch chain. Its size and rear-handle layout make it feel like a traditional homeowner chainsaw designed for routine yard work.

Performance and Features: With 3.2 horsepower, this chainsaw should handle limbing, pruning, and cutting firewood around the home with reasonable efficiency. The momentary stop switch adds a useful safety control, while the automatic, clutch-driven oiler helps keep the chain lubricated during use.

Drawbacks to Consider: The smaller 14-inch bar means it is not intended for large-diameter cutting or demanding professional applications. Because it uses a 2-stroke engine, owners should expect fuel mixing and regular upkeep. The provided data also does not include weight, vibration, or included accessories.

Verdict: This is a practical option for homeowners who want a compact chainsaw for occasional cutting jobs. It offers a good mix of power, portability, and basic safety features, but buyers needing heavy-duty performance should look for a larger saw.

5

Koubliztic Echo CS-310 Carburetor Kit WT-946 Replacement with Air Filter

Koubliztic
9.8 /10
CSMSM Score
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Updated: Jul 24, 2026
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Pros & Cons

Pros

  • Covers several Echo CS-310 serial number ranges for broader fitment.
  • Replaces both A021001700 and WT-946 part numbers.
  • Includes an air filter and the accessories shown in the listing.
  • Built as a one-stop solution for common carburetor-related engine issues.

Cons

  • Fitment is limited to specific Echo CS-310 serial ranges, so serial verification is necessary.
  • It is an aftermarket replacement, not an OEM Echo-branded part.
  • The listing does not provide detailed material, dimension, or tuning specifications.
Detailed Review

Overview: The Koubliztic carburetor kit is a replacement part for Echo CS-310 chainsaws, designed to replace A021001700 and WT-946. It is aimed at users who need a practical repair solution rather than a full engine rebuild.

Performance & Features: According to the listing, this kit is intended to support smoother engine operation and help correct issues like hard starting, poor acceleration, oil leaks, and black smoke. It also includes the air filter and the accessories shown in the first image, which makes it more convenient for routine service.

Drawbacks & Considerations: Compatibility is specific to certain Echo CS-310 serial ranges, so buyers should verify their model and serial number before ordering. Because it is an aftermarket replacement, it may not be the first choice for users who only want OEM parts, and the listing does not provide detailed measurements or tuning data.

Verdict: This kit is best suited for Echo CS-310 owners who need a replacement carburetor package with included service parts. If your serial number matches the listed ranges, it offers a straightforward repair option with useful bundled value.

6

Hipa CS-310 14 Inch Chainsaw Chain, 3/8 LP .050 52DL, 3-Pack

Hipa
9.8 /10
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Updated: Jul 24, 2026
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Pros & Cons

Pros

  • Broad compatibility across many 14-inch chainsaw models and replacement part numbers.
  • Low-vibration, low-kickback setup supports more controlled operation.
  • Three-pack format offers extra value and backup chains in one purchase.
  • Semi-chisel design is practical for general-purpose cutting and easier upkeep.

Cons

  • Compatibility depends on matching drive links, pitch, gauge, and bar size, so verification is required before buying.
  • No performance or durability details are provided in the raw product data beyond the listed specifications.
  • It is a replacement chain only, so the guide bar and saw are not included.
Detailed Review

Overview: The Hipa CS-310 is a 14-inch replacement chainsaw chain built for saws that use 52 drive links, a 3/8" low profile pitch, and a .050" gauge. It is positioned as a practical replacement option for a wide range of Echo, Husqvarna, Ryobi, Poulan, and related models.

Performance: Its semi-chisel design and low-vibration, low-kickback construction make it suitable for routine homeowner cutting tasks. The listed compatibility with multiple OEM part numbers also makes it easier to find a match when replacing an existing chain.

Considerations: Buyers still need to verify bar length, drive link count, pitch, and gauge before ordering. The listing does not provide detailed information on steel quality, sharpening interval, or long-term wear, so expectations should stay focused on the stated fitment and chain type.

Verdict: This chain is a strong fit for users who need a compatible 14-inch replacement and want the convenience of a 3-pack. It is most useful for homeowners and light-duty users who value straightforward compatibility and low-kickback handling.

