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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12A-753B063 Walk-Behind Mowers
Brake Pad 799021
#38

Peerless transaxle diagram

Brake pad

Part #799021

Replaced by #799021

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Flange Screw, 5/16-18 X 3 1740496
Flange screw, 5/16-18 x 3

Part #1740496

Replaced by #710-1260A

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Flange Screw 1724491
Flange screw

Part #1724491

Replaced by #710-1260A

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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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Flange Lock Screw, 1/4-20 X 1 1186308
Flange lock screw, 1/4-20 x 1

Part #1186308

Replaced by #710-0599

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Holder 790025
#44

Peerless transaxle diagram

Holder

Part #790025

Replaced by #790025

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Dowel Pin 786026
#39

Peerless transaxle diagram

Dowel pin

Part #786026

Replaced by #786026B

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This part replaces 786026. Substitute parts can look different from the original.
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Valve Stem 1718086
#305

Drive assembly diagram

Valve stem

Part #1718086

Replaced by #934-0255

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Screw 792073
Screw

Part #792073

Replaced by #792073

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Mtd Lawn & Garden Equipment Screw, 3/8-16 X 1-3/4-in 710-0347
#32

Drive assembly diagram

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

Part #710-0347

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$7.69
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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 walk-behind mowers

Use the advice and tips in these articles and videos to get the most out of your walk-behind lawn mower.

The best time of day to mow grass (and when you should absolutely not)

The best time of day to mow grass (and when you should absolutely not)

Wondering when to mow your lawn for the best results? Timing matters more than you might think. Discover the best time o…

Top 10 electric lawn and garden tools

Top 10 electric lawn and garden tools

Learn about the top 10 must-have electric lawn & garden tools for 2023…

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.…