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Hitachi CS40EA chainsaw Parts

Here are the diagrams and repair parts for Hitachi CS40EA chainsaw, as well as links to manuals and error code tables, if available.

Hitachi CS40EA chainsaw
By Schematic
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Browse Parts for CS40EA Chainsaws

  • Tapping Screw for Hitachi CS40EA - Part 668-5415

    #155

    All parts diagram

    Tapping Screw

    Part #668-5415

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

  • Worm for Hitachi CS40EA - Part 669-6886

    #162

    All parts diagram

    Worm

    Part #669-6886

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

  • Fuel Pipe for Hitachi CS40EA - Part 669-8453

    #167

    All parts diagram

    Fuel Pipe

    Part #669-8453

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

  • Insulated Cord for Hitachi CS40EA - Part 669-8457

    #52

    All parts diagram

    Insulated Cord

    Part #669-8457

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

  • Line Trimmer Engine Crankshaft Oil Seal for Hitachi CS40EA - Part 668-4607

    #70

    All parts diagram

    Line Trimmer Engine Crankshaft Oil Seal

    Part #668-4607

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

  • Packing Intake for Hitachi CS40EA - Part 669-6895

    #14

    All parts diagram

    Packing Intake

    Part #669-6895

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

  • Flywheel Nut for Hitachi CS40EA - Part 669-6879

    #87

    All parts diagram

    Flywheel Nut

    Part #669-6879

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

  • Spark Plug Bpm-7a  (alternative Parts) for Hitachi CS40EA - Part 669-8432

    #13A

    All parts diagram

    Spark Plug Bpm-7a (alternative Parts)

    Part #669-8432

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

  • Scrw W Flang for Hitachi CS40EA - Part 305-558

    #134

    All parts diagram

    Scrw W Flang

    Part #305-558

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

  • Piston for Hitachi CS40EA - Part 669-8521

    #67

    All parts diagram

    Piston

    Part #669-8521

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

Most common symptoms to help you fix your chainsaws

Choose a symptom to see related chainsaw repairs.

Main causes: cracked fuel lines, leaky carburetor seals, damaged fuel tank cap, cracked fuel tank…

Main causes: stale gasoline, cracked fuel lines, dirty carburetor, damaged spark plug, worn piston rings…

Main causes: bad gas, engine needs tune up, cracked fuel lines, dirty carburetor…

Repair guides for gas chainsaws

These step-by-step repair guides will help you safely fix what’s broken on your chainsaw.

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…

Repair time and Difficulty

 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…

Repair time and Difficulty

 15 minutes or less
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…

Repair time and Difficulty

 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.

When to replace a chainsaw bar

When to replace a chainsaw bar

Chainsaw bar wear leads to crooked cuts and chain damage. Learn the signs of wear and how to choose the right replacemen…

How to tune-up a gas chainsaw

How to tune-up a gas chainsaw

Tuning up a chainsaw is easier than you think. Follow these steps to clean, inspect, and replace key parts to keep your …

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Top questions about Sears and Sears PartsDirect

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