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Craftsman
Lawn & Garden Engine

Model # 143784172 Official Craftsman 4-cycle engine

Here are the diagrams and repair parts for Official Craftsman 143784172 4-cycle engine, as well as links to manuals and error code tables, if available.

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Not all parts are shown on the diagrams—those parts are labeled NI, for “not illustrated”.

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Model diagram and schematic

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ALL PARTS
Showing 10 of 155 parts  |
Needle Seat 631021
#12

Carburetor diagram

Needle seat

Part #631021

Replaced by #631021B

?
Manufacturer substitution
This part replaces 631021. Substitute parts can look different from the original.
BEST SELLER
This item is not returnable
$10.12 | 
17% OFF Phone Price : $12.12
In Stock
Spark Plug 34251
#196

Engine diagram

Spark plug

Part #34251

Replaced by #J19LM

?
Manufacturer substitution
This part replaces 34251. 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
Starter 590642
Starter

Part #590642

Replaced by #590785

?
Manufacturer substitution
This part replaces 590642. Substitute parts can look different from the original.
BEST SELLER
$30.47 | 
14% OFF Phone Price : $35.47
In Stock
Float 632019
#14

Carburetor diagram

Float

Part #632019

Replaced by #632019A

?
Manufacturer substitution
This part replaces 632019. Substitute parts can look different from the original.
BEST SELLER
This item is not returnable
$8.89 | 
10% OFF Phone Price : $9.89
In Stock
Lawn & Garden Equipment Engine Fuel Line (replaces 30241, 430217, 503-1199, 503-1577, Tc-30962) 30962
#254

Engine diagram

Lawn & garden equipment engine fuel line (replaces 30241, 430217, 503-1199, 503-1577, tc-30962)

Part #30962

BEST SELLER
This item is not returnable
$6.76 | 
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In Stock
Lawn & Garden Equipment Engine Service Manual (replaces 692509, 730546, 740048) 740049

#NI

All parts diagram

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

Part #740049

This item is not returnable
$12.19 | 
14% OFF Phone Price : $14.19
In Stock
Lawn & Garden Equipment Engine Carburetor Rebuild Kit 31840
#32

Carburetor diagram

Lawn & garden equipment engine carburetor rebuild kit

Part #31840

This item is not returnable
$22.60 | 
18% OFF Phone Price : $27.60
In Stock
Screw 650884
#274

Engine diagram

Screw

Part #650884

Replaced by #650926

?
Manufacturer substitution
This part replaces 650884. Substitute parts can look different from the original.
This item is not returnable
$2.16
In Stock
Carburetor Float 631024
#15

Carburetor diagram

Carburetor float

Part #631024

This item is not returnable
$2.16
In Stock
Starter Handle 590452
#13

Rewind starter diagram

Starter handle

Part #590452

Replaced by #590701

?
Manufacturer substitution
This part replaces 590452. Substitute parts can look different from the original.
This item is not returnable
$7.80 | 
11% OFF Phone Price : $8.80
In Stock

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