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Craftsman
Front-Engine Lawn Tractor

Model # 91725840 Official Craftsman front-engine lawn tractor

Here are the diagrams and repair parts for Official Craftsman 91725840 front-engine lawn tractor, as well as links to manuals and error code tables, if available.

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Model diagram and schematic

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Showing 10 of 688 parts  |
Solenoid 103R
Solenoid

Part #103R

The manufacturer no longer makes this part, and there's no substitute part

Seal 788009
#69

Replacement parts diagram

Seal

Part #788009

Replaced by #788009

?
Manufacturer substitution
This part replaces 788009. Substitute parts can look different from the original.
$11.60
In Stock
Foot Pedal 5065R
#56

10e lawn tractor and 36 in rotary mower/engine & final drive diagram

Foot pedal

Part #5065R

Replaced by #510089501

?
Manufacturer substitution
This part replaces 5065R. Substitute parts can look different from the original.
$8.54
In Stock
Pinion 778068
#15

Replacement parts diagram

Pinion

Part #778068

Replaced by #778131

?
Manufacturer substitution
This part replaces 778068. Substitute parts can look different from the original.
$32.71 | 
15% OFF Phone Price : $38.71
In Stock
Housing Assembly 784246
#33

Replacement parts diagram

Housing assembly

Part #784246

The manufacturer no longer makes this part, and there's no substitute part

Riding Lawn Mower Engine 663A140
Riding lawn mower engine

Part #663A140

The manufacturer no longer makes this part, and there's no substitute part

Square Nut 503P
Square nut

Part #503P

The manufacturer no longer makes this part, and there's no substitute part

Bushing 4503R
#12

10e lawn tractor and 36 in rotary mower/mower diagram

Bushing

Part #4503R

The manufacturer no longer makes this part, and there's no substitute part

Snubr Supprt 663A15
#40

10e lawn tractor and 36 in rotary mower/mower diagram

Snubr supprt

Part #663A15

The manufacturer no longer makes this part, and there's no substitute part

Hex Fin Bolt 3021P
#34

10e lawn tractor and 36 in rotary mower/mower diagram

Hex fin bolt

Part #3021P

The manufacturer no longer makes this part, and there's no substitute part

Most common symptoms to help you fix your riding mowers & tractors

Choose a symptom to see related riding mower and lawn tractor repairs.

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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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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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How do I fix a flat tire on my riding mower?

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

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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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How do I charge a dead battery on my riding mower?

Main causes: faulty battery, bad alternator…

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Why does my riding mower deck vibrate?

Main causes: damaged cutting blade, worn deck pulley, damaged mandrel pulley, loose fasteners on mower deck components…

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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 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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Most common repair guides to help fix your riding mowers & tractors

These step-by-step repair guides will help you safely fix what’s broken on your riding mower or lawn tractor.

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How to replace the seat switch on a riding lawn mower

How to replace the seat switch on a riding lawn mower

Follow the steps in this guide to install a new riding mower seat switch in about 15 minutes.…

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Repair difficulty
Time required
 15 minutes or less
How to replace a riding lawn mower spark plug

How to replace a riding lawn mower spark plug

If the engine is hard to start or if the spark plug electrode is burnt or cracked, take 15 minutes to replace it.…

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Repair difficulty
Time required
 15 minutes or less
How to replace a riding lawn mower rear tire

How to replace a riding lawn mower rear tire

Your mower can’t run on a damaged rear tire. Here’s how to install a new one.…

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Repair difficulty
Time required
 60 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

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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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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