Craftsman
Lawn & Garden Engine

Model # 143526021 Official Craftsman 4-cycle engine

Here are the diagrams and repair parts for Official Craftsman 143526021 4-cycle engine, 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 203 parts  |

Fuel Line 30706
#78

Basic engine diagram

Fuel line

Part #30706

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

Breather Element Air Filter 28424
#40

Basic engine diagram

Breather element air filter

Part #28424

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

Screw 28820
#88

Basic engine diagram

Screw

Part #28820

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

Flat Washer 30590
#151

Basic engine diagram

Flat washer

Part #30590

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

Gasket Set 30732
#169

Basic engine diagram

Gasket set

Part #30732

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

Spring 27114
#8

Carburetor diagram

Spring

Part #27114

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

Shutoff Valv 29683
#117

Basic engine diagram

Shutoff valv

Part #29683

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

Gov Rod 30699
#63

Basic engine diagram

Gov rod

Part #30699

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

Adj Bracket 30205
#55

Basic engine diagram

Adj bracket

Part #30205

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

Bolt 30845
#42

Basic engine diagram

Bolt

Part #30845

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 lawn & garden engines

Use the advice and tips in these articles and videos to get the most out of your chainsaw.

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....

What are the main components of a lawn mower?

What are the main components of a lawn mower?

Learn about the main parts of a lawn mower and when to replace parts....