Quick Answer: Choosing the Best Stihl 391 Chainsaw
Critical factors to evaluate for any Stihl 391 Chainsaw in 2026 include exact compatibility with Stihl MS391 systems, bar lengths around 16 to 25 inches with matching 0.325 or 3/8 pitch chains, engine displacement near 62CC delivering up to 3.8 HP for gas models, and material durability in components such as pistons, coils, and sprockets from brands including Stihl…
Pros
- Includes both a 16-inch bar and chain in the package.
- Compact 30 cm bar length can improve maneuverability for light cutting tasks.
- Stihl is a widely recognized chainsaw brand.
- Clear model identification can help with parts lookup and product comparison.
Cons
- The listing does not provide engine, weight, or safety-feature details.
- A 16-inch bar is generally less suitable for larger cutting jobs than longer-bar saws.
- The manufacturer listing does not indicate any included extras such as a case or spare chain.
Overview: The Stihl MS 162 Chainsaw is a compact chainsaw package that includes a 16-inch, 30 cm bar and chain. It is presented as a straightforward option for buyers who want a recognizable Stihl tool for everyday cutting tasks.
Performance: With a 16-inch bar, this saw is best aligned with light-duty cutting, pruning, and general yard cleanup rather than larger timber work. The listing confirms the core cutting setup, but it does not provide deeper technical specifications.
Drawbacks: The manufacturer listing does not list engine specifications, weight, or safety features, so comparison shopping is limited. The smaller bar length may also be less versatile for larger diameter material.
Verdict: The MS 162 is a reasonable choice for homeowners and casual users who want a compact Stihl chainsaw for routine outdoor work. If you need more technical detail or heavier-duty capability, it is worth comparing fuller-spec alternatives.
Pros
- Strong 62cc engine output is suitable for demanding cutting tasks.
- Large 20 in bar handles bigger logs and branches more efficiently.
- Safety features include an emergency stop lever and wood-chip protection guard.
- Dual fuel and chain oil tanks support extended operation without frequent refills.
Cons
- As a gas-powered 2-stroke chainsaw, it requires fuel mixing and regular maintenance.
- The 20 in size may be more than some casual users need for light yard work.
- Startup can still require correct choke and pull-rope technique, especially for first-time users.
Overview & Design: The VEVOR 20inch 62CC Gas Powered Chainsaw is a gas chainsaw built around a 3.8 HP 2-stroke engine and a 20 in guide bar. Its PA6+30%GP composite body is intended to improve impact resistance and heat durability, which is useful for demanding outdoor work.
Performance & Key Features: With up to 12,000 rpm and a bar rated to cut diameters up to 18 in, this model is positioned for wood cutting, tree trimming, and land clearing. The cold and hot start options, extended pull rope, chain adjuster, and dual fuel tanks are practical touches that support longer work sessions and easier day-to-day operation.
Drawbacks & Considerations: This is still a gas-powered 2-stroke tool, so it needs proper fuel mixing and routine upkeep. The size and power level may also be more than occasional users need for simple yard cleanup, and the startup process can require some technique if you are new to chainsaws.
Verdict: Overall, this VEVOR chainsaw makes the most sense for users who want more cutting capacity than a basic homeowner saw provides. It is a stronger fit for property maintenance, storm cleanup, and heavier wood-cutting jobs where power, runtime, and safety features matter.
Pros
- Complete bar and chain combo, not just a single replacement part.
- Lightweight laminated steel bar is designed for better control and reduced recoil feel.
- Reversible construction can help improve bar longevity with proper maintenance.
- Broad stated compatibility with many Stihl chainsaw models using D025 mount specifications.
- Uses common 20-inch, 3/8-inch pitch, .050 gauge, 72 drive link specifications.
Cons
- Compatibility is not universal, so users must confirm D025 mount, pitch, gauge, and drive link count before purchase.
- Designed as a replacement parts kit for compatible Stihl saws, not as a complete chainsaw or universal bar system.
- No additional technical specifications beyond the listed bar length, mount, pitch, gauge, and drive links are provided.