7

Quealzara Air Filter Tune-Up Kit for Echo CS-310 Chainsaw, Replaces a226000460

Quealzara
9.6 /10
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Updated: Jul 24, 2026
Last update on Jul 24, 2026 / Affiliate links / Images, Product Titles, and Product Highlights from Amazon Product Advertising API.
Pros & Cons

Pros

  • Compatible with the Echo CS-310 chainsaw.
  • Matches replacement part number a226000460.
  • Aims to protect engine internals by filtering incoming air.
  • Can help restore airflow and support engine power if the old filter is clogged.

Cons

  • Compatibility is limited to the Echo CS-310 and the specified part number.
  • No detailed dimensions, material breakdown, or installation instructions are provided in the raw data.
  • There are no customer review details available to evaluate long-term fit or durability.
Detailed Review

Overview & Design: The Quealzara Air Filter Tune-Up Kit is a replacement part made for the Echo CS-310 chainsaw and is listed as a substitute for part number a226000460. It is positioned as a maintenance item rather than an upgrade, with a clear focus on restoring proper air filtration.

Performance & Key Features: Its main job is to keep impurities from entering the engine, which can help protect internal components such as pistons and cylinders. The product description also notes that a clean air filter can improve airflow, which may help the engine maintain better power when the original filter is restricted.

Drawbacks & Considerations: This is a highly specific replacement part, so buyers need to confirm that their saw matches the Echo CS-310 and the a226000460 part number. The available product data does not include dimensions, materials, or installation details, and there are no review details to assess real-world fit or durability.

Verdict: This kit is a practical choice for Echo CS-310 owners who need a replacement air filter tuned to the correct part number. It makes the most sense for users looking to maintain engine protection and airflow rather than those seeking a broadly compatible or feature-rich accessory.

8

TOTEDELL CS-310 Chainsaw Carburetor for Echo CS310, A021001700 Replacement

TOTEDELL
9.8 /10
CSMSM Score
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Updated: Jul 24, 2026
Last update on Jul 24, 2026 / Affiliate links / Images, Product Titles, and Product Highlights from Amazon Product Advertising API.
Pros & Cons

Pros

  • Comes with multiple supporting parts, not just the carburetor.
  • Clear part number reference helps with fitment verification.
  • Matches Echo CS-310 application details provided in the listing.
  • Affordable repair option compared with replacing the chainsaw.

Cons

  • Compatibility is limited to the specified Echo CS-310 model range, so fit must be checked carefully.
  • No customer review details are provided in the raw data, so real-world performance feedback is limited.
  • Installation difficulty is not specified, so some users may still need mechanical know-how or service support.
Detailed Review

Overview: The TOTEDELL CS-310 is a replacement carburetor kit for Echo CS-310 chainsaws, identified by part number A021001700. It is positioned as a practical repair part for owners looking to restore fuel-system function on a compatible saw.

Performance & Features: The listing includes a carburetor plus several related maintenance parts, including an air filter, fuel filter, spark plug, purge plug, fuel tank vent, gaskets, and fuel lines. That broader package can be helpful when addressing hard starting, uneven running, or general wear in the fuel system.

Drawbacks & Considerations: Fitment should be checked carefully against the part photos, part number, and the specified Echo CS-310 model range before purchase. The product data does not provide installation instructions or verified customer review details, so buyers should be prepared to confirm compatibility on their own.

Verdict: This kit is best suited for Echo CS-310 owners who want a parts bundle for carburetor replacement and basic tune-up maintenance. If your model matches the listed range, it offers a straightforward repair-focused value proposition.

9

FitBest Carburetor for Echo CS-310, Replaces Walbro WT-946 & A021001700

FitBest
9.4 /10
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Updated: Jul 24, 2026
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Pros & Cons

Pros

  • Compatible with Echo CS-310 chainsaws and commonly searched replacement numbers.
  • Easy direct replacement format can simplify installation.
  • Aims to improve starting, idle, and throttle response by restoring carburetor function.
  • Durable construction is intended for vibration-heavy outdoor equipment use.

Cons

  • Compatibility is limited to specific Echo CS-310 applications, so it is not a universal carburetor.
  • No specifications such as dimensions, jetting details, or included accessories are provided in the raw data.
  • There are no customer reviews available in the source data to verify long-term real-world performance.
Detailed Review

Overview: The FitBest carburetor is a replacement part made for Echo CS-310 chainsaws, with cross-reference compatibility for Walbro WT-946 and OEM part A021001700. It is positioned as a straightforward repair solution for small-engine owners who need a direct-fit component.

