Chainsaw

A dull chain, hard starting, rough idling, or a starter that no longer engages does not always mean your chainsaw is finished. Often, one worn component is causing the problem. Browse our chainsaw parts from BlueStars Parts, including chains, carburetors, air filters, ignition parts, recoil starters, tensioners, sprockets, and tune-up kits for compatible chainsaw models.

Before ordering, check your chainsaw model number and compare the replacement part specifications carefully, especially chain pitch, gauge, drive link count, and compatible part numbers.

Which Chainsaw Part Matches Your Problem?

Start with the symptom you are seeing or hearing. These common signs can help narrow down which chainsaw replacement part to inspect:

• The chainsaw is hard to start or will not start: inspect the carburetor, spark plug, ignition coil, fuel filter, and fuel lines.
• The engine starts but stalls or runs rough: a dirty air filter, restricted fuel system, worn carburetor, or ignition problem may be affecting engine performance.
• The chainsaw loses power while cutting: check the air filter, fuel delivery system, carburetor, and cutting chain for wear or restriction.
• The chain cuts slowly or unevenly: inspect the chainsaw chain for dull, damaged, or stretched cutters and confirm the correct pitch, gauge, and drive link count.
• The chain will not stay properly tensioned: inspect the chain tensioner adjuster, guide components, and drive system for wear or damage.
• The starter rope does not retract or engage: the recoil starter assembly, pulley, spring, or starter rope may need replacement.
• The chainsaw has weak or inconsistent spark: inspect the spark plug and ignition coil before replacing fuel-system components.

Always disconnect the spark plug before servicing a gas chainsaw and follow the equipment manufacturer's safety instructions before inspecting or replacing moving or cutting components.

Popular Chainsaw Replacement Parts

These replacement parts cover several common chainsaw maintenance and repair needs:

• MS170 Carburetor Tune-Up Kit for Stihl MS170 MS180 Chainsaw: designed for compatible Stihl 017, 018, MS170, and MS180 models experiencing hard starting, rough idling, stalling, or fuel-delivery problems.
• MS170 MS180 Air Filter Tune-Up Kit: includes maintenance components for compatible Stihl MS170 and MS180 chainsaws and can help address restricted airflow, rough running, and routine service needs.
• MS250 Air Filter Tune-Up Kit: designed for compatible Stihl 021, 023, 025, MS210, MS230, and MS250-series chainsaws and includes air, fuel, and ignition maintenance components.
• 1123 007 1000 Chain Tensioner Adjuster Kit: helps restore proper chain tension adjustment on compatible Stihl chainsaw models when the adjuster is worn or no longer holds tension correctly.
• 1123 080 1802 Recoil Starter Assembly: a replacement starter assembly for compatible Stihl chainsaws when the pull rope, pulley, or recoil mechanism no longer works correctly.

Match the replacement part number and compatible model information before ordering, even when two chainsaw parts look similar.

Shop Chainsaw Parts by Type

Already know which chainsaw system needs attention? Browse by part type to narrow down your repair:

• Chainsaw blade and cutting parts: find replacement chains for compatible bar lengths, pitches, gauges, and drive link counts.
• Chainsaw filter and airflow parts: browse air filters and tune-up components designed to help maintain clean airflow and consistent engine performance.
• Chainsaw fuel and ignition parts: find carburetors, ignition coils, fuel-system parts, and related components for starting and running problems.

How to Find the Right Chainsaw Replacement Part

Chainsaw parts should be selected using your model number, original part number, and component specifications rather than appearance alone.

Check the Chainsaw Model Number

The chainsaw model number is commonly located on the starter housing, on the side of the housing behind the top handle, on the motor housing, or near the rear grip. Use this number to confirm that the replacement part is designed for your exact chainsaw model.

Match the Original Part Number

Whenever possible, compare the original part number printed or stamped on the existing component with the replacement listing. This is especially important for carburetors, ignition coils, starter assemblies, air filters, and tensioner parts.

Check Chainsaw Chain Specifications

For a chainsaw chain replacement, verify all three key measurements before ordering:

• Pitch: the spacing between the chain's drive links, such as 3/8-inch Low Profile.
• Gauge: the thickness of the drive link that fits into the guide bar groove, such as .050-inch.
• Drive link count: the total number of drive links in the chain.

A chain with the wrong pitch, gauge, or number of drive links will not fit or operate correctly, even if the bar length appears to match.

Check the Chainsaw Brand and Compatible Models

Many replacement chainsaw parts fit several models within the same brand or may cross-reference multiple original part numbers. Review the compatibility list on the product page and confirm your model before ordering.

Find Chainsaw Parts for Popular Brands

The current chainsaw parts selection includes components compatible with popular equipment brands and model families such as Stihl, Husqvarna, Echo, Poulan, Poulan Pro, Craftsman, Ryobi, Homelite, Remington, and others.

Compatibility varies by individual product. A carburetor, air filter, ignition coil, or chain designed for one chainsaw series should not be assumed to fit another model simply because the parts look alike.

Chainsaw Maintenance and Repair Resources

Routine chainsaw maintenance can help prevent hard starting, poor cutting performance, and premature wear. Keep the air filter clean, inspect the fuel system, maintain the correct chain tension, and replace worn cutting components when needed.

Explore the BlueStars Parts' DIY Repair Blog for additional troubleshooting and maintenance resources for chainsaws and other outdoor power equipment.

When servicing the cutting system, starter assembly, fuel system, or ignition components, follow the chainsaw manufacturer's procedures and safety instructions. If the source of a mechanical or fuel-related problem is unclear, have the equipment inspected before continued use.

Chainsaw Parts FAQs

How do I know which chainsaw chain fits my saw?

Check the required pitch, gauge, and drive link count for your chainsaw or guide bar. All three specifications must match. Bar length alone is not enough to confirm that a replacement chain will fit.

What chainsaw parts should I check if the engine will not start?

Start by checking the fuel, spark plug, air filter, fuel filter, fuel lines, carburetor, and ignition coil. The correct diagnosis depends on whether the engine has spark, receives fuel, and has adequate airflow.

When should I replace a chainsaw air filter?

Replace the air filter when it is damaged, cannot be cleaned effectively, or becomes heavily restricted by dust and sawdust. A clogged filter can reduce airflow and contribute to poor engine performance.

Can chainsaw replacement parts fit more than one model?

Yes. Many chainsaw parts are compatible with multiple models or cross-reference several original part numbers. Always check the exact model and part number listed on the product page before installation.

Why Order Chainsaw Parts From BlueStars Parts?

Here is what you get when you shop with us:

• Chainsaw replacement parts for common cutting, fuel, airflow, ignition, starting, and maintenance needs
• Detailed model and part-number compatibility information to help confirm fit before ordering
• Replacement chains and maintenance parts for a range of popular chainsaw brands and models
• Fast delivery on in-stock parts, plus support when you need help checking compatibility

BlueStars Parts is an independent reseller, and third-party brand names appear only to show compatibility.