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MTD
Gas Walk-Behind Mower

Model # 12A-379A062 Official MTD gas lawn mower

Here are the diagrams and repair parts for Official MTD 12A-379A062 gas lawn mower, as well as links to manuals and error code tables, if available.

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Model diagram and schematic

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ALL PARTS
Showing 10 of 21 parts  |
Blade-21" Mu 742-0741
#6

Mower assembly diagram

Blade-21" mu

Part #742-0741

Replaced by #942-0741A

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Manufacturer substitution
This part replaces 742-0741. Substitute parts can look different from the original.
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$28.54 | 
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Yard Machines Lawn & Garden Equipment Wing Nut (replaces 01002925, 920-0279) 720-0279
#12

Mower assembly 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
Drive Cable 746-0711A
#15

Mower assembly diagram

Drive cable

Part #746-0711A

Replaced by #946-0711B

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Manufacturer substitution
This part replaces 746-0711A. Substitute parts can look different from the original.
$32.85 | 
15% OFF Phone Price : $38.85
In Stock
Lawn Mower Blade Adapter 753-0609
#9

Mower assembly diagram

Lawn mower blade adapter

Part #753-0609

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$35.69 | 
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Handle Control 747-0824
#17

Mower assembly diagram

Handle control

Part #747-0824

Replaced by #747-0824B-0637

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Manufacturer substitution
This part replaces 747-0824. Substitute parts can look different from the original.
$71.88 | 
8% OFF Phone Price : $77.88
In Stock
Throttle Cable 746-0841
#14

Mower assembly diagram

Throttle cable

Part #746-0841

Replaced by #946-0674A

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Manufacturer substitution
This part replaces 746-0841. Substitute parts can look different from the original.
$25.20
In Stock
Handle Knob 720-0276
#11

Mower assembly diagram

Handle knob

Part #720-0276

Replaced by #920-0276

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Manufacturer substitution
This part replaces 720-0276. Substitute parts can look different from the original.
This item is not returnable
$5.70 | 
15% OFF Phone Price : $6.70
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Blade-21" W/ 742-0641
#6A

Mower assembly diagram

Blade-21" w/

Part #742-0641

Replaced by #942-0641

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Manufacturer substitution
This part replaces 742-0641. Substitute parts can look different from the original.

Get free shipping with Automatic Reorder

$33.99 | 
15% OFF Phone Price : $39.99
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Lawn Mower Rear Skirt Wire Rod 732-0700
#3

Mower assembly diagram

Lawn mower rear skirt wire rod

Part #732-0700

Replaced by #732P0700

?
Manufacturer substitution
This part replaces 732-0700. Substitute parts can look different from the original.
This item is not returnable
$7.09
In Stock
Lawn Mower Control Cable 746-0551
#13

Mower assembly diagram

Lawn mower control cable

Part #746-0551

Replaced by #946-0551

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Manufacturer substitution
This part replaces 746-0551. Substitute parts can look different from the original.
$25.93 | 
19% OFF Phone Price : $31.93
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

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

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

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 15 minutes or less

Effective articles & videos to help repair your walk-behind mowers

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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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