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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  |
Saw Chain 16 Inch (alternative Parts) 668-7296

#152B

All parts diagram

Saw chain 16 inch (alternative parts)

Part #668-7296

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

Line Trimmer Self-tapping Screw (black) 305-812

#125

All parts diagram

Line trimmer self-tapping screw (black)

Part #305-812

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

Cylinder 669-6864

#64

All parts diagram

Cylinder

Part #669-6864

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

Fuel Tank Cap 668-5385

#99

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Fuel tank cap

Part #668-5385

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

Valve Spring 669-0873

#27

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Valve spring

Part #669-0873

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

Guide Plate 669-6898

#165

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Guide plate

Part #669-6898

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

Air Vent Val 668-5370

#96

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Air vent val

Part #668-5370

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

Shutter Plate 669-6904

#9

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Shutter plate

Part #669-6904

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

Bolt,hex,5x4 669-6317

#42

All parts diagram

Bolt,hex,5x4

Part #669-6317

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

Step Bolt 669-6878

#85

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Step bolt

Part #669-6878

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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