Craftsman
Rear-Engine Riding Mower

Model # 10728791 Official Craftsman zero-turn rear-engine riding lawn mower

Here are the diagrams and repair parts for Official Craftsman 10728791 zero-turn rear-engine riding lawn mower, as well as links to manuals and error code tables, if available.

There are a couple of ways to find the part or diagram you need:

  • Click a diagram to see the parts shown on that diagram.
  • In the search box below, enter all or part of the part number or the part’s name.

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

We encourage you to save the model to your profile, so it’s easy to access parts and manuals for your appliance whenever you log in.

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

Model diagram and schematic

SEARCH WITHIN THIS MODEL

?

This is the number corresponding to the part on the diagram / schematic

Search
ALL PARTS
Showing 10 of 329 parts  |

Hex Lock Nut 1920397SM
#42

50" mower deck-housing/arbor diagram

Hex lock nut

Part #1920397SM

Replaced by #703232

?
Manufacturer substitution
This part replaces 1920397SM. Substitute parts can look different from the original.
BEST SELLER
This item is not returnable
$6.24
14% OFF Phone Price : $7.24
In Stock
Briggs And Stratton Switch-pto Push 1722887SM
#9

Electrical diagram

Briggs and stratton switch-pto push

Part #1722887SM

Replaced by #1722887SM

?
Manufacturer substitution
This part replaces 1722887SM. Substitute parts can look different from the original.
$37.79
14% OFF Phone Price : $43.79
In Stock
Lawn Tractor Bearing 1715724SM
#10

50" mower deck-housing/arbor diagram

Lawn tractor bearing

Part #1715724SM

$16.09
11% OFF Phone Price : $18.09
In Stock
Lawn Tractor Mandrel Shaft Spacer 1732544SM
#11

50" mower deck-housing/arbor diagram

Lawn tractor mandrel shaft spacer

Part #1732544SM

This item is not returnable
$8.94
10% OFF Phone Price : $9.94
In Stock
Trunnion 1731894SM
#14

Lift diagram

Trunnion

Part #1731894SM

Replaced by #1731894SM

?
Manufacturer substitution
This part replaces 1731894SM. Substitute parts can look different from the original.
This item is not returnable
$15.02
12% OFF Phone Price : $17.02
In Stock
Hex Flange Nut 1931277SM
Hex flange nut

Part #1931277SM

Replaced by #703409

?
Manufacturer substitution
This part replaces 1931277SM. Substitute parts can look different from the original.
$9.27
10% OFF Phone Price : $10.27
In Stock
Clip Hair Pi 1960074SM
#10

Lift diagram

Clip hair pi

Part #1960074SM

Replaced by #703300

?
Manufacturer substitution
This part replaces 1960074SM. Substitute parts can look different from the original.
This item is not returnable
$6.69
13% OFF Phone Price : $7.69
In Stock
Briggs And Stratton Switch - Rocker 1734141SM
#28

Electrical diagram

Briggs and stratton switch - rocker

Part #1734141SM

Replaced by #1734141SM

?
Manufacturer substitution
This part replaces 1734141SM. Substitute parts can look different from the original.
$56.96
10% OFF Was : $63.29
In Stock
Briggs And Stratton Spacer-0.385id 0.6697 1666294SM
#13

Lift diagram

Briggs and stratton spacer-0.385id 0.6697

Part #1666294SM

Replaced by #1666294SM

?
Manufacturer substitution
This part replaces 1666294SM. Substitute parts can look different from the original.
This item is not returnable
$8.49
11% OFF Phone Price : $9.49
In Stock
Tube, Caster Wheel Spacer 7035359SM
#3

Wheel and tire diagram

Tube, caster wheel spacer

Part #7035359SM

Replaced by #1734841SM

?
Manufacturer substitution
This part replaces 7035359SM. Substitute parts can look different from the original.
This item is not returnable
$22.09
21% OFF Phone Price : $28.09
In Stock

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

Main causes: faulty battery, bad alternator…

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

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

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

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

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

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 mandrel assembly on a riding lawn mower

How to replace a mandrel assembly on a riding lawn mower

Replace the mandrel assembly if the blade shaft vibrates or doesn't spin.…

Repair difficulty
Time required
 30 minutes or less
How to replace the flywheel key on a riding lawn mower

How to replace the flywheel key on a riding lawn mower

If the engine won't restart after hitting a stump or rock, the problem could be a sheared flywheel key. Follow these ste…

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

How to replace a riding lawn mower ignition coil

If you're not getting spark from a good spark plug, the problem could be the ignition coil. Follow these step-by-step in…

Repair difficulty
Time required
 30 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.…