Horizon
Treadmill

Model # T84 Official Horizon treadmill

Here are the diagrams and repair parts for Official Horizon T84 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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Showing 10 of 118 parts  |

Afg Treadmill Walking Board Cushion, Center (blue) 000768-D
#B58

Frame assy diagram

Afg treadmill walking board cushion, center (blue)

Part #000768-D

In Stock
Afg Treadmill Walking Board Cushion (orange) 000767-D
#B57

Frame assy diagram

Afg treadmill walking board cushion (orange)

Part #000767-D

$17.69
10% OFF Phone Price : $19.69
In Stock
Drive Belt 004158-00
#R03

Belt assy diagram

Drive belt

Part #004158-00

In Stock
Sleeve 001552-AC
#G03

Frame assy diagram

Sleeve

Part #001552-AC

This item is not returnable
In Stock
Horizon Hardware 079444
#NI

Frame assy diagram

Horizon hardware

Part #079444

In Stock
Fix Plate 001251-F
#L10

Belt assy diagram

Fix plate

Part #001251-F

This item is not returnable
In Stock
Washer 005229-00
#H20

Frame assy diagram

Washer

Part #005229-00

This item is not returnable
In Stock
Link Arm 079408
#AH4

Frame assy diagram

Link arm

Part #079408

In Stock
Horizon Console Cover 076623
#N02

Console assy diagram

Horizon console cover

Part #076623

In Stock
Horizon Cover 076626
#N04

Console assy diagram

Horizon cover

Part #076626

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.…

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