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Craftsman
Lawn & Garden Engine

Model # 143754012 Official Craftsman 4-cycle engine

Here are the diagrams and repair parts for Official Craftsman 143754012 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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Showing 10 of 157 parts  |
Spark Plug 33636
#37

Engine 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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$4.80 | 
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Spark Plug 34251
#37A

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
Needle Seat 631021
#12

Carburetor no. 632284 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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$9.50 | 
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Troybilt Lawn & Garden Equipment Engine Carburetor Gasket (replaces 27141) 26756
#87

Engine diagram

Troybilt lawn & garden equipment engine carburetor gasket (replaces 27141)

Part #26756

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$3.64 | 
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Lamination 34443A
#28

Engine diagram

Lamination

Part #34443A

Replaced by #34443D

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Manufacturer substitution
This part replaces 34443A. Substitute parts can look different from the original.
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$44.07 | 
12% OFF Phone Price : $50.07
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Gasket 27110
#21

Carburetor no. 632284 diagram

Gasket

Part #27110

Replaced by #27110A

?
Manufacturer substitution
This part replaces 27110. Substitute parts can look different from the original.
BEST SELLER
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$2.49 | 
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Float 632019
#14

Carburetor no. 632284 diagram

Float

Part #632019

Replaced by #632019A

?
Manufacturer substitution
This part replaces 632019. Substitute parts can look different from the original.
This item is not returnable
$8.89 | 
10% OFF Phone Price : $9.89
In Stock
Troybilt Lawn & Garden Equipment Engine Oil Seal 27897
#24

Engine diagram

Troybilt lawn & garden equipment engine oil seal

Part #27897

This item is not returnable
$7.02 | 
12% OFF Phone Price : $8.02
In Stock
Troybilt Lawn & Garden Equipment Engine Spark Plug Boot (replaces 27276, Tc-610118) 610118
#29

Engine diagram

Troybilt lawn & garden equipment engine spark plug boot (replaces 27276, tc-610118)

Part #610118

This item is not returnable
$5.24 | 
16% OFF Phone Price : $6.24
In Stock
Generac Lawn & Garden Equipment Engine Stop Wire Terminal 610973
#92

Engine diagram

Generac lawn & garden equipment engine stop wire terminal

Part #610973

This item is not returnable
$4.11 | 
20% OFF Phone Price : $5.11
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