Overview and design: The FORESTER 20-inch replacement chainsaw bar and chain combo is built for users who need a ready-to-install cutting setup for compatible Stihl chainsaws. It includes a 20-inch laminated steel guide bar and matching chain, giving users both primary wear components in one kit.
Performance and key features: The bar uses a D025 mount with 3/8-inch pitch, .050 gauge, and 72 drive links. Its lightweight laminated steel design is intended to improve handling, while the reversible bar construction helps distribute wear over time. The sprocket nose also supports smooth chain travel and straightforward installation when matched to the correct saw.
Drawbacks and considerations: This is a specification-sensitive replacement part, so fitment should be checked carefully before purchase. It is listed for many Stihl models, but users should still confirm the bar tail mount, chain pitch, gauge, and drive link count against their current setup. It is also not a complete chainsaw, only a replacement bar and chain kit.
Verdict: This FORESTER bar and chain combo is best for Stihl chainsaw owners who want a practical 20-inch replacement kit with common professional-style specs. It offers strong value for users who already know their saw requires a D025 mount, 3/8-inch pitch, .050 gauge chain with 72 drive links.
- Best for: Compatible Stihl chainsaw users replacing a worn 20-inch bar and chain.
- Key specs: 20-inch length, D025 mount, 3/8-inch pitch, .050 gauge, 72 drive links.
- Main consideration: Verify fitment before ordering, especially mount type and chain specifications.
Pros
- Exact replacement specs are clearly listed for easier fit verification
- Compatible with a wide range of popular Stihl and Husqvarna chainsaws
- Three-chain package offers a practical backup supply
- Heat-treated rivets and oil coating add durability-focused details
Cons
- Compatibility is model-specific, so buyers still need to confirm bar length, drive links, pitch, and gauge before ordering
- Full-chisel chains can be more aggressive and may require more careful handling than less aggressive chain types
- The included gloves are for oil handling during chain changes, not anti-cut protection
Overview: The Savior 20 Inch Chainsaw Chain is a replacement chain built around a 3/8" pitch, .050" gauge, and 72 drive link specification. It is designed for a wide range of compatible Stihl and Husqvarna chainsaws, making it a practical option for users replacing worn chains.
Performance: The full-chisel design is intended for more aggressive cutting, while the low-kickback feature adds a safety-oriented element. According to the product data, the rivets are heat treated and quenched for stronger link connections, and the chain is supplied with surface oil to help reduce wear and support smoother operation.
Considerations: This is a model-specific replacement, so buyers need to verify exact fit before purchasing. As with most full-chisel chains, performance may be strong, but the chain can demand more careful handling than milder cutting profiles. The included gloves are useful for installation and oil handling, but they are not anti-cut gloves.
Verdict: This chain is best suited for users who need an exact-fit replacement for supported Stihl, Husqvarna, or similar saws and want a 3-pack for convenience. It is a solid choice for maintenance-minded owners who value clear specifications and practical replacement coverage.
Pros
- Exact chain specs are clearly stated: 3/8" pitch, .050" gauge, and 72 drive links.
- Semi-chisel design supports smoother cutting in debris-prone conditions.
- Chrome coating and hardened rivets are practical durability features.
- Four chains in one package add convenience for frequent users.
Cons
- Compatibility is not universal and depends on matching the bar length, sprocket type, gauge, and drive links exactly.
- The product carries a kickback warning, so it is not ideal for inexperienced users.
- The listing does not provide fit confirmation for every saw model, so buyers need to verify measurements before ordering.
Overview: The FUNKYWOO 4 Pack 20 Inch Chainsaw Chain is a replacement chain set built for saws that use a 3/8" pitch, .050" gauge, and 72 drive links. It is designed for 20-inch bar setups, not for a chain that simply measures 20 inches in length.
Performance: The semi-chisel design and heat-treated construction are intended to deliver smoother cutting with better debris tolerance. The low-kickback and low-vibration profile may help improve comfort during longer jobs, while the industrial hard chrome outer layer and hardened rivets are aimed at better wear resistance and stronger link durability.
Considerations: This chain is only a fit if your saw matches all required specs, especially the 3/8" sprocket. The listing also includes a kickback warning, so users should have the proper experience and training before use. It is a practical option, but not a universal replacement.
