Front-Engine Lawn Tractor

Model # 91725980 Official Craftsman 16 & 18 twin hydro garden tractor

Here are the diagrams and repair parts for Official Craftsman 91725980 16 & 18 twin hydro garden tractor, as well as links to manuals and error code tables, if available.

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91725980 Riding Mowers & Tractors
Filter 7741R
#37

Seat and steering diagram

Filter

Part #7741R

Replaced by #84001895

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Manufacturer substitution
This part replaces 7741R. Substitute parts can look different from the original.
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$9.57
9% OFF Phone Price : $10.57
In Stock
Solenoid 7754R
#15

Electrical diagram

Solenoid

Part #7754R

Replaced by #532146154

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Manufacturer substitution
This part replaces 7754R. Substitute parts can look different from the original.
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$28.33
17% OFF Phone Price : $34.33
In Stock
E-ring STD581075
E-ring

Part #STD581075

Replaced by #812000029

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Manufacturer substitution
This part replaces STD581075. Substitute parts can look different from the original.
BEST SELLER
This item is not returnable
$4.51
18% OFF Phone Price : $5.51
In Stock
Gripco Nut 7810H
Gripco nut

Part #7810H

Replaced by #596322601

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Manufacturer substitution
This part replaces 7810H. Substitute parts can look different from the original.
BEST SELLER
This item is not returnable
In Stock
Wizard Lawn Tractor Axle Flange Bearing (replaces 532009040, 5320090-40, 532124959, 577203109, 5920h, 5920h1, P-1246, P-1622) 9040H
#7

Front axle diagram

Wizard lawn tractor axle flange bearing (replaces 532009040, 5320090-40, 532124959, 577203109, 5920h, 5920h1, p-1246, p-1622)

Part #9040H

Replaced by #532009040

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Manufacturer substitution
This part replaces 9040H. Substitute parts can look different from the original.
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This item is not returnable
$9.31
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Tire 2169R
#25

Front axle diagram

Tire

Part #2169R

Replaced by #532122075

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Manufacturer substitution
This part replaces 2169R. Substitute parts can look different from the original.
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$59.63
9% OFF Phone Price : $65.63
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Hitch Pin, 2-pack 4939M
Hitch pin, 2-pack

Part #4939M

Replaced by #596919601

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Manufacturer substitution
This part replaces 4939M. Substitute parts can look different from the original.
This item is not returnable
$4.31
19% OFF Phone Price : $5.31
In Stock
Washer 1552P
#21

Front axle diagram

Washer

Part #1552P

Replaced by #532121749

?
Manufacturer substitution
This part replaces 1552P. Substitute parts can look different from the original.
This item is not returnable
$4.31
19% OFF Phone Price : $5.31
In Stock
Battery Cable 2753R
#30

Electrical diagram

Battery cable

Part #2753R

Replaced by #532004207

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Manufacturer substitution
This part replaces 2753R. Substitute parts can look different from the original.
This item is not returnable
$7.20
12% OFF Phone Price : $8.20
In Stock
Carriage Bolt, 5/16-18 X 3/4-in STD533107
#72

Seat and steering diagram

Carriage bolt, 5/16-18 x 3/4-in

Part #STD533107

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.

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

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

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

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

Main causes: engine overfilled with oil, leaky head gasket or sump gasket, damaged carburetor seals, cracked fuel pump, …

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

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

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

Main causes: faulty battery, bad alternator…

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.

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.…

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

How to replace a riding lawn mower blade

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

Repair difficulty
Time required
 30 minutes or less
How to replace a riding lawn mower fuel filter

How to replace a riding lawn mower fuel filter

Help your mower run better by replacing the fuel filter during your riding mower's annual tune-up.…

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.

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.…

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.…

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.…