Lawn & Garden Engine

Model # 143236122 Official Craftsman 4-cycle engine

Here are the diagrams and repair parts for Official Craftsman 143236122 4-cycle engine, as well as links to manuals and error code tables, if available.

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143236122 4-Cycle Engine
Needle Seat 631021
#12

Carburetor diagram

Needle seat

Part #631021

Replaced by #631021B

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Manufacturer substitution
This part replaces 631021. Substitute parts can look different from the original.
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$9.79
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Gasket 27110
#21

Carburetor diagram

Gasket

Part #27110

Replaced by #27110A

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Manufacturer substitution
This part replaces 27110. Substitute parts can look different from the original.
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$2.49
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Starter Rope 590456
#9

Rewind starter diagram

Starter rope

Part #590456

Replaced by #590535

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Manufacturer substitution
This part replaces 590456. Substitute parts can look different from the original.
BEST SELLER
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$2.49
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Fuel Line 29774
#134

Basic engine diagram

Fuel line

Part #29774

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

Carburetor Float 631023
#14

Carburetor diagram

Carburetor float

Part #631023

Replaced by #632019A

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Manufacturer substitution
This part replaces 631023. Substitute parts can look different from the original.
This item is not returnable
$8.89
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In Stock
Troybilt Carburetor Float 631024
#15

Carburetor diagram

Troybilt carburetor float

Part #631024

This item is not returnable
In Stock
Lauson Lawn & Garden Equipment Engine Ignition Coil (replaces 29632, 30546, 30560) 30560A
#13

Magneto diagram

Lauson lawn & garden equipment engine ignition coil (replaces 29632, 30546, 30560)

Part #30560A

$47.09
11% OFF Phone Price : $53.09
In Stock
Screw 28820
#88

Basic engine diagram

Screw

Part #28820

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

Carburetor Lawn & Garden Equipment Engine Gasket 27554
#18

Carburetor diagram

Carburetor lawn & garden equipment engine gasket

Part #27554

This item is not returnable
$2.49
29% OFF Phone Price : $3.49
In Stock
Lawn & Garden Equipment Engine Carburetor Float Pin 631022
#13

Carburetor diagram

Lawn & garden equipment engine carburetor float pin

Part #631022

This item is not returnable
$2.49
29% OFF Phone Price : $3.49
In Stock

Symptoms for gas walk-behind mowers

Choose a symptom to see related walk-behind mower repairs.

Main causes: drive control cable failure, worn or broken drive belt, bad transmission, broken drive wheel…

Main causes: engine needs tune up, dirty or clogged carburetor, damaged flywheel key…

Main causes: dirty carburetor, bad spark plug, clogged air filter, engine choke problems, clogged gas cap vent…

Main causes: damaged cutting blade, loose cutting blade, damaged flywheel key, engine needs tune up…

Main causes: stale gas, engine needs tune up, bad spark plug, dead battery, bad recoil starter, faulty safety switch, ba…

Main causes: uneven wheel height settings, damaged wheel, dull or damaged cutting blade…

Repair guides for gas walk-behind mowers

These step-by-step repair guides will help you safely fix what’s broken on your walk-behind lawn mower.

How to replace a lawn mower spark plug

How to replace a lawn mower spark plug

Take a few minutes to replace the spark plug during your lawn mower's annual tune-up or if the spark plug is burnt or cr…

Repair difficulty
Time required
 15 minutes or less
How to replace a lawn mower drive cable

How to replace a lawn mower drive cable

The drive cable engages the transmission to spin the drive wheels and move the mower across the grass. Replace the drive…

Repair difficulty
Time required
 60 minutes or less
How to replace a lawn mower starter rope

How to replace a lawn mower starter rope

These step-by-step instructions show how to replace a broken starter pull rope on a walk-behind lawn mower.…

Repair difficulty
Time required
 30 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 walk-behind lawn mower.

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.…