Can’t find your part?   Contact us:
+1-309-603-4777
Sears Parts Direct
Orders

  • Keep track of the models you own in your profile

    Sign in or Register to view or add models

Schedule a repair
Craftsman
Lawn & Garden Engine

Model # 143744042 Official Craftsman 4-cycle engine

Here are the diagrams and repair parts for Official Craftsman 143744042 4-cycle 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
ALL PARTS
Showing 10 of 172 parts  |
Troybilt Lawn & Garden Equipment Engine Air Filter 35066
#83

Replacement parts diagram

Troybilt lawn & garden equipment engine air filter

Part #35066

BEST SELLER
This item is not returnable
$4.79 | 
17% OFF Phone Price : $5.79
In Stock
Lawn Mower O-ring 631028
#25

Carburetor 631921 (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
Needle Seat 631021
#12

Carburetor 631921 (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
$9.79 | 
9% OFF Phone Price : $10.79
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) 590535
#9

Rewind starter diagram

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 | 
29% OFF Phone Price : $3.49
In Stock
Carburetor Float 631023
#14

Carburetor 631921 (71/143) diagram

Carburetor float

Part #631023

Replaced by #632019A

?
Manufacturer substitution
This part replaces 631023. 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
Troybilt Lawn & Garden Equipment Engine Carburetor Float Bowl (replaces 631025, 632808) 631867
#16

Carburetor 631921 (71/143) diagram

Troybilt lawn & garden equipment engine carburetor float bowl (replaces 631025, 632808)

Part #631867

This item is not returnable
$3.49 | 
22% OFF Phone Price : $4.49
In Stock
Throttle Spring 631279
#2

Carburetor 631921 (71/143) diagram

Throttle spring

Part #631279

Replaced by #631767

?
Manufacturer substitution
This part replaces 631279. Substitute parts can look different from the original.
This item is not returnable
$2.49 | 
29% OFF Phone Price : $3.49
In Stock
Filter 3331
#85

Replacement parts diagram

Filter

Part #3331

Replaced by #36693

?
Manufacturer substitution
This part replaces 3331. Substitute parts can look different from the original.
This item is not returnable
$13.69 | 
13% OFF Phone Price : $15.69
In Stock
Lauson Condenser (replaces 16340002, 30548) 30548B
#13

Magneto diagram

Lauson condenser (replaces 16340002, 30548)

Part #30548B

$8.40
In Stock
Generac Lawn & Garden Equipment Engine Governor Control Lever Clamp 31335
#139

Replacement parts diagram

Generac lawn & garden equipment engine governor control lever clamp

Part #31335

This item is not returnable
$2.16
In Stock

RECOMMENDED MAINTENANCE PARTS AND ACCESSORIES

Repair guides for side-by-side refrigerators

How to replace an ice dispenser motor in a side-by-side refrigerator

How to replace an ice dispenser motor in a side-by-side refrigerator

If your side-by-side refrigerator isn’t churning out ice, replacing the motor could fix the problem. These steps explain…

Read more
Repair difficulty
Time required
 45 minutes or less
How to replace a defrost heater in a side-by-side refrigerator

How to replace a defrost heater in a side-by-side refrigerator

If frost is building up in the freezer of your side-by-side refrigerator, the defrost heater could be faulty. Follow the…

Read more
Repair difficulty
Time required
 45 minutes or less
How to replace an evaporator fan motor in a side-by-side refrigerator

How to replace an evaporator fan motor in a side-by-side refrigerator

If your refrigerator isn't as cold as it should be, it could be that the evaporator fan motor isn't circulating air. Thi…

Read more
Repair difficulty
Time required
 60 minutes or less

Effective articles & videos to help repair your lawn & garden engines

View all
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.…

Read more
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.…

Read more

Parts & More