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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  |
Priming Pump 668-5139

#94

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Priming pump

Part #668-5139

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

Aluminum Tape (b) 669-8524

#17

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Aluminum tape (b)

Part #669-8524

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

Hinge Screw 668-5218

#33

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Hinge screw

Part #668-5218

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

Flat Tap Spring 669-6872

#114

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Flat tap spring

Part #669-6872

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

Crank Case S 669-8441

#69

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Crank case s

Part #669-8441

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

Throttle Lever 669-8452

#122

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Throttle lever

Part #669-8452

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

Starter Pawl 669-6877

#84

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Starter pawl

Part #669-6877

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

Hinge Pin 668-5219

#35

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Hinge pin

Part #668-5219

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

Square Head 669-8437

#62

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Square head

Part #669-8437

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

Clutch Washer 669-6882

#159

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Clutch washer

Part #669-6882

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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