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

  • Keep track of the models you own in your profile

    Sign in or Register to view or add models

Schedule a repair
Craftsman
Lawn & Garden Engine

Model # 143105121 Official Craftsman 4-cycle gas engine

Here are the diagrams and repair parts for Official Craftsman 143105121 4-cycle gas 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 231 parts  |
Gasket 27110
#20

Carburetor no. 29993 (lmg-154) diagram

Gasket

Part #27110

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

Breather Element Air Filter 28424
#55

Basic engine diagram

Breather element air filter

Part #28424

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

Gasket 27930
#91

Basic engine diagram

Gasket

Part #27930

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

Gear Assembly 30117
#111

Basic engine diagram

Gear assembly

Part #30117

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

Tube 27627
#57

Basic engine diagram

Tube

Part #27627

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

Spool 30116
#113

Basic engine diagram

Spool

Part #30116

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

Valve Spring 27881
#8

Basic engine diagram

Valve spring

Part #27881

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

Needle 27112
#7

Carburetor no. 29993 (lmg-154) diagram

Needle

Part #27112

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

Fitting 28584
#116

Basic engine diagram

Fitting

Part #28584

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

/carb Float 27105
#14

Carburetor no. 29993 (lmg-154) diagram

/carb float

Part #27105

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

Effective articles & videos to help repair your lawn & garden engines

View all
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
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.…

Read more

Parts & More

Tips to find your model number

Product type
Select appliance
Dropdown Icon

Model numbers typically look like this:

Model Finder Help 1Model Finder Help 2