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Craftsman
Front-Tine Tiller

Model # 917986940 Official Craftsman tiller

Here are the diagrams and repair parts for Official Craftsman 917986940 tiller, as well as links to manuals and error code tables, if available.

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Not all parts are shown on the diagrams—those parts are labeled NI, for “not illustrated”.

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

Owner’s manual
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Model diagram and schematic

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ALL PARTS
Showing 10 of 233 parts  |
Lock Nut 73900600
#5

Transmission diagram

Lock nut

Part #73900600

Replaced by #532409149

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Manufacturer substitution
This part replaces 73900600. Substitute parts can look different from the original.
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$5.31 | 
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Washer 19121414
#7

Handles diagram

Washer

Part #19121414

Replaced by #596134901

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Manufacturer substitution
This part replaces 19121414. Substitute parts can look different from the original.
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$3.98 | 
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Spring Retainer 3146R
#2

Tine diagram

Spring retainer

Part #3146R

Replaced by #532003146

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Manufacturer substitution
This part replaces 3146R. Substitute parts can look different from the original.
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$4.02 | 
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Lawn Tractor Nut 73680600
#20

Wheel/depth stake diagram

Lawn tractor nut

Part #73680600

Replaced by #596322601

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Manufacturer substitution
This part replaces 73680600. Substitute parts can look different from the original.
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$5.11
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Tiller Reverse Drive Belt 2614J
#15

Belt guard/pulley diagram

Tiller reverse drive belt

Part #2614J

Replaced by #599385301

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Manufacturer substitution
This part replaces 2614J. Substitute parts can look different from the original.
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$19.98 | 
9% OFF Phone Price : $21.98
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Lock Washer 10040500
Lock washer

Part #10040500

Replaced by #596238801

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Manufacturer substitution
This part replaces 10040500. Substitute parts can look different from the original.
This item is not returnable
$5.11
In Stock
Tiller Bolt 180847
#13

Handles diagram

Tiller bolt

Part #180847

Replaced by #595901601

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Manufacturer substitution
This part replaces 180847. Substitute parts can look different from the original.
This item is not returnable
$3.98 | 
20% OFF Phone Price : $4.98
In Stock
Tiller Shoulder Bolt 121117X
#16

Wheel/depth stake diagram

Tiller shoulder bolt

Part #121117X

Replaced by #532121117

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Manufacturer substitution
This part replaces 121117X. Substitute parts can look different from the original.
This item is not returnable
$7.98 | 
11% OFF Phone Price : $8.98
In Stock
Ring Clip 12000036
#20

Belt guard/pulley diagram

Ring clip

Part #12000036

Replaced by #812000036

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Manufacturer substitution
This part replaces 12000036. Substitute parts can look different from the original.
This item is not returnable
$5.11
In Stock
Washer 10040400
Washer

Part #10040400

Replaced by #596029801

?
Manufacturer substitution
This part replaces 10040400. Substitute parts can look different from the original.
This item is not returnable
$5.11
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…

Read more

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…

Read more

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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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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