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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

  • Hood for Makita DCS540-21 - Part 027-118-154

    Hood, air filter, muffler diagram

    Hood

    Part #027-118-154

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

  • Screw M5x62 (2) for Makita DCS540-21 - Part 908-205-625

    Hood, air filter, muffler diagram

    Screw M5x62 (2)

    Part #908-205-625

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

  • Washer (2) for Makita DCS540-21 - Part 924-105-300

    Hood, air filter, muffler diagram

    Washer (2)

    Part #924-105-300

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

  • Hex. Head Screw for Makita DCS540-21 - Part 027-213-520

    Crankcase diagram

    Hex. Head Screw

    Part #027-213-520

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

  • Disc for Makita DCS540-21 - Part 924-500-049

    Chain brake, hand guard diagram

    Disc

    Part #924-500-049

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

  • Cover Plate for Makita DCS540-21 - Part 027-213-111

    Chain brake, hand guard diagram

    Cover Plate

    Part #027-213-111

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

  • Spiral Clamping Pin (2) for Makita DCS540-21 - Part 936-430-160

    Crankcase diagram

    Spiral Clamping Pin (2)

    Part #936-430-160

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

  • Key for Makita DCS540-21 - Part 939-620-371

    Crankcase diagram

    Key

    Part #939-620-371

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

  • Disc for Makita DCS540-21 - Part 928-405-000

    Hood, air filter, muffler diagram

    Disc

    Part #928-405-000

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

  • Cover For Prefilter for Makita DCS540-21 - Part 020-173-610

    Crankcase diagram

    Cover For Prefilter

    Part #020-173-610

    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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