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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.
By Schematic
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Browse Parts for DCS540-21 Chainsaws
Cylinder, piston and accessories diagram
Chain 18"
Part #523-102-064Replaced by #72V064G
Manufacturer substitutionThis part replaces 523-102-064. Substitute parts can look different from the original.In Stock$62.96
Qty
Cylinder, piston and accessories diagram
Piston Ring
Part #033-132-020
The manufacturer no longer makes this part, and there's no substitute part
Hood, air filter, muffler diagram
Screw 4.2x13
Part #915-042-130
The manufacturer no longer makes this part, and there's no substitute part
Cylinder, piston and accessories diagram
Chain Cover
Part #952-100-643
The manufacturer no longer makes this part, and there's no substitute part
Carburetor diagram
Friction Ball
Part #118-151-170
The manufacturer no longer makes this part, and there's no substitute part
Crankcase diagram
Spike Bar Assembly
Part #020-250-020
The manufacturer no longer makes this part, and there's no substitute part
Fuel tank, tubular grip diagram
Fuel Line
Part #965-404-460
The manufacturer no longer makes this part, and there's no substitute part
Ignition electronics, starter diagram
Hex. Nut M8x1
Part #920-308-024
The manufacturer no longer makes this part, and there's no substitute part
Chain brake, hand guard diagram
Protection Cover
Part #027-213-280
The manufacturer no longer makes this part, and there's no substitute part
Fillister Screw
Part #908-005-305
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
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
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
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.
Chainsaw bar wear leads to crooked cuts and chain damage. Learn the signs of wear and how to choose the right replacemen…
Tuning up a chainsaw is easier than you think. Follow these steps to clean, inspect, and replace key parts to keep your …
Get answers to frequently asked questions about Sears and Sears PartsDirect.…
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