MTD
Rear-Tine Tiller

Model # 21AB45M5099 Official MTD rear-tine tiller

Here are the diagrams and repair parts for Official MTD 21AB45M5099 rear-tine tiller, as well as links to manuals and error code tables, if available.

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Model diagram and schematic

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ALL PARTS
Showing 10 of 155 parts  |

Lawn & Garden Equipment Lock Nut, 5/16-18 (replaces 753-05591) 712-04063
Lawn & garden equipment lock nut, 5/16-18 (replaces 753-05591)

Part #712-04063

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This item is not returnable
$4.09
20% OFF Phone Price : $5.09
In Stock
Lawn & Garden Equipment Nut 712-04064
Lawn & garden equipment nut

Part #712-04064

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This item is not returnable
$3.17
37% OFF MSRP : $5.00
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Tiller Drive Belt (replaces 754-0434) 954-0434
#22

Engine/wheels diagram

Tiller drive belt (replaces 754-0434)

Part #954-0434

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Get free shipping with Automatic Reorder

$45.41
24% OFF MSRP : $60.00
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Lawn Tractor Self-tapping Screw, 5/16-18 X 3/4-in (replaces 01008620) 710-04484
#13

Gear case diagram

Lawn tractor self-tapping screw, 5/16-18 x 3/4-in (replaces 01008620)

Part #710-04484

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This item is not returnable
$2.94
50% OFF MSRP : $5.90
In Stock
Tiller Tine (replaces 742-0305-0637, 742-0305a) 742-0305A-0637
#10

Engine/wheels diagram

Tiller tine (replaces 742-0305-0637, 742-0305a)

Part #742-0305A-0637

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$19.89
9% OFF Phone Price : $21.89
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Lawn Tractor Ball Bearing (replaces 01000340, 1185064, 741-0600, 941-0124, 95406) 941-0600
#45

Gear case diagram

Lawn tractor ball bearing (replaces 01000340, 1185064, 741-0600, 941-0124, 95406)

Part #941-0600

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$25.63
16% OFF Phone Price : $30.63
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Lawn & Garden Equipment Bell Washer (replaces 936-0242) 736-0242
#19

Handle/tine shield diagram

Lawn & garden equipment bell washer (replaces 936-0242)

Part #736-0242

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$6.58
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Lawn Tractor Cotter Pin 714-04043
Lawn tractor cotter pin

Part #714-04043

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$7.49
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Lawn Tractor Bolt (replaces 01000369, 1509-091, 1509-117, 153015, 706-10123-20, 706-501277-1, 710-0342, 910-3005) 710-3005
Lawn tractor bolt (replaces 01000369, 1509-091, 1509-117, 153015, 706-10123-20, 706-501277-1, 710-0342, 910-3005)

Part #710-3005

This item is not returnable
$5.11
16% OFF Phone Price : $6.11
In Stock
Tiller Clutch Cable 746-1117
#20

Engine/wheels diagram

Tiller clutch cable

Part #746-1117

Replaced by #946-1117

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Manufacturer substitution
This part replaces 746-1117. Substitute parts can look different from the original.
$73.10
13% OFF MSRP : $84.00
In Stock

Most common symptoms to help you fix your tillers

Choose a symptom to see related tiller repairs.

Main causes: clutch cable problems, faulty transmission…

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

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

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

Main causes: broken shaft clevis pins, transmission failure…

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

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

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.…