Horizon
Treadmill

Model #T72 Official Horizon treadmill

Here are the diagrams and repair parts for Horizon T72 treadmill, as well as links to manuals and error code tables, if available.

There are a couple of ways to find the part or diagram you need:

  • Click a diagram to see the parts shown on that diagram.
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Not all parts are shown on the diagrams—those parts are labeled NI, for “not illustrated”.

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

Owner’s manual

Showing 10 of 145 parts

Treadmill Walking Belt Lubricant (replaces 016591-Z, DC200-1000CS, MB1102001A)#NI

Frame assy Diagram

Nottle set

Part #016591-Z
Replaced by #1000092805
?
Manufacturer substitution
This part replaces 016591-Z. Substitute parts can look different from the original.
This item is not returnable
In Stock
$17.79 | 
10% OFF 
Phone Price: $19.79
Treadmill Power Cord Receptacle (replaces 003363-00, MC0703045A)#P11

Frame assy Diagram

Socket

Part #003363-00
Replaced by #019749-A
?
Manufacturer substitution
This part replaces 003363-00. Substitute parts can look different from the original.
This item is not returnable
In Stock
$9.62 | 
9% OFF 
Phone Price: $10.62
Treadmill Power Cord#P07

Frame assy Diagram

Treadmill power cord

Part #002169-A
In Stock
$46.34 | 
10% OFF 
Was: $51.49
Treadmill Speed Sensor#NI

Frame assy Diagram

Treadmill speed sensor

Part #060295-CA
In Stock
$26.79 | 
16% OFF 
Phone Price: $31.79
Treadmill On/Off Switch#P02

Frame assy Diagram

In Stock
$27.79 | 
15% OFF 
Phone Price: $32.79
Treadmill Bolt#B36

Belt assy Diagram

Treadmill bolt

Part #004562-00
This item is not returnable
In Stock
$2.16
Hex Wrench, 6-mm#NI

Frame assy Diagram

T-wrench

Part #005393-Z
Replaced by #005393-00
?
Manufacturer substitution
This part replaces 005393-Z. Substitute parts can look different from the original.
In Stock
$8.50
Treadmill Drive Motor (replaces 1000106039)#M01

Belt assy Diagram

Drive motor

Part #016154-Z
Replaced by #1000111822
?
Manufacturer substitution
This part replaces 016154-Z. Substitute parts can look different from the original.
In Stock
$334.89 | 
$10.00 OFF 
Phone Price: $344.89
Suprt.tube#C27

Frame assy Diagram

Suprt.tube

Part #014893-AA
In Stock
$30.81
Washer#M09

Belt assy Diagram

Washer

Part #005044-00
This item is not returnable
In Stock
$2.16

Symptoms for treadmills

Choose a symptom to see related treadmill repairs.

Main causes: faulty sensors, wiring failure, bad control console
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: 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
Main causes: rear roller out of alignment, damaged walking belt, bad roller

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 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
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 these steps.

Repair difficulty
Time required
 45 minutes or less
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

Articles and videos common to all fitness & exercise

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

June 29, 2022

Top questions about Sears and Sears PartsDirect

By Lyle Weischwill

Get answers to frequently asked questions about Sears and Sears PartsDirect.