MTD
Gas Walk-Behind Mower

Model #12AVP2R3793 MTD gas walk behind lawnmower

Here are the diagrams and repair parts for MTD 12AVP2R3793 gas walk behind lawnmower, 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.

Save to my profile

    Showing 10 of 133 parts

    Lawn Mower 21-in Deck Mulching Blade

    #NI03

    Lawn mower Diagram

    $19.68

    In Stock

    Lawn Mower Mulching Plug

    #NI13

    Lawn mower Diagram

    Lawn mower mulching plug

    Part #987-02516A
    $16.07

    In Stock

    Lawn & Garden Equipment Hex Bolt, 3/8-24 x 1-1/2-in

    #NI06

    Lawn mower Diagram

    Lawn & garden equipment hex bolt, 3/8-24 x 1-1/2-in

    Part #710-1044
    This item is not returnable
    $3.38

    In Stock

    Lawn Mower Zone Control Cable

    #NI07

    Lawn mower Diagram

    $10.46

    In Stock

    Lawn Mower Discharge Chute Deflector

    #NI09

    Lawn mower Diagram

    $10.17 | 
    15% OFF MSRP:$12.00

    In Stock

    Lawn Mower Rear Skirt

    #NI15

    Lawn mower Diagram

    Lawn mower rear skirt

    Part #731-07203
    $7.86

    In Stock

    Lawn Mower Ground Drive Belt

    #NI02

    Lawn mower Diagram

    Lawn mower ground drive belt

    Part #954-04282

    Get free shipping with Automatic Reorder

    $14.62

    In Stock

    Lawn Mower Wheel, 8 x 2-in

    #NI16

    Lawn mower Diagram

    $21.54 | 
    10% OFF MSRP:$24.00

    In Stock

    Lawn Mower Wheel

    #NI17

    Lawn mower Diagram

    Lawn mower wheel

    Part #934-04699
    $23.40 | 
    31% OFF MSRP:$34.00

    In Stock

    Lawn Mower Grass Bag

    #NI12

    Lawn mower Diagram

    Lawn mower grass bag

    Part #664P05324
    $65.62

    In Stock

    Symptoms for gas walk-behind mowers

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

    Main causes: drive control cable failure, worn or broken drive belt, bad transmission, broken drive wheel
    Main causes: uneven wheel height settings, damaged wheel, dull or damaged cutting blade
    Main causes: dirty carburetor, bad spark plug, clogged air filter, engine choke problems, clogged gas cap vent
    Main causes: damaged cutting blade, loose cutting blade, damaged flywheel key, engine needs tune up
    Main causes: engine needs tune up, dirty or clogged carburetor, damaged flywheel key
    Main causes: stale gas, engine needs tune up, bad spark plug, dead battery, bad recoil starter, faulty safety switch, bad ignition coil

    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 flywheel key on an OHV engine

    The flywheel key couples the flywheel to the engine crankshaft. Replace the flywheel key if it's broken.

    Repair difficulty
    Time required
     60 minutes or less
    April 1, 2013
    By Lyle Weischwill
    How to replace a lawn mower wheel

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

    Repair difficulty
    Time required
     15 minutes or less
    April 1, 2013
    By Lyle Weischwill
    How to replace a lawn mower safety switch

    The safety switch stops the engine when you release the lever on the handle. This repair guide explains how to replace it if it's not working correctly.

    Repair difficulty
    Time required
     30 minutes or less

    Articles and videos common to all walk-behind mowers

    Use the advice and tips in these articles and videos to get the most out of your walk-behind lawn mower.

    October 1, 2019

    Types of walk-behind mower blades video

    By Sears PartsDirect staff

    Learn about the different kinds of mower blades and how to maintain them.