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
Tecumseh
Lawn & Garden Engine

Model # LH318SA-156554 Official Tecumseh engine

Here are the diagrams and repair parts for Official Tecumseh LH318SA-156554 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 215 parts  |
Needle Seat 631021
#30

Carburetor 640052 (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
$9.50 | 
10% OFF Phone Price : $10.50
In Stock
Needle Valve 631021A
#30

Carburetor assembly diagram

Needle valve

Part #631021A

Replaced by #631021B

?
Manufacturer substitution
This part replaces 631021A. Substitute parts can look different from the original.
BEST SELLER
This item is not returnable
$9.50 | 
10% OFF Phone Price : $10.50
In Stock
Troybilt Lawn & Garden Equipment Engine Carburetor Rebuild Kit (replaces 632760a, 632809) 632760B
Troybilt lawn & garden equipment engine carburetor rebuild kit (replaces 632760a, 632809)

Part #632760B

BEST SELLER
$22.91 | 
21% OFF Phone Price : $28.91
In Stock
Craftsman Lawn & Garden Equipment Engine Carburetor (replaces 640052, 640054) 640349
#0

Carburetor assembly diagram

Craftsman lawn & garden equipment engine carburetor (replaces 640052, 640054)

Part #640349

BEST SELLER
$66.60 | 
8% OFF Phone Price : $72.60
In Stock
Carburetor 640052
Carburetor

Part #640052

Replaced by #640349

?
Manufacturer substitution
This part replaces 640052. Substitute parts can look different from the original.
BEST SELLER
$66.60 | 
8% OFF Phone Price : $72.60
In Stock
Gasket 27110
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
Snowblower Ignition Key (replaces 35593, Tc-35062) 35062
#328

Engine diagram

Snowblower ignition key (replaces 35593, tc-35062)

Part #35062

BEST SELLER
This item is not returnable
$4.09 | 
20% OFF Phone Price : $5.09
Back Order
Lawn & Garden Equipment Engine Fuel Tank Cap 35355
#301

Engine 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
Cook Top Side Trim Kit Lawn & Garden Equipment Engine Air Filter (replaces 28424l) 28424
#171

Engine diagram

Cook top side trim kit lawn & garden equipment engine air filter (replaces 28424l)

Part #28424

This item is not returnable
$4.14 | 
19% OFF Phone Price : $5.14
In Stock
Lawn & Garden Equipment Engine Throttle Control Knob 35440
#215

Engine diagram

Lawn & garden equipment engine throttle control knob

Part #35440

This item is not returnable
$4.14 | 
19% OFF Phone Price : $5.14
In Stock

RECOMMENDED MAINTENANCE PARTS AND ACCESSORIES

Repair guides for front-engine lawn tractors

How to replace a ground drive belt on a riding lawn mower

How to replace a ground drive belt on a riding lawn mower

Replace the ground drive belt if it's broken or too worn to spin the transaxle pulley.…

Read more
Repair difficulty
Time required
 45 minutes or less
How to replace a blade clutch cable on a riding lawn mower

How to replace a blade clutch cable on a riding lawn mower

If the blades don't spin on your riding mower when you shift the lever, the blade clutch cable could be broken. Here’s h…

Read more
Repair difficulty
Time required
 30 minutes or less
How to replace a riding lawn mower blade drive belt

How to replace a riding lawn mower blade drive belt

Replace the blade drive belt if it's broken or won't spin the cutting blades because of wear.…

Read more
Repair difficulty
Time required
 45 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