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Ryobi
Rear-Tine Tiller

Model # 21AB454B734 Official Ryobi rear-tine tiller

Here are the diagrams and repair parts for Official Ryobi 21AB454B734 rear-tine tiller, as well as links to manuals and error code tables, if available.

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Owner’s manual

Model diagram and schematic

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ALL PARTS
Showing 10 of 157 parts  |
Belt-v 1/2x5 754-0434
#20

Counterweight/belt cover diagram

Belt-v 1/2x5

Part #754-0434

Replaced by #954-0434

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Manufacturer substitution
This part replaces 754-0434. Substitute parts can look different from the original.
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Get free shipping with Automatic Reorder

$45.41 | 
24% OFF MSRP : $60.00
In Stock
13" Articula 742-0305
#53

Tines & shield/handle diagram

13" articula

Part #742-0305

Replaced by #742-0305A-0637

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Manufacturer substitution
This part replaces 742-0305. Substitute parts can look different from the original.
BEST SELLER
$19.89 | 
9% OFF Phone Price : $21.89
In Stock
Bearing 741-0124
#43

Gears diagram

Bearing

Part #741-0124

Replaced by #941-0600

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Manufacturer substitution
This part replaces 741-0124. Substitute parts can look different from the original.
BEST SELLER
$25.63 | 
16% OFF Phone Price : $30.63
In Stock
Lawn & Garden Equipment Bell Washer (replaces 936-0242) 736-0242
Lawn & garden equipment bell washer (replaces 936-0242)

Part #736-0242

BEST SELLER
$6.58 | 
13% OFF Phone Price : $7.58
In Stock
Lock Washer 736-0119
#12

Counterweight/belt cover diagram

Lock washer

Part #736-0119

Replaced by #936-0119

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Manufacturer substitution
This part replaces 736-0119. Substitute parts can look different from the original.
This item is not returnable
$6.05 | 
14% OFF Phone Price : $7.05
In Stock
Lawn Tractor Bolt (replaces 01000369, 1509-091, 1509-117, 153015, 706-10123-20, 706-501277-1, 710-0342, 910-3005) 710-3005
#4

Tines & shield/handle diagram

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
#18

Counterweight/belt cover 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
Lawn & Garden Equipment Lock Washer (replaces 936-0169) 736-0169
Lawn & garden equipment lock washer (replaces 936-0169)

Part #736-0169

This item is not returnable
$4.89
In Stock
Stop Nut 712-0429
#8

Tines & shield/handle diagram

Stop nut

Part #712-0429

This item is not returnable
$6.57
In Stock
Lawn & Garden Equipment Hex Nut (replaces 912-3010) 712-3010
#45

Counterweight/belt cover diagram

Lawn & garden equipment hex nut (replaces 912-3010)

Part #712-3010

This item is not returnable
$7.17
In Stock

Most common symptoms to help you fix your tillers

Choose a symptom to see related tiller repairs.

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Why do my tiller's tines turn but the wheels don't?

Main causes: clutch cable problems, faulty transmission…

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Why does my tiller turn the soil poorly?

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

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Why won't my tillers wheels or tines turn?

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

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Why does my tiller's engine leak oil or gas?

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

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Why do my tiller's wheels turn but the tines don't?

Main causes: broken shaft clevis pins, transmission failure…

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Why does my tiller's engine run roughly or misfire?

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

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Why won't my tiller's engine start?

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

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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.

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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…

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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.

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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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