Tecumseh
Lawn & Garden Engine

Model # HM80-155162E Official Tecumseh 4-cycle engine

Here are the diagrams and repair parts for Official Tecumseh HM80-155162E 4-cycle engine, as well as links to manuals and error code tables, if available.

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Model diagram and schematic

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ALL PARTS
Showing 10 of 182 parts  |

Lawn Mower O-ring 631028
#25

Carburetor no. 631979 diagram

Lawn mower o-ring

Part #631028

Replaced by #631028A

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Manufacturer substitution
This part replaces 631028. Substitute parts can look different from the original.
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Spark Plug 33636
#65

Replacement parts diagram

Spark plug

Part #33636

Replaced by #861

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Manufacturer substitution
This part replaces 33636. Substitute parts can look different from the original.
This item is not returnable
In Stock
Spark Plug 34251
#65A

Replacement parts diagram

Spark plug

Part #34251

Replaced by #861

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Manufacturer substitution
This part replaces 34251. Substitute parts can look different from the original.
This item is not returnable
In Stock
Needle Seat 631021
#12

Carburetor no. 631979 diagram

Needle seat

Part #631021

Replaced by #631021B

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Manufacturer substitution
This part replaces 631021. Substitute parts can look different from the original.
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Starter Rope 590456
#9

Rewind starter no. 590479 diagram

Starter rope

Part #590456

Replaced by #590535

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Manufacturer substitution
This part replaces 590456. Substitute parts can look different from the original.
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Cook Top Side Trim Kit Lawn & Garden Equipment Engine Air Filter (replaces 28424l) 28424
#67

Replacement parts diagram

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

Part #28424

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Float 632019
#14

Carburetor no. 631979 diagram

Float

Part #632019

Replaced by #632019A

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Manufacturer substitution
This part replaces 632019. Substitute parts can look different from the original.
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Troybilt Lawn & Garden Equipment Engine Carburetor Float Bowl (replaces 631025, 632808) 631867
#16

Carburetor no. 631979 diagram

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

Part #631867

This item is not returnable
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Fuel Tank 34156
#124

Replacement parts diagram

Fuel tank

Part #34156

Replaced by #34186A

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Manufacturer substitution
This part replaces 34156. Substitute parts can look different from the original.
$45.98
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Lawn & Garden Equipment Engine Locking Plate 31588
#121

Replacement parts diagram

Lawn & garden equipment engine locking plate

Part #31588

This item is not returnable
$4.27
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Symptoms for gas walk-behind mowers

Choose a symptom to see related walk-behind mower repairs.

Main causes: engine needs tune up, dirty or clogged carburetor, damaged flywheel key…

Main causes: uneven wheel height settings, damaged wheel, dull or damaged cutting blade…

Main causes: damaged cutting blade, loose cutting blade, damaged flywheel key, engine needs tune up…

Main causes: stale gas, engine needs tune up, bad spark plug, dead battery, bad recoil starter, faulty safety switch, ba…

Main causes: dirty carburetor, bad spark plug, clogged air filter, engine choke problems, clogged gas cap vent…

Main causes: drive control cable failure, worn or broken drive belt, bad transmission, broken drive wheel…

Repair guides for gas walk-behind mowers

These step-by-step repair guides will help you safely fix what’s broken on your walk-behind lawn mower.

How to replace a lawn mower spark plug

How to replace a lawn mower spark plug

Take a few minutes to replace the spark plug during your lawn mower's annual tune-up or if the spark plug is burnt or cr…

Repair difficulty
Time required
 15 minutes or less
How to replace a lawn mower blade

How to replace a lawn mower blade

Check your lawn mower blade regularly and replaced it if it's bent or damaged. …

Repair difficulty
Time required
 15 minutes or less
How to replace a lawn mower flywheel key on a flathead engine

How to replace a lawn mower flywheel key on a flathead engine

When you hit a hard object with your mower, the flywheel can shear to protect more expensive components. Learn how to re…

Repair difficulty
Time required
 45 minutes or less

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

Use the advice and tips in these articles and videos to get the most out of your walk-behind lawn mower.

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.…

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.…