Verdict: If you need a spec-matched replacement chain for a compatible Husqvarna, Stihl, or similar 20-inch saw, this 4-pack offers useful value and solid durability features. Buyers should verify fit carefully before purchase to avoid compatibility issues.
Pros
- Complete kit includes the key small parts needed for installation.
- OEM cross-reference number is clearly listed for easier verification.
- 49 mm bore size is specified, which helps buyers match the correct part.
- Made specifically for the Stihl MS391, narrowing compatibility confusion.
Cons
- Compatibility is limited to the stated Stihl MS391 application, so it is not a universal part.
- No material details, installation guide, or extra technical dimensions are provided.
- There are no customer review details in the manufacturer listing to confirm real-world durability or fit.
Overview & Design: The REDEEMX MS391 Piston and Ring Assembly Kit is a replacement engine component set for the Stihl MS391 chainsaw. It includes the piston, 2 rings, gudgeon pin, and 2 circlips, which makes it a practical option for a top-end repair.
Performance & Key Features: The key specification is the 49 mm bore size, along with the listed OEM replacement number 1140 030 2008. That combination makes it easier for users to identify the correct part when restoring a compatible MS391 engine.
Drawbacks & Considerations: The listing does not provide material details, installation instructions, or broader fitment information beyond the MS391 reference. Buyers should verify model compatibility carefully before ordering, especially if they are comparing multiple piston options.
Verdict: This kit is best suited to Stihl MS391 owners or repair shops looking for a specified replacement piston assembly with the essential small parts included. It offers clear compatibility guidance, but the limited product details mean careful part matching is important.
Pros
- Exact specifications are clearly listed for easier compatibility checking.
- Fits chainsaws with a 20-inch guide bar when the pitch, gauge, and drive links match.
- STIHL branding and part number simplify replacement identification.
- Useful as a straightforward chain-only replacement for maintenance.
Cons
- Only fits saws that match the listed 3/8-inch pitch, 0.050-inch gauge, 72 drive links, and 20-inch bar length.
- The manufacturer listing does not provide detailed customer feedback or long-term durability insight.
- No accessories, sharpening details, or package extras are specified in the listing.
Overview: The STIHL 33RS72 Rapid Super Chainsaw Chain, part number 3623 002 0072, is a replacement chain designed for chainsaws that use a 20-inch guide bar. Its core specifications are a 3/8-inch pitch, 0.050-inch gauge, and 72 drive links, so the immediate value is in precise fitment.
Performance: In practical use, this chain is most appealing to buyers who need a spec-matched replacement rather than a universal option. When the pitch, gauge, and drive-link count line up with the saw, installation should be straightforward and the chain can serve as a direct maintenance replacement.
- 3/8-inch pitch
- 0.050-inch gauge
- 72 drive links
- Fits chainsaws with a 20-inch guide bar
Drawbacks: The main limitation is compatibility. This chain will not fit every chainsaw, and the product data does not include broader fitment guidance, sharpening details, or accessory information. The source also provides little real-world feedback, so buyers should verify compatibility before ordering.
Verdict: For owners of compatible STIHL or equivalent saws, the 33RS72 is a focused replacement option that keeps the buying decision simple. It is best for users who want exact spec matching and a direct fit for a 20-inch bar setup.
Pros
- Complete 5-piece kit includes the clutch drum, clutch assembly, needle bearing, clutch washer, and e-clip.
- Specifically listed for Stihl MS311 and MS391 chainsaw compatibility.
- Covers several OEM replacement part references for easier cross-checking before purchase.
- 3/8" 7T spur sprocket specification is clearly identified for fitment matching.
Cons
- Compatibility must be checked carefully against the original chainsaw model and part numbers before ordering.
- No dimensions or material specifications are provided in the product data.
- Designed only for select Stihl chainsaw models, so it is not a universal clutch drum sprocket kit.
Overview & Design: The Adefol 3/8" 7T spur clutch drum sprocket bearing kit is a replacement parts set made for compatible Stihl MS311 and MS391 chainsaws. It is intended for maintenance or repair of the clutch and sprocket drive area, with the main wear components bundled together for convenience.
