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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.
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Browse Parts for 644 Chainsaws
Chain saw engine diagram
Chain 13"
Part #6900908Replaced by #21BPX056G
Manufacturer substitutionThis part replaces 6900908. Substitute parts can look different from the original.In Stock$58.65
Qty
Chain saw engine diagram
Bar 15"
Part #6900464Replaced by #158PXLBK095
Manufacturer substitutionThis part replaces 6900464. Substitute parts can look different from the original.In Stock$104.54QtyChain saw engine diagram
Bar 15"
Part #6900343Replaced by #160VXLGK095
Manufacturer substitutionThis part replaces 6900343. Substitute parts can look different from the original.In Stock$104.54QtyChain saw engine diagram
Chain 15"
Part #6900875SReplaced by #20BPX067G
Manufacturer substitutionThis part replaces 6900875S. Substitute parts can look different from the original.In Stock$64.16QtyChain saw engine diagram
Chain 15"
Part #6900881Replaced by #21BPX064G
Manufacturer substitutionThis part replaces 6900881. Substitute parts can look different from the original.In Stock$62.43QtyChain saw engine diagram
Bar, 18-in
Part #6900861Replaced by #180VXLGK095
Manufacturer substitutionThis part replaces 6900861. Substitute parts can look different from the original.In Stock$108.78QtyChain saw engine diagram
Bar 13"
Part #6900500Replaced by #138PXLBK095
Manufacturer substitutionThis part replaces 6900500. Substitute parts can look different from the original.In Stock$100.18QtyHandle bar diagram
Grip Plate
Part #6073499
The manufacturer no longer makes this part, and there's no substitute part
Chain saw engine diagram
Link W-rivet
Part #0540249
The manufacturer no longer makes this part, and there's no substitute part
Handle bar diagram
Fuel Hose
Part #6063302
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
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
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
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.
Chainsaw bar wear leads to crooked cuts and chain damage. Learn the signs of wear and how to choose the right replacemen…
Tuning up a chainsaw is easier than you think. Follow these steps to clean, inspect, and replace key parts to keep your …
Get answers to frequently asked questions about Sears and Sears PartsDirect.…
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