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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

  • Needle Cage 12x15x13 for Makita DCS540-21 - Part 962-210-025

    Oil pump diagram

    Needle Cage 12x15x13

    Part #962-210-025

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

  • Radial Ring for Makita DCS540-21 - Part 962-900-050

    Crankcase diagram

    Radial Ring

    Part #962-900-050

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

  • Tubular Handle Assembly for Makita DCS540-21 - Part 957-310-027

    Fuel tank, tubular grip diagram

    Tubular Handle Assembly

    Part #957-310-027

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

  • Rewind Spring for Makita DCS540-21 - Part 020-163-031

    Ignition electronics, starter diagram

    Rewind Spring

    Part #020-163-031

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

  • Hex. Nut M8x1 for Makita DCS540-21 - Part 920-308-024

    Ignition electronics, starter diagram

    Hex. Nut M8x1

    Part #920-308-024

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

  • Spring for Makita DCS540-21 - Part 020-117-273

    Fuel tank, tubular grip diagram

    Spring

    Part #020-117-273

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

  • Screw 5.5x16 (4) for Makita DCS540-21 - Part 913-455-164

    Fuel tank, tubular grip diagram

    Screw 5.5x16 (4)

    Part #913-455-164

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

  • Suction Line Assembly, Oil for Makita DCS540-21 - Part 020-245-040

    Oil pump diagram

    Suction Line Assembly, Oil

    Part #020-245-040

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

  • Disengaging Lever for Makita DCS540-21 - Part 027-213-221

    Chain brake, hand guard diagram

    Disengaging Lever

    Part #027-213-221

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

  • C.s. Screw M5x20 for Makita DCS540-21 - Part 908-105-204

    Crankcase diagram

    C.s. Screw M5x20

    Part #908-105-204

    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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