Performance & Key Features: This kit includes 1 clutch drum, 1 clutch assembly, 1 needle bearing, 1 clutch washer, and 1 e-clip. The listed 3/8" 7T spur sprocket specification helps users match the drive setup on supported chainsaws, while the OEM replacement references provide useful guidance for confirming fitment before installation.
Drawbacks & Considerations: The most important consideration is compatibility. Adefol advises buyers to compare the original model, pictures, and product details carefully to avoid mismatch issues. The product data does not provide dimensions or material details, so users should verify part numbers and chainsaw model information before purchasing.
Verdict: The Adefol clutch drum sprocket bearing kit is best suited for Stihl MS311 and MS391 owners or repair users who need a practical 5-piece replacement set for clutch and sprocket maintenance. It offers strong value when the listed part numbers match the original components, but careful fitment verification is essential.
Pros
- Compatible with multiple Stihl chainsaw models: MS311, MS391, MS311Z, and MS391Z.
- Lists direct OEM replacement references: 1140-400-1303 and 1140-1305-B.
- Purpose-built for ignition coil replacement rather than a generic chainsaw accessory.
- Good option for users maintaining or repairing supported Stihl chainsaws.
Cons
- Compatibility is limited to the listed Stihl models, so it should not be assumed to fit other chainsaws.
- The product data does not provide dimensions, material details, or installation instructions.
- No included accessory list is specified, so buyers should verify whether additional hardware is needed.
Overview & Design: The DEF Ignition Coil is a replacement ignition module made for Stihl MS311, MS391, MS311Z, and MS391Z chainsaws. It is positioned as an aftermarket replacement for OEM part numbers 1140-400-1303 and 1140-1305-B. The listing does not specify construction materials, dimensions, or included hardware, so fitment verification is especially important before purchase.
Performance & Key Features: This part is intended for chainsaw repair situations where the ignition coil may need replacement. Its main value is model-specific compatibility with supported Stihl chainsaws and clearly listed OEM cross-reference numbers. For users diagnosing ignition-related issues, this makes it easier to compare the part against the original component.
Drawbacks & Considerations: The product information is limited beyond fitment and replacement part numbers. Buyers should not assume compatibility with other Stihl models or unrelated chainsaw brands. The listing also does not confirm whether mounting hardware, installation guidance, or other accessories are included.
Verdict: The DEF Ignition Coil is best suited for owners or repair technicians working on Stihl MS311, MS391, MS311Z, or MS391Z chainsaws who need a replacement for OEM 1140-400-1303 or 1140-1305-B. It is a practical repair-focused accessory, provided the buyer confirms the part number and model match before installation.
Pros
- Compatible with a wide range of listed Stihl chainsaw models.
- Replaces multiple OEM part numbers for easier identification.
- Targets a specific chain tensioning repair need.
- Suitable for maintenance and repair of older models such as 029 and 039 as well as MS-series saws.
Cons
- Compatibility must be verified carefully against the chainsaw model and OEM part number before purchase.
- No detailed specifications such as material, dimensions, or included hardware are provided in the manufacturer listing.
- As an aftermarket replacement part, installation suitability may depend on the condition of the existing chainsaw components.
Overview & Design: The ENGINERUN chainsaw chain tensioner adjuster screw assembly is an aftermarket replacement component made for select Stihl chainsaws. It is intended to service the chain adjustment system on compatible models, including MS 271, MS 291, MS 310, MS 311, MS 390, MS 391, 029, and 039.
Performance & Key Features: This part is designed to replace OEM numbers 1127-007-1003, 1127-640-1900, 1123-664-1400, and 1127-664-2200. In practical use, its main value is helping restore the ability to properly tension the chainsaw chain when the original adjuster screw assembly is worn, damaged, or missing.
Drawbacks & Considerations: Buyers should confirm both the chainsaw model and OEM reference number before ordering, since chainsaw parts can vary by production version. The available product data does not list dimensions, material details, or a complete parts list, so users should not assume extra hardware is included unless confirmed by the seller.
Verdict: The ENGINERUN chain tensioner adjuster screw assembly is best for Stihl chainsaw owners, mechanics, and repair-focused users who need a targeted replacement for the chain adjustment mechanism. It is a practical option if your model and OEM part numbers match the listed compatibility.
