Engine & Drivetrain

Model # 143745-A Official Craftsman transmission

Here are the diagrams and repair parts for Official Craftsman 143745-A transmission, as well as links to manuals and error code tables, if available.

By Schematic
By Part
SELECT DIAGRAM
?

This is the number corresponding to the part on the diagram / schematic

Browse Parts for
143745-A Riding Mowers & Tractors
Ball 792077
#40

Replacement parts diagram

Ball

Part #792077

Replaced by #792077A

?
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
Gear 778126A
#14

Replacement parts diagram

Gear

Part #778126A

Replaced by #778126A

?
Manufacturer substitution
This part replaces 778126A. Substitute parts can look different from the original.
In Stock
Output Shaft 776217
#3

Replacement parts diagram

Output shaft

Part #776217

Replaced by #776217

?
Manufacturer substitution
This part replaces 776217. Substitute parts can look different from the original.
$108.19
10% OFF Phone Price : $120.19
In Stock
Spacer 786071
#17

Replacement parts diagram

Spacer

Part #786071

Replaced by #786071

?
Manufacturer substitution
This part replaces 786071. Substitute parts can look different from the original.
This item is not returnable
In Stock
Cover 772083A
#2

Replacement parts diagram

Cover

Part #772083A

Replaced by #772083A

?
Manufacturer substitution
This part replaces 772083A. Substitute parts can look different from the original.
In Stock

Most common symptoms to help you fix your stand mixers

Choose a symptom to see related stand mixer repairs.

Main causes: phase control board failure, wiring connection problem, faulty electronic control board…

Main cause: worn carbon motor brushes…

Main cause: attachment clearance setting needs adjustment…

Main causes: bad wiring connections, faulty speed control plate, electronic control board failure…

Main causes: bad lubricating grease, mixer sitting idle for weeks at a time, mixer running constantly for more than 30 m…

Main causes: bad worm gear, damaged planetary gear assembly…

Main causes: lack of electrical power, wiring failure, worn carbon motor brushes, bad drive motor, tripped overload swit…

Most common repair guides to help fix your stand mixers

These step-by-step repair guides will help you safely fix what’s broken on your stand mixer.

How to replace a stand mixer worm gear

How to replace a stand mixer worm gear

Here’s how to replace the worm gear in your stand mixer if it’s worn or damaged.…

Repair difficulty
Time required
 30 minutes or less
How to replace a stand mixer phase control board

How to replace a stand mixer phase control board

The phase control board works with the governor and control plate to control motor speed. Replace the phase control boar…

Repair difficulty
Time required
 30 minutes or less
How to replace stand mixer motor brushes

How to replace stand mixer motor brushes

If the carbon brushes are worn and damaged, replace them using these steps.…

Repair difficulty
Time required
 15 minutes or less

Effective articles & videos to help repair your stand mixers

Use the advice and tips in these articles and videos to get the most out of your stand mixer.

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

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.…

5 secrets for getting great stand mixer results

5 secrets for getting great stand mixer results

Find out five tips and techniques to help get the most out of your stand mixer.…

Easy DIY stand mixer repairs

Easy DIY stand mixer repairs

Learn about some easy stand mixer repairs you can do yourself.…