Horizon
Treadmill

Model #LS925T Horizon treadmill

Here are the diagrams and repair parts for Horizon LS925T treadmill, 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.

Save to my profile

    Showing 10 of 149 parts

    Core

    #M28

    Treadmill Diagram

    Core

    Part #003386-A
    ?
    Manufacturer substitution
    This part replaces MC0704005. Substitute parts can look different from the original.
    This part replaces MC0704005
    $12.13

    In Stock

    Rear Roller Set

    #AR2

    Treadmill Diagram

    Rear roller set

    Part #051608-B
    ?
    Manufacturer substitution
    This part replaces SM0908026A. Substitute parts can look different from the original.
    This part replaces SM0908026A
    $140.72

    In Stock

    Wheel

    #B22

    Treadmill Diagram

    Wheel

    Part #000037-CA
    ?
    Manufacturer substitution
    This part replaces MB0103040CA. Substitute parts can look different from the original.
    This part replaces MB0103040CA
    This item is not returnable
    $2.26

    In Stock

    L-Shaped Hex Wrench, 5-mm

    #KIT

    Treadmill Diagram

    L-shaped hex wrench, 5-mm

    Part #005412-00
    ?
    Manufacturer substitution
    This part replaces MZE1007002. Substitute parts can look different from the original.
    This part replaces MZE1007002
    This item is not returnable
    $2.16

    In Stock

    Exercise Equipment Screw

    #M07

    Treadmill Diagram

    Exercise equipment screw

    Part #004502-00
    ?
    Manufacturer substitution
    This part replaces MZE0104112. Substitute parts can look different from the original.
    This part replaces MZE0104112
    This item is not returnable
    $2.16

    In Stock

    Treadmill Reed Switch

    #P08

    Treadmill Diagram

    Treadmill reed switch

    Part #002248-D
    ?
    Manufacturer substitution
    This part replaces MC0510031D. Substitute parts can look different from the original.
    This part replaces MC0510031D
    $8.16

    In Stock

    Treadmill Walking Board Cushion, Center (Blue)

    #B58

    Treadmill Diagram

    Treadmill walking board cushion, center (blue)

    Part #000768-D
    ?
    Manufacturer substitution
    This part replaces MB0502017D. Substitute parts can look different from the original.
    This part replaces MB0502017D
    $14.60

    In Stock

    Exercise Equipment Bolt

    #B74

    Treadmill Diagram

    Exercise equipment bolt

    Part #004796-00
    ?
    Manufacturer substitution
    This part replaces ME0112024. Substitute parts can look different from the original.
    This part replaces ME0112024
    This item is not returnable
    $2.16

    In Stock

    Exercise Equipment Screw

    #N21

    Treadmill Diagram

    Exercise equipment screw

    Part #004620-00
    ?
    Manufacturer substitution
    This part replaces MZE0107023. Substitute parts can look different from the original.
    This part replaces MZE0107023
    This item is not returnable
    $2.16

    In Stock

    Treadmill Screw

    #R09

    Treadmill Diagram

    Treadmill screw

    Part #004488-00
    ?
    Manufacturer substitution
    This part replaces ME0104085. Substitute parts can look different from the original.
    This part replaces ME0104085
    This item is not returnable
    $2.19

    In Stock

    Symptoms for treadmills

    Choose a symptom to see related treadmill repairs.

    Main causes: damaged walking belt, improper belt tension, lack of belt lubricant, bad drive motor
    Main causes: faulty sensors, wiring failure, bad control console
    Main causes: missing safety key, bad control console, wiring failure, faulty motor control board, bad drive motor
    Main causes: rear roller out of alignment, damaged walking belt, bad roller
    Main causes: no power, bad power cord, tripped or faulty overload switch, bad power switch, wiring failure, bad motor control board
    Main causes: bad control console, wiring failure, bad motor control board
    Main causes: damaged walking belt, improper belt tension, bad roller bearing

    Repair guides for treadmills

    These step-by-step repair guides will help you safely fix what’s broken on your treadmill.

    June 1, 2015
    By Lyle Weischwill
    How to replace a treadmill drive motor

    A defective drive motor won't run when activated by the motor controller. Replace the treadmill drive motor if it doesn't run.

    Repair difficulty
    Time required
     15 minutes or less
    June 1, 2015
    By Lyle Weischwill
    How to replace a treadmill motor controller

    Your treadmill motor won't run with a defective motor controller. Replace the motor controller if it doesn't operate the motor correctly.

    Repair difficulty
    Time required
     15 minutes or less
    June 1, 2015
    By Lyle Weischwill
    How to replace a treadmill walking board

    A worn-out walking board creates friction with the walking belt and causes the belt to slow down during use. Replace the walking board if it's worn or damaged.

    Repair difficulty
    Time required
     30 minutes or less

    Articles and videos for treadmills

    Use the advice and tips in these articles and videos to get the most out of your treadmill.

    June 29, 2015

    Easy DIY treadmill repairs

    By Sears PartsDirect staff

    Learn about treadmill repairs that you can easily do yourself.

    June 1, 2015

    Treadmill common questions

    By Sears PartsDirect staff

    These answers to common questions can help you make the most of your treadmill.

    May 10, 2015

    How to maintain a treadmill

    By Sears PartsDirect staff

    Keep your treadmill in shape by following these tips.