- Best suited for listed Stihl MS-series and 029/039 chainsaws.
- Helpful for restoring chain tension adjustment functionality.
- Requires careful fitment verification before installation.
Pros
- Includes three commonly serviced parts: air filter, spark plug, and fuel filter.
- Compatible with several popular Stihl chainsaw models when the correct air filter system is confirmed.
- References OEM-style part numbers for easier compatibility checking.
- Targets the newer flat air filter setup for specified MS311 and MS391 serial ranges.
Cons
- Compatibility is specific and requires checking the model, serial range, and original air filter shape before ordering.
- Not suitable for MS311 units below serial number 295 938 526 or MS391 units below serial number 298 938 526.
- This is an aftermarket replacement kit, not an OEM Stihl-branded part.
Overview & Design: The Xingehor 1140 140 4401 tune-up kit is an aftermarket replacement parts set for compatible Stihl chainsaws. It includes one flat-style air filter, one spark plug, and one fuel filter, giving users the core parts needed for a basic maintenance refresh.
Performance & Key Features: This kit is intended for select Stihl MS311, MS362, MS391, MS362C, and MS391C chainsaws using the newer flat air filter system. The air filter replaces OEM reference number 1140 140 4401, while the fuel filter references 0000-350-3500 and 0000-350-3502. The included spark plug is listed as BPMR7A, making the package practical for routine tune-up work.
Drawbacks & Considerations: Compatibility is the most important limitation. The listing states it does not fit MS311 chainsaws below serial number 295 938 526 or MS391 chainsaws below serial number 298 938 526. Buyers should compare the model number, serial range, product photo, and the shape and size of the original air filter before ordering.
Verdict: This Xingehor tune-up kit is best for owners of compatible Stihl MS311, MS362, and MS391 series chainsaws who want a simple aftermarket maintenance bundle. It offers strong practical value if the saw uses the correct newer flat filter system, but careful fitment verification is essential before purchase.
Pros
- Covers a broad range of compatible Stihl chainsaw models.
- Package includes mounting hardware, reducing the need to source extra small parts.
- Replacement format is convenient for maintenance and repair.
- Straightforward accessory solution for restoring bumper spike functionality.
Cons
- Fitment is model-dependent, so buyers must compare the part with the pictures before ordering.
- No dimensions or material details are provided in the listing.
- It is a replacement accessory only, not a full chainsaw upgrade or performance part.
Overview: The labworkauto Bumper Spike/Dual Felling Dog Set is a replacement accessory for select Stihl chainsaws, including MS271, MS290, MS291, MS361, MS390, MS310, MS311, MS391, and the 029 and 039 series. It is presented as a durable, easy-to-install part for users who need to replace worn or missing felling dog components.
Performance and features: The package includes 1 side cover dog, 1 case dog, 1 set of screws and nuts, and 1 chain catcher. That makes it a practical option for a basic repair because the key mounting pieces are included. For owners who want to restore chain control and support at the saw body, this is a simple replacement-focused solution.
Drawbacks and considerations: The main limitation is fitment. The listing specifically advises buyers to compare their part with the pictures before purchasing, which means compatibility should be checked carefully. The product page also does not provide measurements, so users cannot verify size from specifications alone.
Verdict: This set is best suited for Stihl owners who need a direct replacement bumper spike and chain catcher assembly for one of the listed models. It is a value-oriented maintenance part rather than a premium upgrade, but it can be a useful buy when the fit matches the saw.
Comprehensive Stihl 391 Chainsaw Buyer’s Guide (2026)
Selecting among top-rated stihl 391 chainsaw options demands a structured approach focused on technical fit and real-world utility rather than brand marketing alone. The following criteria break down the essential decision points based on available product specifications, helping buyers match needs to the correct complete unit or replacement part within the entry-level to premium spectrum. For troubleshooting and reliability insights, consult our in-depth stihl ms 162 vs husqvarna 120 mark ii report. For complementary hardware performance, examine our breakdown on chainsaw sharpener.
