Craftsman
Lawn & Garden Engine

Model # 143346042 Official Craftsman 4-cycle engine

Here are the diagrams and repair parts for Official Craftsman 143346042 4-cycle engine, as well as links to manuals and error code tables, if available.

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Showing 10 of 176 parts  |

Lawn Mower O-ring 631028
#25

Replacement parts diagram

Lawn mower o-ring

Part #631028

Replaced by #631028A

?
Manufacturer substitution
This part replaces 631028. Substitute parts can look different from the original.
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$2.49
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Needle Seat 631021
#12

Replacement parts diagram

Needle seat

Part #631021

Replaced by #631021B

?
Manufacturer substitution
This part replaces 631021. Substitute parts can look different from the original.
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$10.11
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Spark Plug 33636
#57

Replacement parts diagram

Spark plug

Part #33636

Replaced by #J19LM

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Manufacturer substitution
This part replaces 33636. Substitute parts can look different from the original.
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Lawn & Garden Equipment Engine Fuel Line Clamp 26460
#104

Replacement parts diagram

Lawn & garden equipment engine fuel line clamp

Part #26460

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Float 632019
#14

Replacement parts diagram

Float

Part #632019

Replaced by #632019A

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Manufacturer substitution
This part replaces 632019. Substitute parts can look different from the original.
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Lawn & Garden Equipment Engine Service Manual (replaces 692509, 730546, 740048) 740049
#NI

Replacement parts diagram

Lawn & garden equipment engine service manual (replaces 692509, 730546, 740048)

Part #740049

This item is not returnable
$12.19
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Carburetor Float 631024
#15

Replacement parts diagram

Carburetor float

Part #631024

This item is not returnable
In Stock
Lawn & Garden Equipment Engine Governor Control Lever Clamp 31335
#5

Replacement parts diagram

Lawn & garden equipment engine governor control lever clamp

Part #31335

This item is not returnable
In Stock
Screw 28763
#105

Replacement parts diagram

Screw

Part #28763

This item is not returnable
In Stock
Lawn & Garden Equipment Engine Throttle Shaft Seal 631183
#18

Replacement parts diagram

Lawn & garden equipment engine throttle shaft seal

Part #631183

This item is not returnable
In Stock

Symptoms for gas walk-behind mowers

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

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

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

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

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

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

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

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 transmission

How to replace a lawn mower transmission

Learn how to replace the transmission on your lawn mower if it's locked up or won't drive the wheels.…

Repair difficulty
Time required
 60 minutes or less
How to rebuild a lawn mower carburetor

How to rebuild a lawn mower carburetor

The carburetor mixes air with fuel to drive the piston. Rebuild the carburetor if it's clogged or leaks.…

Repair difficulty
Time required
 60 minutes or less
How to replace a lawn mower ignition coil on a flathead engine

How to replace a lawn mower ignition coil on a flathead engine

If the spark plug doesn't fire when you try to start the mower, you could have a defective ignition coil. Follow these s…

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.…