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Makita DCS540-21 chainsaw

Makita DCS540-21 chainsaw Parts

Here are the diagrams and repair parts for Makita DCS540-21 chainsaw, as well as links to manuals and error code tables, if available.

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Browse Parts for DCS540-21 Chainsaws

  • Hex. Nut M8 for Makita DCS540-21 - Part 923-208-004

    Chain brake, hand guard diagram

    Hex. Nut M8

    Part #923-208-004

    The manufacturer no longer makes this part, and there's no substitute part

  • Catch Lever for Makita DCS540-21 - Part 020-117-301

    Fuel tank, tubular grip diagram

    Catch Lever

    Part #020-117-301

    The manufacturer no longer makes this part, and there's no substitute part

  • Idle Stop Screw (s) for Makita DCS540-21 - Part 001-151-240

    Carburetor diagram

    Idle Stop Screw (s)

    Part #001-151-240

    The manufacturer no longer makes this part, and there's no substitute part

  • Set Gasket/diaphragm for Makita DCS540-21 - Part 021-151-540

    Carburetor diagram

    Set Gasket/diaphragm

    Part #021-151-540

    The manufacturer no longer makes this part, and there's no substitute part

  • Cylindrical Pin (3) for Makita DCS540-21 - Part 935-932-320

    Fuel tank, tubular grip diagram

    Cylindrical Pin (3)

    Part #935-932-320

    The manufacturer no longer makes this part, and there's no substitute part

  • Heatshield for Makita DCS540-21 - Part 020-174-170

    Hood, air filter, muffler diagram

    Heatshield

    Part #020-174-170

    The manufacturer no longer makes this part, and there's no substitute part

  • Safety Disc (2) for Makita DCS540-21 - Part 927-304-000

    Chain brake, hand guard diagram

    Safety Disc (2)

    Part #927-304-000

    The manufacturer no longer makes this part, and there's no substitute part

  • Insulating Hose (100mm) for Makita DCS540-21 - Part 970-502-050

    Ignition electronics, starter diagram

    Insulating Hose (100mm)

    Part #970-502-050

    The manufacturer no longer makes this part, and there's no substitute part

  • Pump Drive for Makita DCS540-21 - Part 027-245-010

    Oil pump diagram

    Pump Drive

    Part #027-245-010

    The manufacturer no longer makes this part, and there's no substitute part

  • Set Of Control Parts for Makita DCS540-21 - Part 957-150-040

    Carburetor diagram

    Set Of Control Parts

    Part #957-150-040

    The manufacturer no longer makes this part, and there's no substitute part

Most common symptoms to help you fix your chainsaws

Choose a symptom to see related chainsaw repairs.

Main causes: cracked fuel lines, leaky carburetor seals, damaged fuel tank cap, cracked fuel tank…

Main causes: stale gasoline, cracked fuel lines, dirty carburetor, damaged spark plug, worn piston rings…

Main causes: bad gas, engine needs tune up, cracked fuel lines, dirty carburetor…

Repair guides for gas chainsaws

These step-by-step repair guides will help you safely fix what’s broken on your chainsaw.

How to replace a chainsaw carburetor

How to replace a chainsaw carburetor

If the engine won't start even though there's fuel in the chainsaw, the carburetor could be the problem. Sometimes, it's…

Repair time and Difficulty

 15 minutes or less
How to replace chainsaw fuel lines

How to replace chainsaw fuel lines

The fuel line on a chainsaw becomes brittle over time and can crack. Replacing it doesn't require a lot of DYI experienc…

Repair time and Difficulty

 15 minutes or less
How to rebuild a chainsaw carburetor

How to rebuild a chainsaw carburetor

If your chainsaw isn't running well, a dirty carburetor could be the problem. You can take it apart, clean it and rebuil…

Repair time and Difficulty

 15 minutes or less

Effective articles & videos to help repair your chainsaws

Use the advice and tips in these articles and videos to get the most out of your chainsaw.

When to replace a chainsaw bar

When to replace a chainsaw bar

Chainsaw bar wear leads to crooked cuts and chain damage. Learn the signs of wear and how to choose the right replacemen…

How to tune-up a gas chainsaw

How to tune-up a gas chainsaw

Tuning up a chainsaw is easier than you think. Follow these steps to clean, inspect, and replace key parts to keep your …

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Top questions about Sears and Sears PartsDirect

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