Get free shipping on your order, with any water filter subscription. Find my filter

Open Hamburger Menu
Sears Parts Direct
Tips to find your model number
Solo 644 gas chainsaw

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.

By Schematic
SELECT DIAGRAM
?

This is the number corresponding to the part on the diagram / schematic

Browse Parts for 644 Chainsaws

  • Lh Cutter for Solo 644 - Part 0540203

    Chain saw engine diagram

    Lh Cutter

    Part #0540203

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

  • Circuit Switch for Solo 644 - Part 2300469

    Circuit Switch

    Part #2300469

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

  • Lawn & Garden Equipment Bolt for Solo 644 - Part 6032639

    Handle bar diagram

    Lawn & Garden Equipment Bolt

    Part #6032639

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

  • Lawn & Garden Equipment Washer for Solo 644 - Part 0034100

    Chain saw engine diagram

    Lawn & Garden Equipment Washer

    Part #0034100

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

  • Primer Ring for Solo 644 - Part 6074958

    Handle bar diagram

    Primer Ring

    Part #6074958

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

  • Piston for Solo 644 - Part 6031330

    Chain saw engine diagram

    Piston

    Part #6031330

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

  • Screw for Solo 644 - Part 0018267

    Screw

    Part #0018267

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

  • Washer for Solo 644 - Part 0031260

    Starter diagram

    Washer

    Part #0031260

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

  • 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

  • Nut for Solo 644 - Part 0028130

    Handle bar diagram

    Nut

    Part #0028130

    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.…

Parts & More

Chainsaw
Coffee Maker
Cycling
Dishwasher
Dryer
Electric Range
Front-Engine Lawn Tractor
Gas Water Heater
Laundry Center
Material Handling
Microwave
Parts
Side-By-Side Refrigerator
Top-Mount Refrigerator
Washer
Weight System