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Hitachi
Gas Chainsaw

Model # CS40EA Official Hitachi chainsaw

Here are the diagrams and repair parts for Official Hitachi CS40EA 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 174 parts  |
Leaf Blower Fuel Line 669-8401

#119

All parts diagram

Leaf blower fuel line

Part #669-8401

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

Holder Spring 669-8409

#113

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Holder spring

Part #669-8409

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

Hex Bolt 668-5412

#76

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Hex bolt

Part #668-5412

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

Muffler Protector 669-8458

#54

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Muffler protector

Part #669-8458

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

Wire,b 668-5338

#49

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Wire,b

Part #668-5338

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

Insulated Carburetor 669-8461

#18

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Insulated carburetor

Part #669-8461

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

Hex Socket Hex 305-583

#79

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Hex socket hex

Part #305-583

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

Cleaner Support 669-8427

#40

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Cleaner support

Part #669-8427

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

C-clip 669-6854

#66

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C-clip

Part #669-6854

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

Pump Gasket 668-5212

#23

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Pump gasket

Part #668-5212

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…

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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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