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Makita
Gas Chainsaw

Model # DCS520I Official Makita 18" gas chainsaw

Here are the diagrams and repair parts for Official Makita DCS520I 18" gas chainsaw, as well as links to manuals and error code tables, if available.

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Model diagram and schematic

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ALL PARTS
Showing 10 of 185 parts  |
Disc Washer 900004354
#27

Oil pump, clutch, chain brake diagram

Disc washer

Part #900004354

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

Hex Screw 5x 027213520
#57

Oil pump, clutch, chain brake diagram

Hex screw 5x

Part #027213520

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

Guide Plate 027111040
#38

Oil pump, clutch, chain brake diagram

Guide plate

Part #027111040

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

Catch Lever 020117172
#6

Tubular grip/rubber buffer/muffler diagram

Catch lever

Part #020117172

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

Screen, Dcs4 144150050
#6

Carburetor diagram

Screen, dcs4

Part #144150050

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

Straining Screen 389213080
#11

Cylinder/piston/crankshaft diagram

Straining screen

Part #389213080

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

Hand Guard A 020213453
#20

Oil pump, clutch, chain brake diagram

Hand guard a

Part #020213453

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

Spring 027166071
#16

Ignitlon electronics/flywheel/starter diagram

Spring

Part #027166071

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

Self-cutting 913455164
#22

Tubular grip/rubber buffer/muffler diagram

Self-cutting

Part #913455164

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

Ignition Assembly 027140000
#21

Ignitlon electronics/flywheel/starter diagram

Ignition assembly

Part #027140000

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

Symptoms for gas chainsaws

Choose a symptom to see related chainsaw repairs.

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Why won't my chainsaw start?

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

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Why does my chainsaw run roughly?

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

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What should I do if my chainsaw leaks gas?

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

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Repair guides for gas chainsaws

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

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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…

Read more
Repair difficulty
Time required
 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…

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Repair difficulty
Time required
 15 minutes or less
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…

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Repair difficulty
Time required
 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.

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What are the most common replacement parts for chainsaws?

What are the most common replacement parts for chainsaws?

Learn about the most common replacement parts for chainsaws and how they can help you fix chainsaw problems.…

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Top questions about Sears and Sears PartsDirect

Top questions about Sears and Sears PartsDirect

Get answers to frequently asked questions about Sears and Sears PartsDirect.…

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