Craftsman
Lawn & Garden Engine

Model # 143977001 Official Craftsman engine

Here are the diagrams and repair parts for Official Craftsman 143977001 engine, as well as links to manuals and error code tables, if available.

There are a couple of ways to find the part or diagram you need:

  • Click a diagram to see the parts shown on that diagram.
  • In the search box below, enter all or part of the part number or the part’s name.

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

We encourage you to save the model to your profile, so it’s easy to access parts and manuals for your appliance whenever you log in.

For DIY troubleshooting advice and repair guides, visit our repair help section.

Model diagram and schematic

SEARCH WITHIN THIS MODEL

?

This is the number corresponding to the part on the diagram / schematic

Search
PART LIST
Showing 10 of 214 parts  |

Lawn & Garden Equipment Engine Carburetor Float Bowl Gasket (replaces 485-862)
#29

Carburetor 632371a (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.
BEST SELLER
This item is not returnable
$2.49
29% OFF Phone Price : $3.49
In Stock
Lawn & Garden Equipment Engine Carburetor Needle Valve Kit (replaces 525-212)
#30

Carburetor 632371a (71/143) 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
$11.26
15% OFF Phone Price : $13.26
In Stock
Lawn & Garden Equipment Engine Ignition Coil (replaces 440-505)
#100

Engine 143.977001 (71/143) diagram

Lamination

Part #34443A

Replaced by #34443D

?
Manufacturer substitution
This part replaces 34443A. Substitute parts can look different from the original.
BEST SELLER
$45.11
10% OFF Phone Price : $50.11
In Stock
Snowblower Ignition Key (replaces 35593, TC-35062)
#328

Engine 143.977001 (71/143) diagram

Ignition key

Part #35593

Replaced by #35062

?
Manufacturer substitution
This part replaces 35593. Substitute parts can look different from the original.
BEST SELLER
This item is not returnable
$4.09
20% OFF Phone Price : $5.09
In Stock
Lawn & Garden Equipment Engine Carburetor Float Bowl Washer (replaces 49-084)
#44

Carburetor 632371a (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
29% OFF Phone Price : $3.49
In Stock
Lawn & Garden Equipment Engine Fuel Line (replaces 32180, 32180A, 32180B, 500236, TC-32180C)
#351

Engine 143.977001 (71/143) diagram

Lawn & garden equipment engine fuel line (replaces 32180, 32180a, 32180b, 500236, tc-32180c)

Part #32180C

BEST SELLER
This item is not returnable
$4.37
45% OFF MSRP : $7.90
In Stock
Lawn & Garden Equipment Engine Fuel Tank Cap (replaces 35355, 35650)
#301

Engine 143.977001 (71/143) diagram

Lawn & garden equipment engine fuel tank cap

Part #35355

Replaced by #37845

?
Manufacturer substitution
This part replaces 35355. Substitute parts can look different from the original.
BEST SELLER
$9.59
9% OFF Phone Price : $10.59
In Stock
Lawn & Garden Equipment Engine Air Filter (replaces 28424L)
#171

Engine 143.977001 (71/143) diagram

Lawn & garden equipment engine air filter (replaces 28424l)

Part #28424

BEST SELLER
This item is not returnable
$4.14
19% OFF Phone Price : $5.14
In Stock
Lawn & Garden Equipment Engine Recoil Starter Rope, 98-in (replaces 1258, 28288, 28358, 28528, 30971, 31285, 31395, 31396, 31696, 590451A, 590456, 590527, 730608, 740032)
Lawn & garden equipment engine recoil starter rope, 98-in (replaces 1258, 28288, 28358, 28528, 30971, 31285, 31395, 31396, 31696, 590451a, 590456, 590527, 730608, 740032)

Part #590535

BEST SELLER
This item is not returnable
$2.49
73% OFF Was : $9.19
In Stock
Lawn & Garden Equipment Engine Carburetor Primer Assembly (replaces 570682, TC-570682A)
#350

Engine 143.977001 (71/143) diagram

Primer

Part #570682

Replaced by #570682A

?
Manufacturer substitution
This part replaces 570682. Substitute parts can look different from the original.
BEST SELLER
$11.79
15% OFF Phone Price : $13.79
In Stock

Repair guides for electric wall ovens

How to replace a wall oven broil element
June 01, 2015

How to replace a wall oven broil element

Follow these step-by-step instructions to replace the broiler element in an electric oven.…

Repair difficulty
Time required
 15 minutes or less
How to replace a temperature sensor on an electric wall oven
June 01, 2015

How to replace a temperature sensor on an electric wall oven

These step-by-step instructions guide you through replacing a temperature sensing probe on an electric wall oven.…

Repair difficulty
Time required
 15 minutes or less
How to replace a wall oven hidden bake element
June 01, 2015

How to replace a wall oven hidden bake element

These step-by-step instructions guide you through replacing the hidden bake element.…

Repair difficulty
Time required
 30 minutes or less

Articles and videos common to all lawn & garden engines

Top questions about Sears and Sears PartsDirect
June 29, 2022

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?
June 07, 2022

What are the main components of a lawn mower?

Learn about the main parts of a lawn mower and when to replace parts.…