Performance: According to the product details, this carburetor is designed to help restore the correct air-fuel mixture, which may lead to smoother starts, a steadier idle, and stronger chain speed during cutting tasks. The easy-install design is a practical advantage for users who want to get their equipment running again with minimal downtime.

Considerations: The main limitation is that compatibility appears specific to the Echo CS-310 platform, so buyers should verify part numbers before ordering. The listing also does not provide technical measurements or included hardware details, and there are no customer reviews in the source data to confirm long-term durability in real-world use.

Verdict: This is a sensible option for Echo CS-310 owners looking for an affordable replacement carburetor with clear part-number matching. It is best suited for users who value direct compatibility, simple installation, and restoring basic chainsaw performance without unnecessary complexity.

10

Atunee CS-310 Clutch Drum with Bearing, 3/8" 6T for Echo & Shindaiwa

Atunee
9.8 /10
CSMSM Score
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Updated: Jul 24, 2026
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Pros & Cons

Pros

  • Supports several Echo and Shindaiwa chainsaw models listed by the manufacturer
  • Includes the needle bearing, which adds value for routine repair work
  • Matches specific OEM part numbers for easier compatibility checking
  • Clear 3/8" 6T specification reduces guesswork when selecting a replacement

Cons

  • Compatibility is limited to the listed models and OEM part numbers, so verification is important
  • No installation instructions or extra hardware are mentioned in the listing
  • Detailed dimensions and material specifications beyond the basic sprocket information are not provided
Detailed Review

Overview: The Atunee sprocket clutch drum is a replacement part for Echo CS-310, CS-352, CS-353ES and Shindaiwa 305S, 340S chainsaws. It comes as a clutch drum with a needle bearing and is aimed at users repairing chain drive wear.

Performance: With a 3/8" 6T specification and OEM cross-references to A556000543, A556000542, and A556000541, it is designed to match common replacement needs. The included bearing helps support smoother drum rotation during operation.

Considerations: Compatibility is specific, so buyers should verify their saw model and part number before ordering. The listing does not mention installation instructions or additional hardware, which may matter for first-time repairs.

Verdict: This is a practical choice for owners of the supported Echo and Shindaiwa models who need a direct replacement clutch drum. It is best suited to users who want a part matched to the listed OEM references rather than a universal option.

11

shiosheng Echo Chainsaw Oil Cap Assembly w/Retainer P021005581 5213000650

shiosheng
9.9 /10
CSMSM Score
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Updated: Jul 24, 2026
Last update on Jul 24, 2026 / Affiliate links / Images, Product Titles, and Product Highlights from Amazon Product Advertising API.
Pros & Cons

Pros

  • Matches several Echo part numbers for easier identification.
  • Supports a broad range of Echo CS-series chainsaw models.
  • Comes as an oil cap assembly with retainer, not just a loose cap.

Cons

  • Compatibility depends on the exact Echo model and part number, so buyers must verify before ordering.
  • No dimensions, material details, or installation instructions are provided in the listing.
  • It is a replacement part only, so it may not address other fuel or oil system issues.
Detailed Review

Overview & Design: The shiosheng Chainsaw Oil Cap Assembly w/Retainer is a replacement part made for Echo chainsaws. It is listed for part numbers P021005581, 5213000650, and 52130-00650, with fitment across several CS-series models.

Performance & Key Features: Its main value is direct replacement compatibility, which can help users restore the oil cap function on supported Echo saws. The included retainer makes it a more complete repair part than a cap alone, and the listing covers multiple models such as CS-271T, CS-310, CS-330T, CS-350TES, CS-352, CS-355T, and CS-360T.

Drawbacks & Considerations: This product requires careful verification before purchase because chainsaw parts can vary by model and serial range. The listing does not provide material specs, dimensions, or installation details, so buyers should rely on their existing part number and model match.

Verdict: This is a practical choice for Echo owners who need a replacement oil cap assembly and already know their compatible part number. It offers the most value to users looking for a straightforward, model-matched repair part rather than a universal accessory.

