Horizon
Treadmill

Model # T4 Official Horizon treadmill

Here are the diagrams and repair parts for Official Horizon T4 treadmill, as well as links to manuals and error code tables, if available.

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Model diagram and schematic

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Showing 10 of 143 parts  |

Pcb Assembly SJED08089ED
#M03

Treadmill diagram

Pcb assembly

Part #SJED08089ED

Replaced by #032669-IF

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Manufacturer substitution
This part replaces SJED08089ED. Substitute parts can look different from the original.
This item is not returnable
$227.23
5% OFF Phone Price : $239.23
In Stock
Switch MC0701002
#P07

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
Screw ME0102042
#P17

Treadmill diagram

Screw

Part #ME0102042

Replaced by #004381-00

?
Manufacturer substitution
This part replaces ME0102042. Substitute parts can look different from the original.
This item is not returnable
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
In Stock
Spd Sensor SSED080434DA
#KIT

Treadmill diagram

Spd sensor

Part #SSED080434DA

Replaced by #060295-DA

?
Manufacturer substitution
This part replaces SSED080434DA. Substitute parts can look different from the original.
In Stock
Drive Belt MD0602003
#R03

Treadmill diagram

Drive belt

Part #MD0602003

Replaced by #004158-00

?
Manufacturer substitution
This part replaces MD0602003. Substitute parts can look different from the original.
In Stock
Fix Plate MJ1017037D
#B08

Treadmill diagram

Fix plate

Part #MJ1017037D

Replaced by #007387-E

?
Manufacturer substitution
This part replaces MJ1017037D. Substitute parts can look different from the original.
In Stock
Safety Key S140209001
#AN3

Treadmill diagram

Safety key

Part #S140209001

Replaced by #082397

?
Manufacturer substitution
This part replaces S140209001. Substitute parts can look different from the original.
$41.19
13% OFF Phone Price : $47.19
In Stock
Elastomer MB0502004C
#B29

Treadmill diagram

Elastomer

Part #MB0502004C

Replaced by #000760-E

?
Manufacturer substitution
This part replaces MB0502004C. Substitute parts can look different from the original.
In Stock
Rubber Pad MB0607001B
#M07

Treadmill diagram

Rubber pad

Part #MB0607001B

Replaced by #056374-AA

?
Manufacturer substitution
This part replaces MB0607001B. Substitute parts can look different from the original.
This item is not returnable
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.…