Treadmill

Model # T54 Official Horizon treadmill

Here are the diagrams and repair parts for Official Horizon T54 treadmill, as well as links to manuals and error code tables, if available.

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T54 Fitness & Exercise
Power Board SZTM115MCB
#M03

Horizon treadmill diagram

Power board

Part #SZTM115MCB

Replaced by #032669-IF

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Manufacturer substitution
This part replaces SZTM115MCB. Substitute parts can look different from the original.
This item is not returnable
$227.03
5% OFF Phone Price : $239.03
In Stock
Socket MC0703023
#P11

Horizon treadmill diagram

Socket

Part #MC0703023

Replaced by #019749-A

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Manufacturer substitution
This part replaces MC0703023. Substitute parts can look different from the original.
This item is not returnable
$9.62
9% OFF Phone Price : $10.62
In Stock
Breaker MC0702011
#P04

Horizon treadmill diagram

Breaker

Part #MC0702011

Replaced by #003346-00

?
Manufacturer substitution
This part replaces MC0702011. Substitute parts can look different from the original.
In Stock
Washer MZE0505033
#H27

Horizon treadmill diagram

Washer

Part #MZE0505033

Replaced by #005196-00

?
Manufacturer substitution
This part replaces MZE0505033. Substitute parts can look different from the original.
This item is not returnable
In Stock
Safety Key S140115001
#N24

Horizon treadmill diagram

Safety key

Part #S140115001

Replaced by #016167-Z

?
Manufacturer substitution
This part replaces S140115001. Substitute parts can look different from the original.
In Stock
Elastomer MB0502016D
#B57

Horizon 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
Cable MC0503001B
#P08

Horizon treadmill diagram

Cable

Part #MC0503001B

Replaced by #002124-B

?
Manufacturer substitution
This part replaces MC0503001B. Substitute parts can look different from the original.
This item is not returnable
In Stock
Screw ME0107049A
#N59

Horizon treadmill diagram

Screw

Part #ME0107049A

Replaced by #004635-A

?
Manufacturer substitution
This part replaces ME0107049A. Substitute parts can look different from the original.
This item is not returnable
In Stock
Fix Plate MJ1040005C
#B52

Horizon treadmill diagram

Fix plate

Part #MJ1040005C

Replaced by #007490-C

?
Manufacturer substitution
This part replaces MJ1040005C. Substitute parts can look different from the original.
This item is not returnable
In Stock
Grip Pulse MC0712021B
#N26

Horizon treadmill diagram

Grip pulse

Part #MC0712021B

Replaced by #003432-B

?
Manufacturer substitution
This part replaces MC0712021B. Substitute parts can look different from the original.
$21.96
21% OFF Phone Price : $27.96
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: damaged walking belt, improper belt tension, bad roller bearing…

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

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

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

Repair guides for treadmills

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

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…

Repair difficulty
Time required
 15 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'…

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

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…

Repair difficulty
Time required
 30 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.

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.…