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Craftsman
Front-Engine Lawn Tractor

Model # 917279951 Official Craftsman lawn tractor

Here are the diagrams and repair parts for Official Craftsman 917279951 lawn tractor, 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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Showing 10 of 522 parts  |
Lawn Tractor V-belt 144959
#68

Mower deck diagram

Lawn tractor v-belt

Part #144959

Replaced by #532144959

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Manufacturer substitution
This part replaces 144959. Substitute parts can look different from the original.
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Lawn Tractor Mulching Blade 134149
#11

Mower deck diagram

Lawn tractor mulching blade

Part #134149

Replaced by #532134149

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Manufacturer substitution
This part replaces 134149. Substitute parts can look different from the original.
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Blade 42" 138498
#11A

Mower deck diagram

Blade 42"

Part #138498

Replaced by #532138971

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Manufacturer substitution
This part replaces 138498. Substitute parts can look different from the original.
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Lawn Tractor Blade Engagement Cable 169676
#152

Mower deck diagram

Lawn tractor blade engagement cable

Part #169676

Replaced by #532175067

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Manufacturer substitution
This part replaces 169676. Substitute parts can look different from the original.
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$41.18 | 
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V-belt 130801
#57

Drive diagram

V-belt

Part #130801

Replaced by #532138255

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Manufacturer substitution
This part replaces 130801. Substitute parts can look different from the original.
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Hex Flange Lock Nut 145212
Hex flange lock nut

Part #145212

Replaced by #532409149

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Manufacturer substitution
This part replaces 145212. Substitute parts can look different from the original.
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Lock Nut 73900600
#120

Drive diagram

Lock nut

Part #73900600

Replaced by #532409149

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This part replaces 73900600. Substitute parts can look different from the original.
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Lawn Tractor Idler Pulley 173438
#36

Mower deck diagram

Lawn tractor idler pulley

Part #173438

Replaced by #532173438

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Manufacturer substitution
This part replaces 173438. Substitute parts can look different from the original.
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Tower Lawn Tractor Ignition Switch (replaces 163968, 189687, 5321755-66, 5321896-87, 539107541) 175566
#30

Electrical diagram

Tower lawn tractor ignition switch (replaces 163968, 189687, 5321755-66, 5321896-87, 539107541)

Part #175566

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Lawn Tractor Deflector Shield Hinge Rod 131491
#29

Mower deck diagram

Lawn tractor deflector shield hinge rod

Part #131491

Replaced by #595297001

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Manufacturer substitution
This part replaces 131491. Substitute parts can look different from the original.
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$7.05 | 
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Why won't my riding mower cut grass?

Main causes: worn or broken blade belt, broken belt idler pulley, blade clutch cable failure, bad PTO switch, damaged ma…

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Main causes: faulty battery, bad alternator…

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Main causes: punctured tire or inner tube, leaky valve stem, damaged wheel rim…

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Why won't my riding mower start?

Main causes: dead battery, stale fuel, bad starter solenoid, ignition system problem, bad ignition interlock switch, clo…

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Why is the steering loose on my riding mower?

Main causes: damaged tie rods, bent or worn wheel spindle, worn front axle, damaged sector gear assembly…

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Why does my riding mower creep in neutral?

Main causes: shift lever needs adjustment, neutral control needs adjustment…

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Why does my riding mower run rough or misfire?

Main causes: clogged carburetor, damaged flywheel key, dirty spark plug, stale fuel, improper valve lash, engine needs a…

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Why won't my riding mower move?

Main causes: worn or broken ground drive belt, bad seat switch, transaxle freewheel control engaged, transaxle failure, …

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Why is my riding mower not cutting evenly?

Main causes: unlevel mower deck, dull or damaged cutting blades, worn mandrel pulleys, bent mower deck, engine needs tun…

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Repair difficulty
Time required
 60 minutes or less
How to replace a riding lawn mower blade

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If a blade on your mower is dull or bent, replace it following the steps in this repair guide.…

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Repair difficulty
Time required
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How to replace a riding lawn mower fuel filter

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Repair difficulty
Time required
 15 minutes or less

Effective articles & videos to help repair your riding mowers & tractors

Use the advice and tips in these articles and videos to get the most out of your riding mower or lawn tractor.

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How to enjoy all the online benefits we offer on our Sears PartsDirect website

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Riding lawn mower engine clicks but doesn't turn over video

Riding lawn mower engine clicks but doesn't turn over video

Check the starter solenoid, starter motor, wiring, battery and engine.…

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