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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.

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

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Model diagram and schematic

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ALL PARTS
Showing 10 of 140 parts  |
Grease 18453

#NI13

All parts diagram

Grease

Part #18453

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

Element 07403
#11

Engine housing/fuel tank/oil tank diagram

Element

Part #07403

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

Fuel Cap DA07590
#18

Engine housing/fuel tank/oil tank diagram

Fuel cap

Part #DA07590

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

Pan Head Screw 07597
#3

Engine housing/fuel tank/oil tank diagram

Pan head screw

Part #07597

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

Throttle PS0396701
#5

Handles diagram

Throttle

Part #PS0396701

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

Housing Chain UP06751A
#10

Engine housing/fuel tank/oil tank diagram

Housing chain

Part #UP06751A

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

Cylinder A08666A
#7

Engine internal-oil pump diagram

Cylinder

Part #A08666A

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

Outlet Grommet 06841
Outlet grommet

Part #06841

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

Washer PS84065
#15

Starter-ignition diagram

Washer

Part #PS84065

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

Lawn & Garden Equipment Bearing PS04669
#18

Clutch/hand guard/drive case cover diagram

Lawn & garden equipment bearing

Part #PS04669

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…

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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

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