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Solo 644 gas chainsaw Parts

Here are the diagrams and repair parts for Solo 644 gas chainsaw, as well as links to manuals and error code tables, if available.

Solo 644 gas chainsaw
By Schematic
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This is the number corresponding to the part on the diagram / schematic

Browse Parts for 644 Chainsaws

  • Spring for Solo 644 - Part 0070254

    Chain saw engine diagram

    Spring

    Part #0070254

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

  • Piston (651 for Solo 644 - Part 2200244

    Chain saw engine diagram

    Piston (651

    Part #2200244

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

  • Clutch Spring for Solo 644 - Part 0071226

    Chain saw engine diagram

    Clutch Spring

    Part #0071226

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

  • Grommet for Solo 644 - Part 0066335

    Chain saw engine diagram

    Grommet

    Part #0066335

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

  • Guide Pawl for Solo 644 - Part 2074408

    Starter diagram

    Guide Pawl

    Part #2074408

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

  • Chainsaw Clutch for Solo 644 - Part 3500363

    Chain saw engine diagram

    Chainsaw Clutch

    Part #3500363

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

  • Sticker "solo 644" (651) for Solo 644 - Part 0069679

    Handle bar diagram

    Sticker "solo 644" (651)

    Part #0069679

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

  • Screw for Solo 644 - Part 0010531

    Screw

    Part #0010531

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

  • Heating Foil, Assembly (644 H/651 H) for Solo 644 - Part 0084574

    Crankcase assembly diagram

    Heating Foil, Assembly (644 H/651 H)

    Part #0084574

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

  • Piston for Solo 644 - Part 2200265

    Chain saw engine diagram

    Piston

    Part #2200265

    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 …

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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