Can’t find your part?   Contact us:
+1-309-603-4777
Sears Parts Direct
Orders

  • Keep track of the models you own in your profile

    Sign in or Register to view or add models

Schedule a repair
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.

There are a couple of ways to find the part or diagram you need:

  • Click a diagram to see the parts shown on that diagram.
  • In the search box below, enter all or part of the part number or the part’s name.

Not all parts are shown on the diagrams—those parts are labeled NI, for “not illustrated”.

We encourage you to save the model to your profile, so it’s easy to access parts and manuals for your appliance whenever you log in.

For DIY troubleshooting advice and repair guides, visit our repair help section.

Model diagram and schematic

SEARCH WITHIN THIS MODEL

?

This is the number corresponding to the part on the diagram / schematic

Search
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

?
Manufacturer substitution
This part replaces 742-0741. Substitute parts can look different from the original.
BEST SELLER

Get free shipping with Automatic Reorder

$29.10 | 
17% OFF Phone Price : $35.10
In Stock
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.
$7.63
In Stock
Throttle Cable 746-0841
#14

Mower assembly diagram

Throttle cable

Part #746-0841

Replaced by #946-0674A

?
Manufacturer substitution
This part replaces 746-0841. Substitute parts can look different from the original.
$27.09
In Stock
Lawn Mower Blade Adapter 753-0609
#9

Mower assembly diagram

Lawn mower blade adapter

Part #753-0609

Get free shipping with Automatic Reorder

$35.69 | 
14% OFF Phone Price : $41.69
In Stock
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
Handle Control 747-0824
#17

Mower assembly diagram

Handle control

Part #747-0824

Replaced by #747-0824B-0637

?
Manufacturer substitution
This part replaces 747-0824. Substitute parts can look different from the original.
$74.68 | 
7% OFF Phone Price : $80.68
In Stock
Drive Cable 746-0711A
#15

Mower assembly diagram

Drive cable

Part #746-0711A

Replaced by #946-0711B

?
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
Handle Knob 720-0276
#11

Mower assembly diagram

Handle knob

Part #720-0276

Replaced by #920-0276

?
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
In Stock
Blade-21" W/ 742-0641
#6A

Mower assembly diagram

Blade-21" w/

Part #742-0641

Replaced by #942-0641

?
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
In Stock
Lawn Mower Control Cable 746-0551
#13

Mower assembly diagram

Lawn mower control cable

Part #746-0551

Replaced by #946-0551

?
Manufacturer substitution
This part replaces 746-0551. Substitute parts can look different from the original.
$27.87 | 
18% OFF Phone Price : $33.87
In Stock

Symptoms for gas walk-behind mowers

Choose a symptom to see related walk-behind mower repairs.

View all

Why does my lawn mower run rough?

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

Read more

Why does my lawn mower cut unevenly?

Main causes: uneven wheel height settings, damaged wheel, dull or damaged cutting blade…

Read more

Why does my lawn mower vibrate a lot?

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

Read more

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…

Read more

Why does my lawn mower stall?

Main causes: dirty carburetor, bad spark plug, clogged air filter, engine choke problems, clogged gas cap vent…

Read more

Why won't my lawn mower move?

Main causes: drive control cable failure, worn or broken drive belt, bad transmission, broken drive wheel…

Read more

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.

View all
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…

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

How to replace a lawn mower blade

Check your lawn mower blade regularly and replaced it if it's bent or damaged. …

Read more
Repair difficulty
Time required
 15 minutes or less
How to replace a lawn mower flywheel key on a flathead engine

How to replace a lawn mower flywheel key on a flathead engine

When you hit a hard object with your mower, the flywheel can shear to protect more expensive components. Learn how to re…

Read more
Repair difficulty
Time required
 45 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.

View all
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.…

Read more
Introducing new technical repair content that we’re developing for the Sears Technical Institute

Introducing new technical repair content that we’re developing for the Sears Technical Institute

Learn about Sears Technical Institute and the advanced technical content being developed for aspiring appliance techs.…

Read more
Top questions about Sears and Sears PartsDirect

Top questions about Sears and Sears PartsDirect

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

Read more

Parts & More