Can’t find your part?   Contact us:
+1-309-603-4777
Sears Parts Direct
Tips to find your model number
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 # 143721012 Official Craftsman 4-cycle engine

Here are the diagrams and repair parts for Official Craftsman 143721012 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 161 parts  |
Starter Rope 590386
#9

Rewind starter diagram

Starter rope

Part #590386

Replaced by #590535

?
Manufacturer substitution
This part replaces 590386. 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
Generac Lawn & Garden Equipment Engine Fuel Line (replaces 14306, 34357) 29774
#118

Replacement parts diagram

Generac lawn & garden equipment engine fuel line (replaces 14306, 34357)

Part #29774

BEST SELLER
This item is not returnable
$5.99 | 
14% OFF Phone Price : $6.99
In Stock
Troybilt Lawn & Garden Equipment Engine Fuel Line Clamp 26460
#119

Replacement parts diagram

Troybilt lawn & garden equipment engine fuel line clamp

Part #26460

BEST SELLER
This item is not returnable
$2.49 | 
29% OFF Phone Price : $3.49
In Stock
Generac Lawn & Garden Equipment Engine Stop Wire Terminal 610973
#56

Replacement parts diagram

Generac lawn & garden equipment engine stop wire terminal

Part #610973

This item is not returnable
$4.11 | 
20% OFF Phone Price : $5.11
In Stock
Carburetor 632208
Carburetor

Part #632208

Replaced by #632615

?
Manufacturer substitution
This part replaces 632208. Substitute parts can look different from the original.
$96.19 | 
11% OFF Phone Price : $108.19
In Stock
Lawn & Garden Equipment Throttle Shaft Return Spring (replaces 630731, 631279, 631279a, 631279l, 632016) 631767
#2

Replacement parts diagram

Lawn & garden equipment throttle shaft return spring (replaces 630731, 631279, 631279a, 631279l, 632016)

Part #631767

This item is not returnable
$2.49 | 
29% OFF Phone Price : $3.49
In Stock
Control Assembly 33858A
#53

Replacement parts diagram

Control assembly

Part #33858A

Replaced by #36677

?
Manufacturer substitution
This part replaces 33858A. Substitute parts can look different from the original.
$39.34 | 
13% OFF Phone Price : $45.34
In Stock
Generac Lawn & Garden Equipment Engine Nut 29752
Generac lawn & garden equipment engine nut

Part #29752

This item is not returnable
$2.16
In Stock
Lauson Lawn & Garden Equipment Engine Carburetor Diaphragm 630978
#22

Replacement parts diagram

Lauson lawn & garden equipment engine carburetor diaphragm

Part #630978

This item is not returnable
$6.79 | 
13% OFF Phone Price : $7.79
In Stock
Troybilt Lawn & Garden Equipment Screw 650451
#48

Replacement parts diagram

Troybilt lawn & garden equipment screw

Part #650451

This item is not returnable
$2.16
In Stock

RECOMMENDED MAINTENANCE PARTS AND ACCESSORIES

Symptoms for electric water heaters

Why does my water heater's heating element fail often?

Main causes: excessive tank sediment, high voltage supply…

Read more

Why does the temperature of my hot water fluctuate?

Main causes: thermostats need adjustment, bad heating elements, faulty thermostats, tank sediment build-up, broken dip t…

Read more

Repair guides for electric water heaters

How to replace a water heater element

How to replace a water heater element

If your water heater runs out of hot water quickly and one of the two heating elements has failed, replace the element f…

Read more
Repair difficulty
Time required
 30 minutes or less
How to replace an electric water heater thermostat

How to replace an electric water heater thermostat

If the water temperature fluctuates or you don't get enough hot water, follow these instructions to replace your water h…

Read more
Repair difficulty
Time required
 30 minutes or less
How to replace a water heater temperature and pressure (T&P) relief valve

How to replace a water heater temperature and pressure (T&P) relief valve

Replace a broken temperature/pressure (T&P) relief valve on an electric water heater using these instructions.…

Read more
Repair difficulty
Time required
 15 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