Tecumseh
Lawn & Garden Engine

Model # TYPE 642-15B Official Tecumseh 4.5-hp outboard motor

Here are the diagrams and repair parts for Official Tecumseh TYPE-642-15B 4.5-hp outboard motor, as well as links to manuals and error code tables, if available.

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Model diagram and schematic

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Showing 10 of 242 parts  |

Float 631023
#14

Carburetor assembly diagram

Float

Part #631023

The manufacturer no longer makes this part, and there's no substitute part

Cover 610118
#43

Engine assembly diagram

Cover

Part #610118

The manufacturer no longer makes this part, and there's no substitute part

Seal 510105
#26

Engine assembly diagram

Seal

Part #510105

The manufacturer no longer makes this part, and there's no substitute part

Clip 631022
#13

Carburetor assembly diagram

Clip

Part #631022

The manufacturer no longer makes this part, and there's no substitute part

Spring 590412
#5

Rewind starter assembly diagram

Spring

Part #590412

The manufacturer no longer makes this part, and there's no substitute part

Eska Boat Motor Gasket 96225
#8

Column assembly diagram

Eska boat motor gasket

Part #96225

The manufacturer no longer makes this part, and there's no substitute part

Tecumseh Boat Motor Nut 2213
#10

Power head assembly diagram

Tecumseh boat motor nut

Part #2213

The manufacturer no longer makes this part, and there's no substitute part

Preway Boat Motor Oil Seal 96009
#17

Gear housing assembly diagram

Preway boat motor oil seal

Part #96009

The manufacturer no longer makes this part, and there's no substitute part

Preway Roll Pin 7058
#20

Gear housing assembly diagram

Preway roll pin

Part #7058

The manufacturer no longer makes this part, and there's no substitute part

Preway Boat Motor Oil Seal 96516
#10

Gear housing assembly diagram

Preway boat motor oil seal

Part #96516

The manufacturer no longer makes this part, and there's no substitute part

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.

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Top questions about Sears and Sears PartsDirect

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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.…