Homelite
Gas Chainsaw

Model # UT10870 Official Homelite chainsaw

Here are the diagrams and repair parts for Official Homelite UT10870 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 140 parts  |

Ring 64813
#10

Engine internal-oil pump diagram

Ring

Part #64813

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

Chain H1N7245AH

#NI05

All parts diagram

Chain

Part #H1N7245AH

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

Pivot Lh 07393
Pivot lh

Part #07393

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

Kit PA00979
#13

Engine internal-oil pump diagram

Kit

Part #PA00979

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

Chainsaw Fuel Filter PS03380
#17

Engine housing/fuel tank/oil tank diagram

Chainsaw fuel filter

Part #PS03380

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

Piston And UP06971A
#8

Engine internal-oil pump diagram

Piston and

Part #UP06971A

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

Bearing Case 04919
#17

Engine internal-oil pump diagram

Bearing case

Part #04919

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

Oil Cap DA07591
#19

Engine housing/fuel tank/oil tank diagram

Oil cap

Part #DA07591

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

Needle Bearing PS04569
#16

Clutch/hand guard/drive case cover diagram

Needle bearing

Part #PS04569

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

Choke Rod PS06280
Choke rod

Part #PS06280

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.

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

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

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

Repair guides for gas chainsaws

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

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 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…

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…

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.

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.…

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.…