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Solo
Gas Chainsaw

Model # 645 Official Solo chainsaw

Here are the diagrams and repair parts for Official Solo 645 chainsaw, as well as links to manuals and error code tables, if available.

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Model diagram and schematic

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ALL PARTS
Showing 10 of 198 parts  |
Bar 15" 6900343
#200A

Cylinder/ignition module diagram

Bar 15"

Part #6900343

Replaced by #160VXLGK095

?
Manufacturer substitution
This part replaces 6900343. Substitute parts can look different from the original.
$62.56
In Stock
Bar, 18-in 6900861
#200B

Cylinder/ignition module diagram

Bar, 18-in

Part #6900861

Replaced by #180VXLGK095

?
Manufacturer substitution
This part replaces 6900861. Substitute parts can look different from the original.
$66.96
In Stock
Chainsaw Oil Pump Drive Worm 6074976
#22

Cylinder/ignition module diagram

Chainsaw oil pump drive worm

Part #6074976

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

Filter Housing 2500679
#157

Cylinder/ignition module diagram

Filter housing

Part #2500679

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

Oil Pressure Housing 6063329
#80

Cylinder/ignition module diagram

Oil pressure housing

Part #6063329

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

Screw 0011302
#72

Handle/cover diagram

Screw

Part #0011302

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

Piston (incl. Key 119a) (645) 2200242
#120B

Cylinder/ignition module diagram

Piston (incl. key 119a) (645)

Part #2200242

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

Ball Bearing 0050102
#9

Cylinder/ignition module diagram

Ball bearing

Part #0050102

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

Chainsaw Tension Adjustment Screw 0018230
#111

Cylinder/ignition module diagram

Chainsaw tension adjustment screw

Part #0018230

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

Oil Seal 0054220
#8

Cylinder/ignition module diagram

Oil seal

Part #0054220

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

Symptoms for gas chainsaws

Choose a symptom to see related chainsaw repairs.

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What should I do if my chainsaw leaks gas?

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

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Why does my chainsaw run roughly?

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

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Why won't my chainsaw start?

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

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Repair guides for gas chainsaws

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

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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…

Read more
Repair difficulty
Time required
 15 minutes or less
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…

Read more
Repair difficulty
Time required
 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…

Read more
Repair difficulty
Time required
 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.

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What are the most common replacement parts for chainsaws?

What are the most common replacement parts for chainsaws?

Learn about the most common replacement parts for chainsaws and how they can help you fix chainsaw problems.…

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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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