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

  • Cylinder for Solo 644 - Part 2011756

    Chain saw engine diagram

    Cylinder

    Part #2011756

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

  • Ignition Module for Solo 644 - Part 2300752

    Chain saw engine diagram

    Ignition Module

    Part #2300752

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

  • Lawn & Garden Equipment Nut for Solo 644 - Part 0028137

    Chain saw engine diagram

    Lawn & Garden Equipment Nut

    Part #0028137

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

  • Air Guide for Solo 644 - Part 6073641

    Chain saw engine diagram

    Air Guide

    Part #6073641

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

  • Generator Cover  (644 H/651 H) for Solo 644 - Part 6074432

    Crankcase assembly diagram

    Generator Cover (644 H/651 H)

    Part #6074432

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

  • Washer for Solo 644 - Part 6042817

    Chain saw engine diagram

    Washer

    Part #6042817

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

  • Crankcase for Solo 644 - Part 2200238

    Chain saw engine diagram

    Crankcase

    Part #2200238

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

  • Fuel Pick-up for Solo 644 - Part 2700327

    Handle bar diagram

    Fuel Pick-up

    Part #2700327

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

  • Throttle Axle Kit for Solo 644 - Part 0510953

    Chain saw engine diagram

    Throttle Axle Kit

    Part #0510953

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

  • Adjuster for Solo 644 - Part 6300208

    Chain saw engine diagram

    Adjuster

    Part #6300208

    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