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Model # 12A-528N731 Official MTD lawn mower
Here are the diagrams and repair parts for Official MTD 12A-528N731 lawn mower, as well as links to manuals and error code tables, if available.
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12A-528N731 Walk-Behind Mowers
#35
Lawn mower diagram
Yard machines lawn & garden equipment hex bolt, 3/8-24 x 1-1/2-in (replaces 910-1044)
Part #710-1044
This item is not returnable
$5.33 |
16% OFF Phone Price : $6.33
In Stock
#3
Lawn mower diagram
Cable 37.37
Part #746-1113
Replaced by #946-1113A
?
Manufacturer substitution
This part replaces 746-1113. Substitute parts can look different from the original.
$22.18 |
21% OFF Phone Price : $28.18
In Stock
#12
Lawn mower diagram
Knob wing nut
Part #720-0284
Replaced by #720-04072A
?
Manufacturer substitution
This part replaces 720-0284. Substitute parts can look different from the original.
$9.33 |
10% OFF Phone Price : $10.33
Back Order
#45
Lawn mower diagram
Wheel asm-8
Part #634-0190
Replaced by #634-0190A
?
Manufacturer substitution
This part replaces 634-0190. Substitute parts can look different from the original.
$37.77 |
14% OFF Phone Price : $43.77
In Stock
#47
Lawn mower diagram
Torsion spring
Part #732-1014
Replaced by #732-1014C
?
Manufacturer substitution
This part replaces 732-1014. Substitute parts can look different from the original.
$9.11 |
10% OFF Phone Price : $10.11
Back Order
#33
Lawn mower diagram
Lawn mower mulching blade
Part #742-0742A
Replaced by #942-0742A
?
Manufacturer substitution
This part replaces 742-0742A. Substitute parts can look different from the original.
Get free shipping with Automatic Reorder
$23.20 |
21% OFF Phone Price : $29.20
In Stock
#7
Lawn mower 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
#6
Lawn mower diagram
Yard machines lawn & garden equipment guide bolt
Part #710-1205
This item is not returnable
$5.01 |
17% OFF Phone Price : $6.01
In Stock
#20
Lawn mower diagram
Nut
Part #712-0431
Replaced by #912-0431
?
Manufacturer substitution
This part replaces 712-0431. Substitute parts can look different from the original.
This item is not returnable
$7.57 |
12% OFF Phone Price : $8.57
In Stock
#2
Lawn mower diagram
Bail
Part #747-1161A
Replaced by #747-1161A-0637
?
Manufacturer substitution
This part replaces 747-1161A. Substitute parts can look different from the original.
This item is not returnable
$20.10 |
23% OFF Phone Price : $26.10
In Stock
Symptoms for gas walk-behind mowers
Choose a symptom to see related walk-behind mower repairs.
Main causes: damaged cutting blade, loose cutting blade, damaged flywheel key, engine needs tune up…
Main causes: uneven wheel height settings, damaged wheel, dull or damaged cutting blade…
Main causes: engine needs tune up, dirty or clogged carburetor, damaged flywheel key…
Main causes: drive control cable failure, worn or broken drive belt, bad transmission, broken drive wheel…
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…
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 rebuild a lawn mower carburetor](https://images.ctfassets.net/fpe0ec7r30ix/2fw6myzlKksH8PXPpR0bSP/02d2c746482d6359beb3710d95ed53a2/RG-LM-Rebuild-a-Walk-Behind-Lawn-Mower-Carburetor-Intro-Image.jpg?fm=png&w=270&h=270)
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.…
Repair difficulty
Time required
60 minutes or less
![How to replace a lawn mower recoil starter on an OHV engine](https://images.ctfassets.net/fpe0ec7r30ix/5U5YHG3btYuY1YNx25W8Fa/d42840239e612933a8fffba6730fcf1d/RG-LM-Replace-a-Walk-Behind-Lawn-Mower-OHV-Engine-Recoil-Starter-Intro-Image.png?fm=png&w=270&h=270)
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.…
Repair difficulty
Time required
15 minutes or less
![How to replace a lawn mower wheel](https://images.ctfassets.net/fpe0ec7r30ix/6eSWx6dbkR2zzcAnO16BJL/748a200b2d5629c36c27ea51390f08b9/RG-LM-Replace-a-Walk-Behind-Lawn-Mower-Wheel-Intro-Image.jpg?fm=png&w=270&h=270)
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.…
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.
![How to enjoy all the online benefits we offer on our Sears PartsDirect website](https://images.ctfassets.net/fpe0ec7r30ix/1khJyw1eeQGvYKSbulrYWd/69493382c31bbf8d70b67fe7545f5e60/SPD_website_features.png?fm=png&w=270&h=270)
Learn about all the convenient features on our Sears PartsDirect website that make your parts purchases easier.…
![Top questions about Sears and Sears PartsDirect](https://images.ctfassets.net/fpe0ec7r30ix/71r4g5Qhkmxm0giaIpcktG/e37c53ab5e6190ca17767b9872422fb8/Sears_PartsDirect_questions.png?fm=png&w=270&h=270)
Get answers to frequently asked questions about Sears and Sears PartsDirect.…
![Types of walk-behind mower blades video](https://images.ctfassets.net/fpe0ec7r30ix/3cgsQVkIVSVgZqzWd8ZTQt/5a5b30c202154b41e06eeff937c05fdf/ART-walk-behind-mower-blade-types.jpeg?fm=png&w=270&h=270)
Learn about the different kinds of mower blades and how to maintain them.…