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MTD 12A-979L401 gas lawn mower Parts
Here are the diagrams and repair parts for MTD 12A-979L401 gas lawn mower, as well as links to manuals and error code tables, if available.
Owner’s manualBy Schematic
By Part
SELECT DIAGRAM
Browse Parts for 12A-979L401 Walk-Behind Mowers
Transaxle assembly diagram
Trail Shield
Part #731-1901Replaced by #731-1901A
Manufacturer substitutionThis part replaces 731-1901. Substitute parts can look different from the original.In Stock$57.60
Qty
Thtle-lever
Part #746-0876Replaced by #946-0876
Manufacturer substitutionThis part replaces 746-0876. Substitute parts can look different from the original.In Stock$12.57QtyTransaxle assembly diagram
Hex Washer
Part #710-0604Replaced by #710-0604A
Manufacturer substitutionThis part replaces 710-0604. Substitute parts can look different from the original.This item is not returnableIn Stock$6.6313% OFF Phone Price : $7.63
QtyLever
Part #731-0620Replaced by #731-0620A
Manufacturer substitutionThis part replaces 731-0620. Substitute parts can look different from the original.In Stock$28.46QtyGear Insert
Part #713-0397Replaced by #913-0397
Manufacturer substitutionThis part replaces 713-0397. Substitute parts can look different from the original.This item is not returnableIn Stock$9.46QtyTransmission diagram
Sleeve Bearing
Part #741-0682Replaced by #741-0682A
Manufacturer substitutionThis part replaces 741-0682. Substitute parts can look different from the original.In Stock$20.66QtyTransaxle assembly diagram
Spacer
Part #750-0151Replaced by #950-0151
Manufacturer substitutionThis part replaces 750-0151. Substitute parts can look different from the original.This item is not returnableIn Stock$16.1511% OFF Phone Price : $18.15QtyCable Tie
Part #726-0240Replaced by #726-0178
Manufacturer substitutionThis part replaces 726-0240. Substitute parts can look different from the original.This item is not returnableIn Stock$25.35QtyThrottle Body
Part #646-0875Replaced by #946-0875
Manufacturer substitutionThis part replaces 646-0875. Substitute parts can look different from the original.This item is not returnableIn Stock$14.49QtyTransaxle assembly diagram
Wing Nut
Part #712-0397Replaced by #712-0397A
Manufacturer substitutionThis part replaces 712-0397. Substitute parts can look different from the original.This item is not returnableIn Stock$6.1714% OFF Phone Price : $7.17Qty
Most common symptoms to help you fix your 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: dirty carburetor, bad spark plug, clogged air filter, engine choke problems, clogged gas cap vent…
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: engine needs tune up, dirty or clogged carburetor, damaged flywheel key…
Main causes: uneven wheel height settings, damaged wheel, dull or damaged cutting blade…
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 replace a lawn mower front deck tray
Learn how to replace the front deck tray on your lawn mower if it's cracked or damaged.…
Repair time and Difficulty
60 minutes or less
How to replace a lawn mower transmission
Learn how to replace the transmission on your lawn mower if it's locked up or won't drive the wheels.…
Repair time and Difficulty
60 minutes or less
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…
Repair time and Difficulty
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.
Wondering when to mow your lawn for the best results? Timing matters more than you might think. Discover the best time o…
Learn about the top 10 must-have electric lawn & garden tools for 2023…
Learn about the different kinds of mower blades and how to maintain them.…
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