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Western Auto
Rear-Tine Tiller

Model # 3487A79 Official Western Auto tiller

Here are the diagrams and repair parts for Official Western Auto 3487A79 tiller, as well as links to manuals and error code tables, if available.

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For DIY troubleshooting advice and repair guides, visit our repair help section.

Model diagram and schematic

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ALL PARTS
Showing 10 of 163 parts  |
Lock Washer 10040600
Lock washer

Part #10040600

Replaced by #596238701

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Manufacturer substitution
This part replaces 10040600. Substitute parts can look different from the original.
BEST SELLER
This item is not returnable
$5.31 | 
16% OFF Phone Price : $6.31
In Stock
Thrust Bearing 1370H
#17

Transmission diagram

Thrust bearing

Part #1370H

Replaced by #532001370

?
Manufacturer substitution
This part replaces 1370H. Substitute parts can look different from the original.
BEST SELLER
This item is not returnable
$6.64 | 
13% OFF Phone Price : $7.64
In Stock
Spring 100371K
#11

Transmission diagram

Spring

Part #100371K

Replaced by #532100371

?
Manufacturer substitution
This part replaces 100371K. Substitute parts can look different from the original.
BEST SELLER
This item is not returnable
$6.64 | 
13% OFF Phone Price : $7.64
In Stock
Ball 7392M
#12

Transmission diagram

Ball

Part #7392M

Replaced by #532100482

?
Manufacturer substitution
This part replaces 7392M. Substitute parts can look different from the original.
BEST SELLER
This item is not returnable
$6.64 | 
13% OFF Phone Price : $7.64
In Stock
Bearing 6803J
#30

Transmission diagram

Bearing

Part #6803J

Replaced by #532006803

?
Manufacturer substitution
This part replaces 6803J. Substitute parts can look different from the original.
This item is not returnable
$10.64 | 
16% OFF Phone Price : $12.64
In Stock
Lock Washer 10040500
Lock washer

Part #10040500

Replaced by #596238801

?
Manufacturer substitution
This part replaces 10040500. Substitute parts can look different from the original.
This item is not returnable
$5.11
In Stock
Washer Seal 154467
#16

Transmission diagram

Washer seal

Part #154467

Replaced by #532154467

?
Manufacturer substitution
This part replaces 154467. Substitute parts can look different from the original.
This item is not returnable
$5.31 | 
16% OFF Phone Price : $6.31
In Stock
O-ring 106160X
#1

Mainframe, left side diagram

O-ring

Part #106160X

Replaced by #532106160

?
Manufacturer substitution
This part replaces 106160X. Substitute parts can look different from the original.
This item is not returnable
$5.31 | 
16% OFF Phone Price : $6.31
In Stock
Washer 4358J
#8

Transmission diagram

Washer

Part #4358J

Replaced by #532004358

?
Manufacturer substitution
This part replaces 4358J. Substitute parts can look different from the original.
This item is not returnable
$5.31 | 
16% OFF Phone Price : $6.31
In Stock
Retainer 4497H
#8

Handle assembly diagram

Retainer

Part #4497H

Replaced by #532004497

?
Manufacturer substitution
This part replaces 4497H. Substitute parts can look different from the original.
This item is not returnable
$6.30
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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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.…

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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.…

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A guide to garden tillers

A guide to garden tillers

Rear tine tiller or front tine tiller, what to know to help in choosing the correct one for your needs.…

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