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Model # 21A-634K711 Official Troybilt tiller
Here are the diagrams and repair parts for Official Troybilt 21A-634K711 tiller, as well as links to manuals and error code tables, if available.
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Browse Parts for21A-634K711 Tillers
- Yard machines lawn & garden equipment lock nut, 5/16-18
Part #712-04063
This item is not returnable$4.53 |18% OFF Phone Price : $5.53In Stock - #6A
Tine/hood assembly diagram
Mtd lawn and garden equipment nutPart #712-04064
This item is not returnable$4.49 |18% OFF Phone Price : $5.49In Stock - #43
Belt cover/belt/engine bracket diagram
Yard machines lawn & garden equipment bell washerPart #736-0242
This item is not returnable$6.58 |13% OFF Phone Price : $7.58In Stock - Lock washer
Part #736-0119
Replaced by #936-0119
?Manufacturer substitutionThis part replaces 736-0119. Substitute parts can look different from the original.This item is not returnable$6.05 |14% OFF Phone Price : $7.05In Stock - #7
Belt cover/belt/engine bracket diagram
BeltPart #1916657
Replaced by #954-04090
?Manufacturer substitutionThis part replaces 1916657. Substitute parts can look different from the original.This item is not returnableGet free shipping with Automatic Reorder
$25.18 |19% OFF Phone Price : $31.18In Stock - #4
Wheel/tire assembly diagram
Mtd lawn & garden equipment screw, 3/8-16 x 1-3/4-inPart #710-0347
This item is not returnable$7.69 |12% OFF Phone Price : $8.69In Stock - #1
Wheel/tire assembly diagram
Yard machines lawn tractor boltPart #710-0514
This item is not returnable$5.33 |16% OFF Phone Price : $6.33In Stock - #8
Belt cover/belt/engine bracket diagram
Reverse beltPart #1916658
Replaced by #954-04091
?Manufacturer substitutionThis part replaces 1916658. Substitute parts can look different from the original.This item is not returnableGet free shipping with Automatic Reorder
$27.89 |18% OFF Phone Price : $33.89In Stock - #4
Bumper diagram
Lawn tractor push capPart #726-0201
This item is not returnable$10.56 |16% OFF Phone Price : $12.56In Stock - #13
Cable assembly diagram
Lawn & garden equipment cable tiePart #725-0157
Replaced by #726-0178
?Manufacturer substitutionThis part replaces 725-0157. Substitute parts can look different from the original.This item is not returnable$2.16In 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
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.

Learn about all the convenient features on our Sears PartsDirect website that make your parts purchases easier.…

Get answers to frequently asked questions about Sears and Sears PartsDirect.…

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