Tecumseh
Lawn & Garden Engine

Model # HM100-159096L Official Tecumseh 4-cycle engine

Here are the diagrams and repair parts for Official Tecumseh HM100-159096L 4-cycle engine, as well as links to manuals and error code tables, if available.

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Showing 10 of 190 parts  |

Needle Seat 631021
#12

Carburetor no. 632370 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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Rope 590451A
#9

Rewind starter no. 590630 diagram

Rope

Part #590451A

Replaced by #590535

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Manufacturer substitution
This part replaces 590451A. Substitute parts can look different from the original.
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Troybilt Lawn & Garden Equipment Engine Fuel Line Clamp 26460
#178

Replacement parts diagram

Troybilt lawn & garden equipment engine fuel line clamp

Part #26460

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Gasket 27110
#21

Carburetor no. 632370 diagram

Gasket

Part #27110

Replaced by #27110A

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Manufacturer substitution
This part replaces 27110. Substitute parts can look different from the original.
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Primer 570682
#131

Replacement parts diagram

Primer

Part #570682

Replaced by #570682A

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Manufacturer substitution
This part replaces 570682. 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
#106

Replacement parts diagram

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

Part #28424

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Cook Top Side Trim Kit Lawn & Garden Equipment Engine Carburetor Manifold Gasket 33263
#115

Replacement parts diagram

Cook top side trim kit lawn & garden equipment engine carburetor manifold gasket

Part #33263

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Troybilt Lawn & Garden Equipment Engine Spark Plug Boot (replaces 27276, Tc-610118) 610118
#82A

Replacement parts diagram

Troybilt lawn & garden equipment engine spark plug boot (replaces 27276, tc-610118)

Part #610118

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Lauson Lawn & Garden Equipment Engine Carburetor Rebuild Kit 632347
#28

Carburetor no. 632370 diagram

Lauson lawn & garden equipment engine carburetor rebuild kit

Part #632347

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Lawn & Garden Equipment Engine Recoil Starter Handle 590574
Lawn & garden equipment engine recoil starter handle

Part #590574

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Symptoms for gas walk-behind mowers

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

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

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

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

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

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 drive cable

How to replace a lawn mower drive cable

The drive cable engages the transmission to spin the drive wheels and move the mower across the grass. Replace the drive…

Repair difficulty
Time required
 60 minutes or less
How to replace a lawn mower starter rope

How to replace a lawn mower starter rope

These step-by-step instructions show how to replace a broken starter pull rope on a walk-behind lawn mower.…

Repair difficulty
Time required
 30 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.…