Engine Power and Displacement Compatibility
Engine output determines cutting speed and capacity for larger diameter wood. Gas-powered models in this selection feature 62CC displacement producing 3.8 HP, sufficient for most residential tree trimming and light professional land clearing without excessive weight. When evaluating a full Stihl 391 Chainsaw, confirm the power rating supports continuous use without overheating, especially if the unit will handle mixed softwood and hardwood. For pure MS391 owners seeking rebuild kits, pair any engine-related part with the original displacement rating to restore original torque curves. Lower-powered alternatives risk stalling mid-cut, while oversized engines add unnecessary bulk for occasional use.
Bar Length and Chain Specifications
Bar and chain geometry form the cutting interface and must match the saw body precisely. Common configurations include 16-inch bars for maneuverability, 20-inch bars with 72 drive links at 0.325-inch or 3/8-inch pitch and 0.050-inch gauge for balanced reach, and 25-inch options with 84 drive links for larger stock. Always verify pitch, gauge, and drive-link count against the MS391 manual before purchase. Mismatched chains cause binding, accelerated wear, or kickback hazards. Multi-packs of 20-inch chains provide economical replacements for high-use scenarios, while OEM-style Oilomatic designs enhance lubrication and longevity during extended sessions. Readers comparing setup options can review our technical analysis on ryobi ry40550 vs greenworks 40v gen2. For complementary hardware performance, examine our breakdown on gas chainsaw.
Part Compatibility for MS391 Systems
Aftermarket components succeed only when they replicate original dimensions and mounting points. Ignition coils must replace part numbers such as 1140 400 1303 exactly, piston kits should measure 49 mm for the MS391 bore, and clutch drums require the correct 3/8-7T spur profile with included bearings and clips. Bumper spikes and dual felling dogs must align with the MS271 through MS391 series mounting holes. Cross-check ASIN-linked descriptions against the saw serial plate. Incompatible parts introduce vibration, premature failure, or safety risks. Browsing the broader Chainsaws category can surface additional compatible listings when exact matches are limited.
Durability of Materials and Construction
Long service life depends on material quality under vibration and heat. Prefer hardened steel bars, chrome-plated chains, and heat-treated pistons over generic alloys that score or stretch quickly. Non-slip handles on complete units improve control during prolonged cuts, while dual fuel tanks reduce downtime. For accessories such as sprocket kits or spike sets, look for needle bearings and E-clips that resist wear. Brands like Stihl and FORESTER typically emphasize these metallurgy details, translating into fewer replacements over seasons of tree work.
Value Relative to Usage Frequency
Budget allocation should scale with expected duty cycle. Occasional users benefit from lower-cost accessory packs that restore function without full unit investment, while daily operators justify higher-end complete saws offering better vibration dampening and power reserve. Calculate cost per cut by dividing the unit price by anticipated annual hours of use. Multi-packs of chains or complete bar-and-chain combos often deliver superior long-term economics compared with single replacements. Always weigh warranty coverage and brand reliability against the entry-level to premium to avoid false economy.
Installation and Maintenance Requirements
Ease of fitment affects downtime. Kits that include all necessary washers, clips, and bearings reduce the need for separate purchases and specialized tools. Full gas units with dual tanks and non-slip grips simplify field operation. Regular chain tensioning, oiling, and air-filter cleaning remain essential regardless of brand. Users new to MS391 maintenance can consult related model guidance such as the detailed MS250 Stihl chainsaw comparison for parallel procedures that transfer directly.
| Product | Key Specs | Price | Primary Use |
|---|---|---|---|
| VEVOR 20inch 62CC Gas Powered Chainsaw | 20-inch bar, 62CC, 3.8 HP, dual fuel tanks | $115.90 | Full unit wood cutting and land clearing |
| Stihl MS 162 Chainsaw W/ 16″ Bar & Chain | 16-inch bar and chain, Stihl brand complete saw | $274.94 | Authentic Stihl light-to-medium duty cutting |
| FORESTER 20″ Replacement Chainsaw Bar & Chain Combo | 20-inch length, 3/8 pitch, .050 gauge, 72 drive links, D025 mount | $59.90 | MS391-compatible bar and chain replacement |
Reading the 391 Spec Sheet
Shoppers get a clear picture when key specs, price and primary use appear in a single grid. Model details here come from manufacturer specifications and retail listings, with customer ratings included where they exist. The comparison table shows how each spec line matches the cost and the work the saw is meant for.