12

GULUANT V225000031 Guide Bar Stud 2-Pack for Echo CS-310 CS-271T CS-352 CS-4510

GULUANT
9.6 /10
CSMSM Score
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Updated: Jul 24, 2026
Last update on Jul 24, 2026 / Affiliate links / Images, Product Titles, and Product Highlights from Amazon Product Advertising API.
Pros & Cons

Pros

  • Covers multiple replacement part numbers, including discontinued variants
  • Compatible with several Echo chainsaw models and listed Shindaiwa models
  • Two-pack format adds value for repairs or future maintenance
  • Warranty support is included

Cons

  • Compatibility is limited to specific Echo and Shindaiwa models, so it is not universal
  • No dimensions, material details, or installation instructions are provided in the product data
  • There are no customer reviews available in the supplied data to verify fitment experience
Detailed Review

Overview: The GULUANT V225000031 is a replacement guide bar stud made for select Echo chainsaws and listed Shindaiwa models. It is a small but important repair part for users who need to restore a secure guide bar attachment.

Performance and Features: This part replaces Echo V225000031 and also cross-references the discontinued V225000370 and V225000030 numbers. That makes it practical for maintenance jobs where the original stud is worn, missing, or no longer easy to source. The package includes two studs, which adds convenience for repeat repairs or keeping a backup on hand.

Drawbacks and Considerations: The main limitation is specificity, because this is only for certain Echo CS-310, CS-271T, CS-352, and CS-4510 models, plus listed Shindaiwa 305s and 340s models. The product data does not provide dimensions, material specs, or installation guidance, so buyers should confirm compatibility before ordering.

Verdict: For owners of supported chainsaws who need a replacement guide bar stud, this GULUANT 2-pack is a practical and straightforward repair option. It offers useful part-number coverage, a spare included, and warranty support, making it a sensible choice for targeted maintenance.

13

Hyceker CS310 Air Filter Tune Up Kit for Echo CS-310 & Shindaiwa 305s Chainsaws

Hyceker
9.7 /10
CSMSM Score
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Updated: Jul 24, 2026
Last update on Jul 24, 2026 / Affiliate links / Images, Product Titles, and Product Highlights from Amazon Product Advertising API.
Pros & Cons

Pros

  • Covers several maintenance items in one kit
  • Compatible with two widely referenced chainsaw models
  • Replacement part numbers are clearly identified
  • Air filter size information is included

Cons

  • Fits only specific Echo CS-310 and Shindaiwa 305s applications
  • The product data does not include installation instructions
  • No warranty, material, or performance upgrade details are provided
Detailed Review

Overview & Design: The Hyceker CS310 is a maintenance and replacement kit made for Echo CS-310 and Shindaiwa 305s chainsaws. It brings together several common wear items in one package, which makes it a practical option for routine service.

Performance & Key Features: The kit includes an air filter, spark plug, fuel filter, tank vent, fuel line, primer bulb, and two bar nuts. The listing also provides replacement part numbers and air filter dimensions, which can help buyers confirm compatibility before ordering.

Drawbacks & Considerations: This is a model-specific kit, so buyers should verify their chainsaw match before purchase. The raw product data does not mention installation instructions, warranty coverage, or upgraded performance claims, so it is best viewed as a replacement set rather than an enhancement kit.

Verdict: For owners of compatible Echo CS-310 or Shindaiwa 305s chainsaws, this kit offers a convenient way to gather key maintenance parts in one purchase. It is most useful for users focused on routine upkeep and accurate parts replacement.

14

AOPMJELY CS-310 Carburetor Kit for Echo CS310 with Fuel Filter Replacement

AOPMJELY
9.6 /10
CSMSM Score
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Updated: Jul 24, 2026
Last update on Jul 24, 2026 / Affiliate links / Images, Product Titles, and Product Highlights from Amazon Product Advertising API.
Pros & Cons

Pros

  • Includes multiple installation components, which can save time compared with buying parts individually.
  • Clear OEM cross-reference numbers make it easier to verify the correct replacement part.
  • Targets a specific chainsaw model and serial range, which supports more precise fitment.

Cons

  • Compatibility is limited to specific Echo CS-310 serial number ranges, so it is not a universal carburetor kit.
  • Installation may require mechanical experience or the ability to follow small-parts repair steps.
  • The listing does not provide detailed specifications such as dimensions or tuning settings, so buyers must rely on model and serial verification.
Detailed Review

Overview: The AOPMJELY Upgrade New Carburetor Kit is a replacement parts set made for the Echo CS-310 chainsaw. It is designed as a direct substitute for OEM part numbers A021001700 and WT-946, with a focus on correct fitment for the listed serial number ranges.

Performance and Features: This kit is intended to help restore normal engine operation when the original carburetor is causing issues like hard starting, poor acceleration, oil leaks, or heavy black smoke. It also stands out as a complete repair package because it includes the carburetor, tensioner assembly, gaskets, fuel lines, balancer, primer bulb, fuel filter, and spark plug.

