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Craftsman
Lawn & Garden Engine

Model # 143973512 Official Craftsman engine

Here are the diagrams and repair parts for Official Craftsman 143973512 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 122 parts  |
Troybilt Lawn & Garden Equipment Engine Air Filter 35066
#245

Engine (71/143) 143.973512 diagram

Troybilt lawn & garden equipment engine air filter

Part #35066

BEST SELLER
This item is not returnable
$4.67 | 
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In Stock
Lawn Mower O-ring 631028
#29

Carburetor 640026 (71/143) 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
#30

Carburetor 640026 (71/143) 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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$9.50 | 
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Troybilt Lawn & Garden Equipment Engine Carburetor Rebuild Kit (replaces 632760a, 632809) 632760B
#(NI)

Carburetor 640026 (71/143) diagram

Troybilt lawn & garden equipment engine carburetor rebuild kit (replaces 632760a, 632809)

Part #632760B

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$22.91 | 
21% OFF Phone Price : $28.91
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Lamination 34443A
#100

Engine (71/143) 143.973512 diagram

Lamination

Part #34443A

Replaced by #34443D

?
Manufacturer substitution
This part replaces 34443A. Substitute parts can look different from the original.
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$44.07 | 
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In Stock
Gasket 27110
#44

Carburetor 640026 (71/143) diagram

Gasket

Part #27110

Replaced by #27110A

?
Manufacturer substitution
This part replaces 27110. Substitute parts can look different from the original.
BEST SELLER
This item is not returnable
$2.49 | 
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Troybilt Lawn & Garden Equipment Engine Air Filter Collar Gasket 34338
#239

Engine (71/143) 143.973512 diagram

Troybilt lawn & garden equipment engine air filter collar gasket

Part #34338

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$2.49 | 
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Cap 36246
#301

Engine (71/143) 143.973512 diagram

Cap

Part #36246

Replaced by #37844

?
Manufacturer substitution
This part replaces 36246. Substitute parts can look different from the original.
BEST SELLER
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$6.69 | 
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Float 632019
#28

Carburetor 640026 (71/143) 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
#75

Engine (71/143) 143.973512 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

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