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Troybilt
Gas Walk-Behind Mower

Model # 12A-909J063 Official Troybilt lawn mower

Here are the diagrams and repair parts for Official Troybilt 12A-909J063 lawn mower, as well as links to manuals and error code tables, if available.

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Owner’s manual

Model diagram and schematic

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ALL PARTS
Showing 10 of 86 parts  |
Screw-hwh GW-9552
#48

Mower deck/engine/bag diagram

Screw-hwh

Part #GW-9552

Replaced by #710-0599

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Manufacturer substitution
This part replaces GW-9552. Substitute parts can look different from the original.
BEST SELLER
This item is not returnable
$4.91 | 
17% OFF Phone Price : $5.91
In Stock
Cable Tie 1763682
#10

Handle diagram

Cable tie

Part #1763682

Replaced by #726-0178

?
Manufacturer substitution
This part replaces 1763682. Substitute parts can look different from the original.
This item is not returnable
$2.16
In Stock
Cap 1727342
#8

Mower deck/engine/bag diagram

Cap

Part #1727342

Replaced by #726-0135

?
Manufacturer substitution
This part replaces 1727342. Substitute parts can look different from the original.
This item is not returnable
$10.46 | 
16% OFF Phone Price : $12.46
In Stock
Scr-hflk 1/4 1917088
#15

Mower deck/engine/bag diagram

Scr-hflk 1/4

Part #1917088

Replaced by #710-1206

?
Manufacturer substitution
This part replaces 1917088. Substitute parts can look different from the original.
This item is not returnable
$10.87 | 
16% OFF Phone Price : $12.87
In Stock
Ryobi Grip 720-0313
#53

Mower deck/engine/bag diagram

Ryobi grip

Part #720-0313

$26.38
In Stock
Snap Ring GW-9516
#41

Mower deck/engine/bag diagram

Snap ring

Part #GW-9516

This item is not returnable
$7.06
In Stock
Yard Machines Lawn & Garden Equipment Wing Nut (replaces 01002925, 920-0279) 720-0279
#17

Handle diagram

Yard machines lawn & garden equipment wing nut (replaces 01002925, 920-0279)

Part #720-0279

This item is not returnable
$6.87 | 
13% OFF Phone Price : $7.87
In Stock
Ace Flange Screw 1754128
#9

Mower deck/engine/bag diagram

Ace flange screw

Part #1754128

This item is not returnable
$6.14
In Stock
Lawn & Garden Equipment Belleville Washer GW-9928
#28

Mower deck/engine/bag diagram

Lawn & garden equipment belleville washer

Part #GW-9928

$22.17
In Stock
Ace Lawn & Garden Equipment Hex Bolt 1186309
#46

Mower deck/engine/bag diagram

Ace lawn & garden equipment hex bolt

Part #1186309

This item is not returnable
$3.63
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 vibrate a lot?

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

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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 run rough?

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

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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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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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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 rebuild a lawn mower carburetor

How to rebuild a lawn mower carburetor

The carburetor mixes air with fuel to drive the piston. Rebuild the carburetor if it's clogged or leaks.…

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Repair difficulty
Time required
 60 minutes or less
How to replace a lawn mower recoil starter on an OHV engine

How to replace a lawn mower recoil starter on an OHV engine

Replace the recoil starter if it doesn't move when you pull the starter rope.…

Read more
Repair difficulty
Time required
 15 minutes or less
How to replace a lawn mower wheel

How to replace a lawn mower wheel

Learn how replace a damaged wheel on a walk-behind lawn mower—it's a quick, easy fix.…

Read more
Repair difficulty
Time required
 15 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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Top questions about Sears and Sears PartsDirect

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

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Types of walk-behind mower blades video

Types of walk-behind mower blades video

Learn about the different kinds of mower blades and how to maintain them.…

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