Engine & Drivetrain

Model # 143700-015A Official Craftsman transmission

Here are the diagrams and repair parts for Official Craftsman 143700-015A transmission, as well as links to manuals and error code tables, if available.

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143700-015A Riding Mowers & Tractors
Ball 792077
#40

Replacement parts diagram

Ball

Part #792077

Replaced by #792077A

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Manufacturer substitution
This part replaces 792077. Substitute parts can look different from the original.
This item is not returnable
$3.40
23% OFF Phone Price : $4.40
In Stock
Spring 792079
#42

Replacement parts diagram

Spring

Part #792079

Replaced by #792079

?
Manufacturer substitution
This part replaces 792079. Substitute parts can look different from the original.
This item is not returnable
$3.40
23% OFF Phone Price : $4.40
In Stock
Seal 788069
#47

Replacement parts diagram

Seal

Part #788069

Replaced by #788069

?
Manufacturer substitution
This part replaces 788069. Substitute parts can look different from the original.
This item is not returnable
In Stock
Quad Ring 792001
#45

Replacement parts diagram

Quad ring

Part #792001

Replaced by #792001

?
Manufacturer substitution
This part replaces 792001. Substitute parts can look different from the original.
This item is not returnable
In Stock
Bushing 780105A
#27

Replacement parts diagram

Bushing

Part #780105A

Replaced by #780105A

?
Manufacturer substitution
This part replaces 780105A. Substitute parts can look different from the original.
This item is not returnable
$8.64
10% OFF Phone Price : $9.64
In Stock
Spacer 786072
#4

Replacement parts diagram

Spacer

Part #786072

Replaced by #786072

?
Manufacturer substitution
This part replaces 786072. Substitute parts can look different from the original.
This item is not returnable
In Stock
Screw 792073
#36

Replacement parts diagram

Screw

Part #792073

Replaced by #792073

?
Manufacturer substitution
This part replaces 792073. Substitute parts can look different from the original.
This item is not returnable
$3.40
23% OFF Phone Price : $4.40
In Stock
Gear 778163
#16

Replacement parts diagram

Gear

Part #778163

Replaced by #778208

?
Manufacturer substitution
This part replaces 778163. Substitute parts can look different from the original.
In Stock
Input Shaft 776203
#18

Replacement parts diagram

Input shaft

Part #776203

Replaced by #776203

?
Manufacturer substitution
This part replaces 776203. Substitute parts can look different from the original.
In Stock
Gear 778113A
#19

Replacement parts diagram

Gear

Part #778113A

Replaced by #778113A

?
Manufacturer substitution
This part replaces 778113A. Substitute parts can look different from the original.
$28.64
17% OFF Phone Price : $34.64
In Stock

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 walk-behind mowers

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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How to enjoy all the online benefits we offer on our Sears PartsDirect website

Learn about all the convenient features on our Sears PartsDirect website that make your parts purchases easier.…

Introducing new technical repair content that we’re developing for the Sears Technical Institute

Introducing new technical repair content that we’re developing for the Sears Technical Institute

Learn about Sears Technical Institute and the advanced technical content being developed for aspiring appliance techs.…

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Top questions about Sears and Sears PartsDirect

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