Can't find your part?   Contact us:   +1-309-603-4777
Open Hamburger Menu
Sears Parts Direct
Tips to find your model number
Orders
Your models

Keep track of the models you own in your profile

Sign in or Register to view or add models

Schedule a repair
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.

By Schematic
By Part
SELECT DIAGRAM
?

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

Browse Parts for10728791 Riding Mowers & Tractors

  • Spindle Bearing 7013313SM
    #9

    50" mower deck-housing/arbor diagram

    Spindle bearing

    Part #7013313SM

    Replaced by #2108202SM

    ?
    Manufacturer substitution
    This part replaces 7013313SM. Substitute parts can look different from the original.
    $18.83
    10% OFF Phone Price : $20.83
    In Stock
  • Ball Bearing 1705897SM
    #13

    50" mower deck-housing/arbor diagram

    Ball bearing

    Part #1705897SM

    Replaced by #1705897SM

    ?
    Manufacturer substitution
    This part replaces 1705897SM. Substitute parts can look different from the original.
    $10.73
    16% OFF Phone Price : $12.73
    In Stock
  • Lawn Tractor Mandrel Housing 1713338ASM
    #14

    50" mower deck-housing/arbor diagram

    Lawn tractor mandrel housing

    Part #1713338ASM

    $61.45
    9% OFF Phone Price : $67.45
    In Stock
  • Hex Lock Nut 1919438SM
    #25

    Controls diagram

    Hex lock nut

    Part #1919438SM

    Replaced by #703902

    ?
    Manufacturer substitution
    This part replaces 1919438SM. Substitute parts can look different from the original.
    This item is not returnable
    $5.98
    14% OFF Phone Price : $6.98
    In Stock
  • Lawn Tractor Cup Washer 1713619SM
    #28

    50" mower deck-housing/arbor diagram

    Lawn tractor cup washer

    Part #1713619SM

    This item is not returnable
    $6.62
    13% OFF Phone Price : $7.62
    In Stock
  • Gasket 1707335SM
    #12

    50" mower deck-housing/arbor diagram

    Gasket

    Part #1707335SM

    Replaced by #1707335SM

    ?
    Manufacturer substitution
    This part replaces 1707335SM. Substitute parts can look different from the original.
    $10.25
    16% OFF Phone Price : $12.25
    In Stock
  • Briggs And Stratton Rod - Mower Lift 1734217SM
    #15

    Lift diagram

    Briggs and stratton rod - mower lift

    Part #1734217SM

    Replaced by #1734217SM

    ?
    Manufacturer substitution
    This part replaces 1734217SM. Substitute parts can look different from the original.
    This item is not returnable
    $23.36
    20% OFF Phone Price : $29.36
    In Stock
  • Lawn Tractor Mandrel Shaft Assembly 1713195SM
    #17

    50" mower deck-housing/arbor diagram

    Lawn tractor mandrel shaft assembly

    Part #1713195SM

    $41.26
    13% OFF Phone Price : $47.26
    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.
    $9.71
    9% OFF Phone Price : $10.71
    In Stock
  • Switch 1686734SM
    #2

    Electrical diagram

    Switch

    Part #1686734SM

    Replaced by #1686734SM

    ?
    Manufacturer substitution
    This part replaces 1686734SM. Substitute parts can look different from the original.
    $48.49
    11% OFF Phone Price : $54.49
    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.

The best time of day to mow grass (and when you should absolutely not)

The best time of day to mow grass (and when you should absolutely not)

Wondering when to mow your lawn for the best results? Timing matters more than you might think. Discover the best time o…

Top 10 electric lawn and garden tools

Top 10 electric lawn and garden tools

Learn about the top 10 must-have electric lawn & garden tools for 2023…

How to mow a lawn for healthier grass

How to mow a lawn for healthier grass

How often and tall you mow your lawn has a big impact on its health. Check out these 3 rules.…

Parts & More

Bottom-Mount Refrigerator
Chest Freezer
Cycling
Gas Chainsaw
Gas Range
Gas Walk-Behind Mower
Gas Water Heater
Lcd Television
Reciprocating Saw
Side-By-Side Refrigerator
Television
Top-Mount Refrigerator
Treadmill
Wet/Dry Vacuum