Craftsman
Lawn & Garden Engine

Model # 143731012 Official Craftsman 4-cycle engine

Here are the diagrams and repair parts for Official Craftsman 143731012 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 164 parts  |

Spark Plug 33636
#37

Replacement parts diagram

Spark plug

Part #33636

Replaced by #J19LM

?
Manufacturer substitution
This part replaces 33636. Substitute parts can look different from the original.
BEST SELLER
This item is not returnable
$4.80
17% OFF Phone Price : $5.80
In Stock
Lawn & Garden Equipment Engine Fuel Line (replaces 14306, 34357) 29774
#118

Replacement parts diagram

Lawn & garden equipment engine fuel line (replaces 14306, 34357)

Part #29774

BEST SELLER
This item is not returnable
$5.99
14% OFF Phone Price : $6.99
In Stock
Lawn & Garden Equipment Engine Fuel Line Clamp 26460
#119

Replacement parts diagram

Lawn & garden equipment engine fuel line clamp

Part #26460

BEST SELLER
This item is not returnable
$2.49
29% OFF Phone Price : $3.49
In Stock
Starter Rope 590386
#9

Rewind starter diagram

Starter rope

Part #590386

Replaced by #590535

?
Manufacturer substitution
This part replaces 590386. Substitute parts can look different from the original.
BEST SELLER
This item is not returnable
$2.49
29% OFF Phone Price : $3.49
In Stock
Repair 631893
#29

Replacement parts diagram

Repair

Part #631893

Replaced by #631893A

?
Manufacturer substitution
This part replaces 631893. Substitute parts can look different from the original.
In Stock
Breather Gasket 27272
#77

Replacement parts diagram

Breather gasket

Part #27272

Replaced by #27272A

?
Manufacturer substitution
This part replaces 27272. Substitute parts can look different from the original.
This item is not returnable
$3.64
23% OFF MSRP : $4.70
In Stock
Control Assembly 33858A
#53

Replacement parts diagram

Control assembly

Part #33858A

Replaced by #36677

?
Manufacturer substitution
This part replaces 33858A. Substitute parts can look different from the original.
$39.34
14% OFF MSRP : $46.00
In Stock
Screw 28820
#79

Replacement parts diagram

Screw

Part #28820

Replaced by #651081

?
Manufacturer substitution
This part replaces 28820. Substitute parts can look different from the original.
This item is not returnable
In Stock
Lawn & Garden Equipment Engine Carburetor O-ring 630740
#13

Replacement parts diagram

Lawn & garden equipment engine carburetor o-ring

Part #630740

This item is not returnable
$3.64
23% OFF MSRP : $4.70
In Stock
Lawn & Garden Equipment Engine Throttle Shaft Seal 631183
#28

Replacement parts diagram

Lawn & garden equipment engine throttle shaft seal

Part #631183

This item is not returnable
In Stock

Repair guides for side-by-side refrigerators

How to replace a foamed-in-place door gasket in a side-by-side refrigerator

How to replace a foamed-in-place door gasket in a side-by-side refrigerator

The door gasket seals the gap around the door to keep the cold air in and the warm air out. Replace a worn or damaged do…

Repair difficulty
Time required
 30 minutes or less
How to replace a refrigerator water valve

How to replace a refrigerator water valve

Replace the water valve that feeds water to the ice maker and water dispenser if it no longer controls the flow of water…

Repair difficulty
Time required
 15 minutes or less
How to replace a defrost sensor in a side-by-side refrigerator

How to replace a defrost sensor in a side-by-side refrigerator

If frost is building up in the freezer of your side-by-side refrigerator, the defrost sensor could be at fault. You can …

Repair difficulty
Time required
 45 minutes or less

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

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.…