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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Browse Parts for
DCS520I Chainsaws
Square Nut M 923305000
#31

Cylinder/piston/crankshaft diagram

Square nut m

Part #923305000

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

Radial Ring 962900050
#26

Cylinder/piston/crankshaft diagram

Radial ring

Part #962900050

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

Washer 5.3, 924105300
#28

Hood/air filter/intake system diagram

Washer 5.3,

Part #924105300

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

Tap Screw 913447134
#20

Tubular grip/rubber buffer/muffler diagram

Tap screw

Part #913447134

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

Shaft For Le 027213130
#41

Oil pump, clutch, chain brake diagram

Shaft for le

Part #027213130

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

Lever Link 020117290
#7

Tubular grip/rubber buffer/muffler diagram

Lever link

Part #020117290

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

Spring, Dcs4 027213120
#40

Oil pump, clutch, chain brake diagram

Spring, dcs4

Part #027213120

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

Vent Valve 965404260
#18

Cylinder/piston/crankshaft diagram

Vent valve

Part #965404260

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

Washer 5.2 X 924500049
#35

Oil pump, clutch, chain brake diagram

Washer 5.2 x

Part #924500049

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.

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

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

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

Repair guides for gas chainsaws

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

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 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…

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…

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.

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.…

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.…