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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, 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.
$65.02
In Stock
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.
$60.73
In Stock
Piston Ring 2048229
#119A

Cylinder/ignition module diagram

Piston ring

Part #2048229

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

Filter Clip 2074946
#158

Cylinder/ignition module diagram

Filter clip

Part #2074946

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

Washer 6042817
#25

Cylinder/ignition module diagram

Washer

Part #6042817

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

Sticker "stop" 0069841
#72

Cylinder/ignition module diagram

Sticker "stop"

Part #0069841

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

Seal 0054265
#16

Cylinder/ignition module diagram

Seal

Part #0054265

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

Gasket-kit-carburetor 0510290
#220A

Cylinder/ignition module diagram

Gasket-kit-carburetor

Part #0510290

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

Screw-driver 0080494
#215

Cylinder/ignition module diagram

Screw-driver

Part #0080494

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

Piston Pin 203124925
#122

Cylinder/ignition module diagram

Piston pin

Part #203124925

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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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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Why does my chainsaw run roughly?

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

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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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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 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…

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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

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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