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Model # 12BBP2R3793 (2021) Official MTD m320 lawn mower
Here are the diagrams and repair parts for Official MTD 12BBP2R3793 (2021) m320 lawn mower, as well as links to manuals and error code tables, if available.
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12BBP2R3793 (2021) Walk-Behind Mowers
Craftsman troybilt lawn mower 21-in deck mulching blade (replaces 01002810, 742-0741a, 942-04276, 942-0741)
Part #942-0741A
Get free shipping with Automatic Reorder
$28.54 |
17% OFF Phone Price : $34.54
In Stock
#NI
Quick reference diagram
Air filter
Part #BS-593260
Replaced by #593260
?
Manufacturer substitution
This part replaces BS-593260. Substitute parts can look different from the original.
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$18.59 |
10% OFF Phone Price : $20.59
In Stock
Lawn mower mulching plug assembly (replaces 987-02516)
Part #987-02516A
$26.42 |
19% OFF Phone Price : $32.42
In Stock
#NI
Axles/blade/cables diagram
Lawn mower blade support (replaces 936-0524a, 736-0524b)
Part #736-0524B-1
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$6.78 |
13% OFF Phone Price : $7.78
In Stock
#NI
Grassbag/handle/height adjustment knob diagram
Yard machines lawn & garden equipment nut
Part #712-04064
This item is not returnable
$4.49 |
18% OFF Phone Price : $5.49
In Stock
Lawn mower deflector shield
Part #731-07131
$21.93 |
21% OFF Phone Price : $27.93
In Stock
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
#NI
Control bails/deck assy diagram
Lawn mower drive control bar
Part #731-17335
$42.05 |
12% OFF Phone Price : $48.05
In Stock
#NI
Side discharge chute/transmission/wheels diagram
Lawn mower mulching door torsion spring (replaces 732-1014)
Part #732-1014C
$9.11 |
10% OFF Phone Price : $10.11
In Stock
Lawn mower drive control cable (replaces 946-05121)
Part #946-05121A
This item is not returnable
$33.07 |
15% OFF Phone Price : $39.07
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
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
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
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.

Learn about all the convenient features on our Sears PartsDirect website that make your parts purchases easier.…

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

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