Gas Walk-Behind Mower

Model # 12A-986Q795 Official MTD lawn mower

Here are the diagrams and repair parts for Official MTD 12A-986Q795 lawn mower, as well as links to manuals and error code tables, if available.

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Browse Parts for12A-986Q795 Walk-Behind Mowers

  • Blade-21" Mu 742-0741
    #34

    Handle/chute/deck 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
    17% OFF Phone Price : $34.54
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  • Lawn Mower Blade Support 736-0524B
    #32

    Handle/chute/deck diagram

    Lawn mower blade support

    Part #736-0524B

    Replaced by #736-0524B-1

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    Manufacturer substitution
    This part replaces 736-0524B. Substitute parts can look different from the original.
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    $6.78
    13% OFF Phone Price : $7.78
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  • Knob Wing Nut 720-0284
    #13

    Handle/chute/deck diagram

    Knob wing nut

    Part #720-0284

    Replaced by #720-04072A

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    Manufacturer substitution
    This part replaces 720-0284. Substitute parts can look different from the original.
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    $9.33
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  • Lawn Tractor Screw, 1/4-20 X 5/8-in 710-1652
    #43

    Wheels/transmission diagram

    Lawn tractor screw, 1/4-20 x 5/8-in

    Part #710-1652

    This item is not returnable
    $5.44
    16% OFF Phone Price : $6.44
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  • Wing Nut 712-0397
    Wing nut

    Part #712-0397

    Replaced by #712-0397A

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    Manufacturer substitution
    This part replaces 712-0397. Substitute parts can look different from the original.
    This item is not returnable
    $5.22
    16% OFF Phone Price : $6.22
    In Stock
  • Mtd Lawn & Garden Equipment Carriage Bolt 710-0703
    #23

    Handle/chute/deck diagram

    Mtd lawn & garden equipment carriage bolt

    Part #710-0703

    This item is not returnable
    $6.46
    13% OFF Phone Price : $7.46
    In Stock
  • Mtd Lawn & Garden Equipment Push Cap 726-0214
    #53

    Wheels/transmission diagram

    Mtd lawn & garden equipment push cap

    Part #726-0214

    This item is not returnable
    $15.99
    11% OFF Phone Price : $17.99
    In Stock
  • Lawn & Garden Equipment Hex Nut 712-0429
    #45

    Handle/chute/deck diagram

    Lawn & garden equipment hex nut

    Part #712-0429

    This item is not returnable
    In Stock
  • Toro Lawn & Garden Equipment Flat Washer 736-3084
    #83

    Wheels/transmission diagram

    Toro lawn & garden equipment flat washer

    Part #736-3084

    This item is not returnable
    $6.14
    14% OFF Phone Price : $7.14
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  • Hex Flange 712-3027
    #52

    Handle/chute/deck diagram

    Hex flange

    Part #712-3027

    Replaced by #912-3027

    ?
    Manufacturer substitution
    This part replaces 712-3027. Substitute parts can look different from the original.
    This item is not returnable
    $5.44
    16% OFF Phone Price : $6.44
    In Stock

Symptoms for gas walk-behind mowers

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

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…

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

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…

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

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 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…

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. …

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…

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.

The best time of day to mow grass (and when you should absolutely not)

The best time of day to mow grass (and when you should absolutely not)

Wondering when to mow your lawn for the best results? Timing matters more than you might think. Discover the best time o…

Top 10 electric lawn and garden tools

Top 10 electric lawn and garden tools

Learn about the top 10 must-have electric lawn & garden tools for 2023…

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.…