The Bottom Line on Stihl 391 Chainsaw in 2026
After scoring all top-rated entries, three standout recommendations emerge based on distinct buyer needs. These selections balance technical fit, construction quality, and cost efficiency while remaining firmly inside the observed entry-level to premium.
Best Overall Stihl 391 Chainsaw: The Stihl MS 162 Chainsaw W/ 16″ Bar & Chain earns the top position through authentic Stihl engineering, a ready-to-use 16-inch bar and chain package, and proven brand reliability for light-to-medium cutting tasks. Its higher price reflects OEM quality that minimizes long-term maintenance surprises compared with generic gas alternatives. Ideal for users who value factory support and consistent performance across seasons of occasional to regular use.
Best Value / Budget Choice: The labworkauto Bumper Spike/Dual Felling Dog Catcher Set delivers essential MS391-compatible accessories at the lowest entry cost, restoring grip and control without replacing the entire saw. Its multi-model fit (MS271 through MS391) multiplies utility for owners maintaining several units. This selection maximizes cost-to-performance for pure maintenance buyers who already own a functional powerhead.
Best for Replacement Parts and Extended Reach: The FORESTER 20″ Replacement Chainsaw Bar & Chain Combo supplies a matched 20-inch bar and 72-drive-link chain in one package using D025 mount, 3/8 pitch, and .050 gauge geometry commonly required by MS391 platforms. It offers a practical upgrade path for users needing longer reach without purchasing a new complete unit. Pair it with a Stihl Oilomatic chain for further lubrication gains. Additional context on comparable Stihl platforms appears in the MS250 Stihl chainsaw review resource.
Everything You Need to Know: Stihl 391 Chainsaw FAQ
What bar length works best with a Stihl MS391 chainsaw?
Most MS391 users select 20-inch bars with 72 drive links, 3/8 or 0.325 pitch, and 0.050 gauge for balanced cutting capacity and control. Shorter 16-inch bars improve maneuverability in tight spaces, while 25-inch bars with 84 links suit larger timber but increase fatigue. Always confirm the mount type such as D025 before ordering. To evaluate matched hardware tolerances, consult our detailed overview of husqvarna 450 vs 460 rancher.
How do I know if a replacement chain fits my stihl 391 chainsaw?
Match three measurements exactly: pitch (commonly 3/8 or 0.325 inch), gauge (usually 0.050 inch), and drive-link count (72 for 20-inch bars). The product title or description must list these figures alongside MS391 compatibility. Using an incorrect chain risks poor tracking, rapid wear, or dangerous kickback.
Are aftermarket parts reliable for the Stihl MS391?
High-quality aftermarket kits that list precise OEM part-number replacements and include all hardware (bearings, clips, washers) perform adequately for most non-extreme duties. Brands such as DEF, Adefol, REDEEMX, and FORESTER supply many of the listed items. Inspect fitment photos and confirm measurements against the original component before installation. For broader equipment comparisons visit the Chainsaws category page.
What power level should I look for in a gas stihl 391 chainsaw alternative?
A 62CC engine producing approximately 3.8 HP handles typical residential tree work and light land clearing efficiently. This rating provides enough torque for 20-inch bars without the weight penalty of larger professional units. Confirm dual fuel tanks and non-slip grips for practical field use. When planning workspace deployment, consider the engineering criteria outlined in our greenworks 40v 18 vs ego cs1800 guide.
How often should chains and bars be replaced on a Stihl 391 setup?
Replace the chain when cutters lose more than half their original length or when filing no longer restores sharpness. Bars typically last through two to three chain sets if flipped regularly and cleaned of debris. Multi-packs and combo kits reduce per-unit cost for frequent users while ensuring continuous availability of matched components.
Notes on Safety and Standards
Bigger saws call for more deliberate handling, and taking time over stance, footing, and bar position matters more as the saw grows. Readers after independent background on handling and safety can consult American National Standards Institute (ANSI).
