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
Tecumseh
Lawn & Garden Engine

Model # HMSK110-159951A Official Tecumseh engine

Here are the diagrams and repair parts for Official Tecumseh HMSK110-159951A 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 179 parts  |
Lawn Mower O-ring 631028
#29

Carburetor 640054 (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
#30

Carburetor 640054 (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
Carburetor 640054
Carburetor

Part #640054

Replaced by #640349

?
Manufacturer substitution
This part replaces 640054. Substitute parts can look different from the original.
BEST SELLER
$66.60 | 
8% OFF Phone Price : $72.60
Back Order
Ignition Key 35593
#328

Craftsman 4-cycle engine mod. 143.991101 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
Cook Top Side Trim Kit Lawn & Garden Equipment Engine Air Filter (replaces 28424l) 28424
#171

Craftsman 4-cycle engine mod. 143.991101 diagram

Cook top side trim kit 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
Float 632019
#28

Carburetor 640054 (71/143) diagram

Float

Part #632019

Replaced by #632019A

?
Manufacturer substitution
This part replaces 632019. 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
Generac Lawn & Garden Equipment Engine Service Manual (replaces 692509, 730546, 740048) 740049
#NI

Craftsman 4-cycle engine mod. 143.991101 diagram

Generac lawn & garden equipment engine service manual (replaces 692509, 730546, 740048)

Part #740049

This item is not returnable
$12.19 | 
14% OFF Phone Price : $14.19
In Stock
Starter 590749
#390

Craftsman 4-cycle engine mod. 143.991101 diagram

Starter

Part #590749

Replaced by #590789

?
Manufacturer substitution
This part replaces 590749. Substitute parts can look different from the original.
$77.19 | 
7% OFF Phone Price : $83.19
In Stock
Lamination 35135
#100

Craftsman 4-cycle engine mod. 143.991101 diagram

Lamination

Part #35135

Replaced by #35135B

?
Manufacturer substitution
This part replaces 35135. Substitute parts can look different from the original.
$58.79 | 
9% OFF Phone Price : $64.79
Back Order
Lawn & Garden Equipment Engine Throttle Control Bracket 34677
#200

Craftsman 4-cycle engine mod. 143.991101 diagram

Lawn & garden equipment engine throttle control bracket

Part #34677

$46.81 | 
11% OFF Phone Price : $52.81
In Stock

RECOMMENDED MAINTENANCE PARTS AND ACCESSORIES

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