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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
Handle Control
Part #747-0824Replaced by #747-0824B-0637
Manufacturer substitutionThis part replaces 747-0824. Substitute parts can look different from the original.In Stock$88.426% OFF Phone Price : $94.42
Qty
Transaxle assembly diagram
Wheel Assembly
Part #734-1818Replaced by #734-1978
Manufacturer substitutionThis part replaces 734-1818. Substitute parts can look different from the original.In Stock$59.139% OFF Phone Price : $65.13QtyTransmission diagram
Ball Bearing
Part #741-0600Replaced by #941-0600
Manufacturer substitutionThis part replaces 741-0600. Substitute parts can look different from the original.In Stock$19.569% OFF Phone Price : $21.56QtyOil Seal
Part #721-0329Replaced by #921-0329
Manufacturer substitutionThis part replaces 721-0329. Substitute parts can look different from the original.In Stock$18.71QtyKnob Assembly
Part #720-0241Replaced by #720-04072A
Manufacturer substitutionThis part replaces 720-0241. Substitute parts can look different from the original.In Stock$11.2315% OFF Phone Price : $13.23QtyTransmission diagram
Bell Washer
Part #736-0425Replaced by #936-0425
Manufacturer substitutionThis part replaces 736-0425. Substitute parts can look different from the original.In Stock$30.59QtyCable Pulley
Part #746-0939Replaced by #946-0939A
Manufacturer substitutionThis part replaces 746-0939. Substitute parts can look different from the original.In Stock$25.8336% OFF Was : $40.13QtyTransmission diagram
Flat Washer
Part #736-0520Replaced by #936-0520
Manufacturer substitutionThis part replaces 736-0520. Substitute parts can look different from the original.In Stock$10.97QtyCntrl Box Th
Part #811-00303Replaced by #811-0185
Manufacturer substitutionThis part replaces 811-00303. Substitute parts can look different from the original.In Stock$44.53QtyPulley assembly diagram
Sleeve Spacer
Part #750-1070Replaced by #950-1070
Manufacturer substitutionThis part replaces 750-1070. Substitute parts can look different from the original.In Stock$33.08Qty
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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