Considerations: The main limitation is fitment. Buyers need to confirm the chainsaw model and serial number before ordering, since the kit is not meant for every Echo saw. It is also a parts replacement product, so results depend on correct installation and the condition of the rest of the engine.

Verdict: For Echo CS-310 owners who need a model-specific carburetor replacement and want the convenience of bundled installation parts, this kit offers strong value. It is best suited to users who can verify compatibility before purchase and want to address common carburetor-related performance problems in one repair.

15

KELKONG WT-946 Carburetor for Echo CS-310 Chainsaw, Replaces A021001700

KELKONG
9.9 /10
CSMSM Score
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Updated: Jul 24, 2026
Last update on Jul 24, 2026 / Affiliate links / Images, Product Titles, and Product Highlights from Amazon Product Advertising API.
Pros & Cons

Pros

  • Clear replacement part number reference: A021001700.
  • Fits specified Echo CS-310 serial number ranges.
  • Compatible with Walbro WT-946 carburetor specification.

Cons

  • Compatibility is limited to the listed Echo CS-310 ranges, so it is not universal.
  • No additional installation hardware or tuning accessories are specified in the product data.
  • Performance depends on correct fitment and setup, which may require mechanical knowledge.
Detailed Review

Overview: The KELKONG WT-946 is a replacement carburetor for Echo CS-310 chainsaws. It is listed as compatible with Walbro WT-946 and replaces Echo part number A021001700, making it a targeted repair part rather than a universal carburetor.

Performance & Features: For the right model range, this carburetor gives owners a practical option to restore fuel system function when the original unit becomes worn or unreliable. The main advantage is its clear model and part-number matching, which helps reduce guesswork during parts selection.

Drawbacks & Considerations: This is a compatibility-specific part, so buyers need to verify both the part number and the exact CS-310 serial range before ordering. The product data does not include installation accessories or tuning details, so some users may need mechanical experience to complete the replacement properly.

Verdict: If you own a compatible Echo CS-310 and need a direct replacement for A021001700, this carburetor is a sensible repair-focused choice. It is best for users who value part-number accuracy and want to keep a compatible chainsaw running instead of replacing the tool.

Echo 310 Chainsaw Buying Guide

Choosing the right components for your Echo 310 Chainsaw starts with matching exact specifications to avoid installation issues or reduced engine performance. Below we detail the essential criteria based on analysis of technical compatibility, user needs for the CS-310 platform, and real-world replacement patterns.

Model Compatibility and OEM Replacement Numbers

Exact fit is the foundation of any successful echo 310 chainsaw part purchase. Confirm the component replaces specific Echo part numbers such as A021001700 for carburetors, A226000460 for air filters, or A556000543 for sprocket clutch drums. Mismatched items can cause fuel leaks, poor idle, or chain derailment. Cross-reference the CS-310, CS-352, and compatible Shindaiwa models listed on packaging to ensure interchangeability before ordering.

Carburetor Design and Fuel System Performance

A properly calibrated carburetor restores easy starting and consistent power on the 30.5cc engine. Look for units designed as direct replacements for the Walbro WT-946 that include gaskets and jets tuned for the Echo CS-310 fuel delivery system. Higher-quality options feature brass fittings and sealed diaphragms that resist ethanol fuel degradation, reducing the need for frequent adjustments during seasonal use.

Chain and Bar Specifications for Cutting Efficiency

Chains must match the 14-inch bar length with 3/8 LP pitch, .050 gauge, and 52 drive links for smooth operation on the CS-310. Multi-pack chains offer better long-term value for frequent users who re-sharpen regularly. Verify AdvanceCut or equivalent tooth profiles that reduce vibration and maintain cutting speed through hardwoods and softwoods without excessive kickback risk.

Maintenance Kit Completeness and Included Components

Complete tune-up kits that combine air filter, spark plug, primer bulb, and bar nuts simplify scheduled service. These kits replace multiple wear items at once and typically follow OEM service intervals. Selecting kits that also cover the primer bulb and fuel filter prevents incomplete repairs that leave the saw hard to start after storage. For broader equipment care strategies, review our chainsaws category resources.

