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Rear-Tine Tiller

Model # 21AA412A700 Official MTD rear-tine tiller

Here are the diagrams and repair parts for Official MTD 21AA412A700 rear-tine tiller, as well as links to manuals and error code tables, if available.

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Browse Parts for21AA412A700 Tillers

  • Bearing 741-0124
    #34

    Gear case diagram

    Bearing

    Part #741-0124

    Replaced by #941-0600

    ?
    Manufacturer substitution
    This part replaces 741-0124. Substitute parts can look different from the original.
    $32.24 | 
    16% OFF Phone Price : $38.24
    In Stock
  • Yard Machines Lawn & Garden Equipment Bell Washer 736-0242
    #9

    Engine/wheels/tines diagram

    Yard machines lawn & garden equipment bell washer

    Part #736-0242

    This item is not returnable
    $6.58 | 
    13% OFF Phone Price : $7.58
    In Stock
  • Sears Lawn & Garden Equipment Hex Bolt 710-3180
    #10

    Engine/wheels/tines diagram

    Sears lawn & garden equipment hex bolt

    Part #710-3180

    This item is not returnable
    $6.93 | 
    13% OFF Phone Price : $7.93
    In Stock
  • Mtd Lawn & Garden Equipment Flat Washer 736-0204
    #16

    Shield & handle diagram

    Mtd lawn & garden equipment flat washer

    Part #736-0204

    This item is not returnable
    $5.43 | 
    16% OFF Phone Price : $6.43
    In Stock
  • Mtd Lawn & Garden Equipment Hex Nut 712-3010
    #8

    Engine/wheels/tines diagram

    Mtd lawn & garden equipment hex nut

    Part #712-3010

    In Stock
  • Flat Washer 736-0351
    #15

    Gear case diagram

    Flat washer

    Part #736-0351

    This item is not returnable
    In Stock
  • Clevis Pin 711-0415
    Clevis pin

    Part #711-0415

    In Stock
  • Ryobi Lawn Tractor Screw 710-0376
    #37

    Shield & handle diagram

    Ryobi lawn tractor screw

    Part #710-0376

    This item is not returnable
    $5.11 | 
    16% OFF Phone Price : $6.11
    In Stock
  • Aircap Lawn & Garden Equipment Hex Screw 710-0896
    Aircap lawn & garden equipment hex screw

    Part #710-0896

    This item is not returnable
    $5.22 | 
    16% OFF Phone Price : $6.22
    In Stock
  • Ryobi Tiller Wheel Axle Oil Seal 721-0379
    #4

    Gear case diagram

    Ryobi tiller wheel axle oil seal

    Part #721-0379

    This item is not returnable
    $23.80 | 
    20% OFF Phone Price : $29.80
    In Stock

Most common symptoms to help you fix your tillers

Choose a symptom to see related tiller repairs.

Main causes: damaged tines, broken clevis pins, worn drive belt, faulty transmission, clutch cable problems, improper de…

Main causes: dirty carburetor, engine needs tune up, stale gas…

Main causes: broken shaft clevis pins, transmission failure…

Main causes: worn or broken drive belts, bad transmission, clutch cable problems…

Main causes: carburetor failure, bad gasoline, dirty spark plug, broken recoil starter…

Main causes: leaky engine head gasket, damaged sump gasket, damaged oil drain plug seal, loose or cracked fuel line, lea…

Main causes: clutch cable problems, faulty transmission…

Most common repair guides to help fix your tillers

These step-by-step repair guides will help you safely fix what’s broken on your tiller.

How to replace a tiller recoil starter

How to replace a tiller recoil starter

The recoil starter spins the engine when you pull the starter rope, and the rope retracts when released. If the recoil s…

Repair difficulty
Time required
 15 minutes or less

Effective articles & videos to help repair your tillers

Use the advice and tips in these articles and videos to get the most out of your tiller.

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.…

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.…

Find the right carburetor assembly for a Craftsman snowblower, tiller or log splitter

Find the right carburetor assembly for a Craftsman snowblower, tiller or log splitter

This chart will help you find the right carburetor for your Craftsman snowblower, tiller or log splitter.…

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