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Troybilt
Gas Walk-Behind Mower

Model # 12A-753B063 Official Troybilt lawn mower

Here are the diagrams and repair parts for Official Troybilt 12A-753B063 lawn mower, as well as links to manuals and error code tables, if available.

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Owner’s manual
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Model diagram and schematic

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ALL PARTS
Showing 10 of 348 parts  |
Brake Pad 799021
#38

Peerless transaxle diagram

Brake pad

Part #799021

Replaced by #799021

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Manufacturer substitution
This part replaces 799021. Substitute parts can look different from the original.
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$8.91 | 
10% OFF Phone Price : $9.91
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Scr Car 5/16 GW-90077
#60

Mower deck assembly diagram

Scr car 5/16

Part #GW-90077

Replaced by #710-0451

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Manufacturer substitution
This part replaces GW-90077. Substitute parts can look different from the original.
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This item is not returnable
$5.42 | 
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Plate 790007
#37

Peerless transaxle diagram

Plate

Part #790007

Replaced by #790007

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Manufacturer substitution
This part replaces 790007. Substitute parts can look different from the original.
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$5.29 | 
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Valve Stem 1718086
#305

Drive assembly diagram

Valve stem

Part #1718086

Replaced by #934-0255

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Manufacturer substitution
This part replaces 1718086. Substitute parts can look different from the original.
This item is not returnable
$5.43 | 
16% OFF Phone Price : $6.43
In Stock
Lawn & Garden Equipment Screw, 3/8-16 X 1-3/4-in 710-0347
#32

Drive assembly diagram

Lawn & garden equipment screw, 3/8-16 x 1-3/4-in

Part #710-0347

This item is not returnable
$7.69 | 
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Ball 792077
#20

Peerless transaxle 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 | 
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Assm-oil Val 1768865
#9

Drive assembly diagram

Assm-oil val

Part #1768865

Replaced by #951-10517A

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Manufacturer substitution
This part replaces 1768865. Substitute parts can look different from the original.
This item is not returnable
$27.89 | 
18% OFF Phone Price : $33.89
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Bracket 786086
#46

Peerless transaxle diagram

Bracket

Part #786086

Replaced by #786086

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Manufacturer substitution
This part replaces 786086. Substitute parts can look different from the original.
This item is not returnable
$6.79 | 
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Washer 780001
#31

Peerless transaxle diagram

Washer

Part #780001

Replaced by #780001

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Manufacturer substitution
This part replaces 780001. Substitute parts can look different from the original.
This item is not returnable
$4.34
In Stock
Toro Lawn & Garden Equipment Lock Washer (replaces 936-0169) 736-0169
Toro lawn & garden equipment lock washer (replaces 936-0169)

Part #736-0169

This item is not returnable
$5.26
In Stock

Symptoms for gas walk-behind mowers

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

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Why does my lawn mower run rough?

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

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Why does my lawn mower cut unevenly?

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

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Why does my lawn mower vibrate a lot?

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

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Why won't my lawn mower start?

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

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Why does my lawn mower stall?

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

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Why won't my lawn mower move?

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

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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.

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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…

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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. …

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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…

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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

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.…

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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

Top questions about Sears and Sears PartsDirect

Get answers to frequently asked questions about Sears and Sears PartsDirect.…

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