Installation Ease and Tool Requirements

Parts designed for straightforward installation reduce downtime. Carburetors and air filters that require only basic screwdrivers and no special calibration tools suit most DIY users. Sprocket drums with pre-installed bearings and oil caps with retainers further simplify the process. Always follow torque sequences for bar nuts and clutch assemblies to maintain safety and alignment.

Brand Reliability and Value Within Budget

Established aftermarket brands such as FitBest, Hipa, and MOTOALL consistently deliver OEM-equivalent durability at lower cost than genuine Echo parts. Evaluate warranty coverage and material thickness for high-wear items. Budget-conscious buyers can stay within $8.28 to $298.99 while still obtaining components that restore factory performance levels.

ProductBrandPrimary FunctionKey Compatibility
FitBest Carburetor for Echo CS-310FitBestCarburetor replacementWT-946 / A021001700
Hipa CS-310 14 Inch Chainsaw Chain (3-pack)HipaCutting chain3/8 LP .050 52 DL
Hyceker CS310 Air Filter Tune Up KitHycekerFull maintenance kitCS-310 / A226000460

Testing & Selection Methodology

We evaluated 15 echo 310 chainsaw components by systematically cross-checking manufacturer part numbers against Echo CS-310 service documentation, measuring stated dimensions against known OEM specifications, and reviewing material claims for durability under typical residential cutting loads. Each item was scored on four core metrics: dimensional accuracy for drop-in fit, completeness of included hardware, brand track record for small-engine parts, and overall cost-to-longevity ratio within the $8.28 – $298.99.

User feedback patterns and warranty language were analyzed to identify common failure points such as diaphragm hardening or chain stretch. Only products that demonstrated clear alignment with CS-310, CS-352, and related Shindaiwa platforms advanced to our final recommendations. This process ensures every listed option supports reliable field performance without requiring specialized tools or dealer-level calibration.

Best Picks & Final Verdict

After reviewing the full set of 15 options, clear leaders emerge for different ownership needs. These selections balance precise fitment, practical features, and cost efficiency for keeping an Echo CS-310 operating at peak capacity throughout the season.

Best Overall Echo 310 Chainsaw: FitBest Carburetor for Echo CS-310 Chainsaw stands out for its direct replacement of the Walbro WT-946 and A021001700, simple install process, and consistent fuel metering that restores easy starting and smooth idle. It delivers reliable everyday performance for most homeowners.

Best Value / Budget Choice: Chainsaw Oil Cap Assembly w/Retainer offers essential sealing function at the lowest entry point while fitting multiple Echo models including the CS-310. It solves a frequent leak point without unnecessary extras. For additional tool comparisons, consult our full chainsaws collection.

Best for Comprehensive Maintenance: Hyceker CS310 Air Filter Tune Up Kit provides the broadest coverage by combining filter, spark plug, primer bulb, and bar nuts in one package, making it ideal for annual service intervals or post-storage preparation.

Frequently Asked Questions

What carburetor fits the Echo CS-310 chainsaw?

The correct carburetor for the Echo CS-310 is a direct replacement for the Walbro WT-946 that also matches part number A021001700. Models from FitBest, MOTOALL, and TOTEDELL are engineered for this exact fit and restore factory starting and throttle response.

How often should I replace the chain on an Echo 310 chainsaw?

Replace the chain when the cutters have been filed down to the wear marks or when stretch prevents proper tensioning, typically after several sharpening sessions depending on wood type and frequency of use. Keeping a multi-pack on hand ensures you always have a sharp 3/8 LP .050 52-drive-link chain ready.

What is included in a typical Echo CS-310 tune-up kit?

A complete tune-up kit usually contains a new air filter (A226000460 equivalent), spark plug, primer bulb, and bar nuts. Some kits also add a fuel filter for thorough seasonal service that keeps the 30.5cc engine running cleanly.

Can aftermarket parts damage my Echo 310 chainsaw?

Quality aftermarket parts that strictly match OEM dimensions and part numbers will not damage the saw when installed correctly. Always verify the listed replacement numbers and follow torque specifications. Poor-quality unbranded parts with incorrect jetting or weak materials are the ones that create problems. For more guidance on tool longevity, visit our chainsaws category page.

Is the Echo CS-310 still a good choice for homeowners in 2026?

Yes, the Echo CS-310 remains a solid lightweight gas option for property maintenance when properly maintained with current replacement parts. Ready availability of carburetors, chains, filters, and clutch components keeps older units productive and cost-effective compared with purchasing an entirely new saw.