Can’t find your part?   Contact us:
+1-309-603-4777
Sears Parts Direct
Orders

  • Keep track of the models you own in your profile

    Sign in or Register to view or add models

Schedule a repair
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.

There are a couple of ways to find the part or diagram you need:

  • Click a diagram to see the parts shown on that diagram.
  • In the search box below, enter all or part of the part number or the part’s name.

Not all parts are shown on the diagrams—those parts are labeled NI, for “not illustrated”.

We encourage you to save the model to your profile, so it’s easy to access parts and manuals for your appliance whenever you log in.

For DIY troubleshooting advice and repair guides, visit our repair help section.

Model diagram and schematic

SEARCH WITHIN THIS MODEL

?

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

Search
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.
$66.96
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.
$62.56
In Stock
Lawn & Garden Equipment Nut 0028137
#179

Cylinder/ignition module diagram

Lawn & garden equipment nut

Part #0028137

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

Decal 0069889
#1

Starter diagram

Decal

Part #0069889

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

Main Casing, Red 6100420
#50

Cylinder/ignition module diagram

Main casing, red

Part #6100420

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

Safety Lever 6074989
#11

Handle/cover diagram

Safety lever

Part #6074989

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

Cylinder (639) 2011755
#130

Cylinder/ignition module diagram

Cylinder (639)

Part #2011755

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

Guide Bar, 33 Cm, (13"), .325", G=1.5 6900342
#200

Cylinder/ignition module diagram

Guide bar, 33 cm, (13"), .325", g=1.5

Part #6900342

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

Sticker "solo 650" (650) 0069601
#77B

Handle/cover diagram

Sticker "solo 650" (650)

Part #0069601

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

Linkage 2036381
#8

Handle/cover diagram

Linkage

Part #2036381

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.

View all

Why won't my chainsaw start?

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

Read more

Why does my chainsaw run roughly?

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

Read more

What should I do if my chainsaw leaks gas?

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

Read more

Repair guides for gas chainsaws

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

View all
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…

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

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.

View all
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.…

Read more
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.…

Read more

Parts & More