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Treadmill

Model # WT751 Official Horizon treadmill

Here are the diagrams and repair parts for Official Horizon WT751 treadmill, as well as links to manuals and error code tables, if available.

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Browse Parts forWT751 Fitness & Exercise

  • Breaker MC0702011
    #P04

    Treadmill diagram

    Breaker

    Part #MC0702011

    Replaced by #003346-00

    ?
    Manufacturer substitution
    This part replaces MC0702011. Substitute parts can look different from the original.
    $14.80
    In Stock
  • Switch MC0701002
    #P02

    Treadmill diagram

    Switch

    Part #MC0701002

    Replaced by #003326-00

    ?
    Manufacturer substitution
    This part replaces MC0701002. Substitute parts can look different from the original.
    $27.79 | 
    18% OFF Phone Price : $33.79
    In Stock
  • Spd Sensor SSED080434CA
    #KIT

    Treadmill diagram

    Spd sensor

    Part #SSED080434CA

    Replaced by #060295-CA

    ?
    Manufacturer substitution
    This part replaces SSED080434CA. Substitute parts can look different from the original.
    $35.73 | 
    14% OFF Phone Price : $41.73
    In Stock
  • Drive Mtr SZTM113MTR
    #M01

    Treadmill diagram

    Drive mtr

    Part #SZTM113MTR

    Replaced by #1000111822

    ?
    Manufacturer substitution
    This part replaces SZTM113MTR. Substitute parts can look different from the original.
    $300.59 | 
    $12.00 OFF Phone Price : $312.59
    In Stock
  • Elastomer MB0502017D
    #B58

    Treadmill diagram

    Elastomer

    Part #MB0502017D

    Replaced by #000768-D

    ?
    Manufacturer substitution
    This part replaces MB0502017D. Substitute parts can look different from the original.
    $13.60
    In Stock
  • Control Board SJED08092GF
    #M03

    Treadmill diagram

    Control board

    Part #SJED08092GF

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

  • Elastomer MB0502016D
    #B57

    Treadmill diagram

    Elastomer

    Part #MB0502016D

    Replaced by #000767-D

    ?
    Manufacturer substitution
    This part replaces MB0502016D. Substitute parts can look different from the original.
    $17.69 | 
    10% OFF Phone Price : $19.69
    In Stock
  • Safety Key S140115001
    #N33

    Treadmill diagram

    Safety key

    Part #S140115001

    Replaced by #016167-Z

    ?
    Manufacturer substitution
    This part replaces S140115001. Substitute parts can look different from the original.
    $28.05
    In Stock
  • Screw ME0104085
    #R09

    Treadmill diagram

    Screw

    Part #ME0104085

    Replaced by #004488-00

    ?
    Manufacturer substitution
    This part replaces ME0104085. Substitute parts can look different from the original.
    This item is not returnable
    $2.16
    In Stock
  • Screw ME0106026B
    #M10

    Treadmill diagram

    Screw

    Part #ME0106026B

    Replaced by #004595-00

    ?
    Manufacturer substitution
    This part replaces ME0106026B. Substitute parts can look different from the original.
    This item is not returnable
    $2.40
    In Stock

Symptoms for treadmills

Choose a symptom to see related treadmill repairs.

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Why won't my treadmill power up?

Main causes: no power, bad power cord, tripped or faulty overload switch, bad power switch, wiring failure, bad motor co…

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Why is my treadmill's walking belt off center?

Main causes: rear roller out of alignment, damaged walking belt, bad roller…

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Why won't my treadmill start even though the console display works?

Main causes: missing safety key, bad control console, wiring failure, faulty motor control board, bad drive motor…

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Why is my treadmill's heart rate sensor not accurate?

Main causes: faulty sensors, wiring failure, bad control console…

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Why does my treadmill have no display?

Main causes: bad control console, wiring failure, bad motor control board…

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Why does my treadmill's walking belt slow down?

Main causes: damaged walking belt, improper belt tension, lack of belt lubricant, bad drive motor…

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Why is my treadmill's walking belt slipping?

Main causes: damaged walking belt, improper belt tension, bad roller bearing…

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Repair guides for treadmills

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

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How to replace a treadmill motor controller

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…

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Repair difficulty
Time required
 15 minutes or less
How to replace a treadmill walking belt

How to replace a treadmill walking belt

A worn walking belt will begin to slow down during use. If your treadmill walking belt is worn out, replace it using the…

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Repair difficulty
Time required
 45 minutes or less
How to replace a treadmill drive motor

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'…

Read more
Repair difficulty
Time required
 15 minutes or less

Effective articles & videos to help repair your fitness & exercise

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

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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.…

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