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Echo
Gas Chainsaw

Model # CS-400 Official Echo chainsaw

Here are the diagrams and repair parts for Official Echo CS-400 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 212 parts  |
Pipe 43721035430
#7

Auto-oiler diagram

Pipe

Part #43721035430

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

Ex Gasket V104000731
#7

Exhaust diagram

Ex gasket

Part #V104000731

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

Lawn & Garden Equipment Washer 90060000005
#11

Cylinder cover/ignition switch diagram

Lawn & garden equipment washer

Part #90060000005

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

Cleaner Cap 13040538332
#7

Cylinder cover/ignition switch diagram

Cleaner cap

Part #13040538332

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

Clip V490000310
#5

Ignition/flywheel diagram

Clip

Part #V490000310

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

Handle Cover 35115535430
#20

Handle/throttle control/engine cover diagram

Handle cover

Part #35115535430

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

Chainsaw Drive Gear V651000011
#22

Chain brake diagram

Chainsaw drive gear

Part #V651000011

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

Plug, Friction 12317815030
#23

Carburetor - wt-820 diagram

Plug, friction

Part #12317815030

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

Chain C309000030
#19

Chain brake diagram

Chain

Part #C309000030

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

Washer 12314926030
#5

Carburetor - wt-820 diagram

Washer

Part #12314926030

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…

Read more
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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