Horizon
Treadmill

Model # T40 Official Horizon treadmill

Here are the diagrams and repair parts for Official Horizon T40 treadmill, as well as links to manuals and error code tables, if available.

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Not all parts are shown on the diagrams—those parts are labeled NI, for “not illustrated”.

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Model diagram and schematic

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ALL PARTS
Showing 10 of 153 parts  |

Bottle Set MF0821002A

#NI05

All parts diagram

Bottle set

Part #MF0821002A

Replaced by #1000092805

?
Manufacturer substitution
This part replaces MF0821002A. Substitute parts can look different from the original.
This item is not returnable
$16.01
11% OFF Phone Price : $18.01
In Stock
Bottle Set DC200-1000CS

#NI06

All parts diagram

Bottle set

Part #DC200-1000CS

Replaced by #1000092805

?
Manufacturer substitution
This part replaces DC200-1000CS. Substitute parts can look different from the original.
This item is not returnable
$16.01
11% OFF Phone Price : $18.01
In Stock
Bottle MB1102001A

#NI04

All parts diagram

Bottle

Part #MB1102001A

Replaced by #1000092805

?
Manufacturer substitution
This part replaces MB1102001A. Substitute parts can look different from the original.
This item is not returnable
$16.01
11% OFF Phone Price : $18.01
In Stock
T-wrench MZE1002003

#NI08

All parts diagram

T-wrench

Part #MZE1002003

Replaced by #005393-00

?
Manufacturer substitution
This part replaces MZE1002003. Substitute parts can look different from the original.
In Stock
Switch MC0701002
#P02

Treadmill assembly diagram

Switch

Part #MC0701002

Replaced by #003326-00

?
Manufacturer substitution
This part replaces MC0701002. Substitute parts can look different from the original.
$27.79
15% OFF Phone Price : $32.79
In Stock
End Cap MB0609040
#Q19

Treadmill assembly diagram

End cap

Part #MB0609040

Replaced by #000920-00

?
Manufacturer substitution
This part replaces MB0609040. Substitute parts can look different from the original.
This item is not returnable
In Stock
Level Dev MB0301002
#K09

Treadmill assembly diagram

Level dev

Part #MB0301002

Replaced by #000485-00

?
Manufacturer substitution
This part replaces MB0301002. Substitute parts can look different from the original.
This item is not returnable
In Stock
Control Motor SJED08011AA
#M03

Treadmill assembly diagram

Control motor

Part #SJED08011AA

Replaced by #013674-DG

?
Manufacturer substitution
This part replaces SJED08011AA. Substitute parts can look different from the original.
$416.00
$10.00 OFF Phone Price : $426.00
In Stock
Screw MZE0103001
#P13

Treadmill assembly diagram

Screw

Part #MZE0103001

Replaced by #004415-Z

?
Manufacturer substitution
This part replaces MZE0103001. Substitute parts can look different from the original.
This item is not returnable
In Stock
End Cap MB0238002DB
#Q07

Treadmill assembly diagram

End cap

Part #MB0238002DB

Replaced by #000386-DB

?
Manufacturer substitution
This part replaces MB0238002DB. Substitute parts can look different from the original.
In Stock

Symptoms for treadmills

Choose a symptom to see related treadmill repairs.

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

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

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.

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 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…

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'…

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.

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.…