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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  |
Heat Deflector V341000050
#26

Handle/throttle control/engine cover diagram

Heat deflector

Part #V341000050

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

Grommet 13211544330
#22

Cylinder cover/ignition switch diagram

Grommet

Part #13211544330

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

Screw 4x8 90022004008
#2

Exhaust diagram

Screw 4x8

Part #90022004008

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

Tapping Screw 4x12 (2) V202000060
Tapping screw 4x12 (2)

Part #V202000060

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

Sawing Chain-16"-low Profile (gauge:.050"/pitch:.375") 91P57G
#3

Guide bar/sawing chain/kick guard diagram

Sawing chain-16"-low profile (gauge:.050"/pitch:.375")

Part #91P57G

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

Wrench, W/screwdriver X602000020
#2

Tools diagram

Wrench, w/screwdriver

Part #X602000020

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

Lawn & Garden Equipment Screw 90025305020
#10

Cylinder cover/ignition switch diagram

Lawn & garden equipment screw

Part #90025305020

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

Fan Cover A172000571
#10

Starter diagram

Fan cover

Part #A172000571

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

Throttle Rod C454000100
#30

Cylinder cover/ignition switch diagram

Throttle rod

Part #C454000100

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

Cap Connector A365000050
Cap connector

Part #A365000050

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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