Horizon
Treadmill

Model #T50 Horizon treadmill

Here are the diagrams and repair parts for Horizon T50 treadmill, as well as links to manuals and error code tables, if available.

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

    Showing 10 of 172 parts

    L Hbar Set

    #AG1A

    All parts Diagram

    L hbar set

    Part #SZTM162HDB-L
    $29.28

    In Stock

    Cable

    #P01

    All parts Diagram

    Cable

    Part #002073-B
    ?
    Manufacturer substitution
    This part replaces MC0501158B. Substitute parts can look different from the original.
    This part replaces MC0501158B
    $17.00

    In Stock

    Sleeve

    #P30

    All parts Diagram

    Sleeve

    Part #014827-AB
    ?
    Manufacturer substitution
    This part replaces MB0901004. Substitute parts can look different from the original.
    This part replaces MB0901004
    $224.15

    In Stock

    Screw

    #R08

    All parts Diagram

    Screw

    Part #MZE0104077

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

    Washer

    #M13

    All parts Diagram

    Washer

    Part #005010-00
    ?
    Manufacturer substitution
    This part replaces MZE0501017. Substitute parts can look different from the original.
    This part replaces MZE0501017
    This item is not returnable
    $2.16

    In Stock

    Treadmill Transport Wheel

    #L06

    All parts Diagram

    Treadmill transport wheel

    Part #000021-B
    ?
    Manufacturer substitution
    This part replaces MB0103006B. Substitute parts can look different from the original.
    This part replaces MB0103006B
    This item is not returnable
    $3.52

    In Stock

    Console Case Screw, M4 x 15

    #M24

    All parts Diagram

    Console case screw, m4 x 15

    Part #004617-00
    ?
    Manufacturer substitution
    This part replaces ME0107015. Substitute parts can look different from the original.
    This part replaces ME0107015
    This item is not returnable
    $2.16

    In Stock

    Speed Sensor Fix Plate

    #B52

    All parts Diagram

    Speed sensor fix plate

    Part #007490-C
    ?
    Manufacturer substitution
    This part replaces MJ1040005C. Substitute parts can look different from the original.
    This part replaces MJ1040005C
    This item is not returnable
    $2.16

    In Stock

    Elliptical Bolt

    #H44

    All parts Diagram

    Elliptical bolt

    Part #004735-00
    ?
    Manufacturer substitution
    This part replaces MZE0112046. Substitute parts can look different from the original.
    This part replaces MZE0112046
    This item is not returnable
    $2.19

    In Stock

    Fix Plate

    #B08

    All parts Diagram

    Fix plate

    Part #007387-E
    ?
    Manufacturer substitution
    This part replaces MJ1017037D. Substitute parts can look different from the original.
    This part replaces MJ1017037D
    $8.31

    In Stock

    Symptoms for treadmills

    Choose a symptom to see related treadmill repairs.

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