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Horizon
Treadmill

Model # T81 Official Horizon treadmill

Here are the diagrams and repair parts for Official Horizon T81 treadmill, as well as links to manuals and error code tables, if available.

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Owner’s manual

Model diagram and schematic

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ALL PARTS
Showing 10 of 112 parts  |
Treadmill Nut 004926-00
#H26

Frame assy diagram

Treadmill nut

Part #004926-00

This item is not returnable
$2.16
Back Order
Exercise Equipment Washer 005196-00
#H27

Frame assy diagram

Exercise equipment washer

Part #005196-00

This item is not returnable
$2.26
In Stock
Grip Pulse 056532-A
#N64

Console assy diagram

Grip pulse

Part #056532-A

$13.99
In Stock
Exercise Equipment Screw 004859-00
#Z09

Frame assy diagram

Exercise equipment screw

Part #004859-00

This item is not returnable
$2.49 | 
29% OFF Phone Price : $3.49
In Stock
Brass Insert Nut, M8-1.25 004975-00
#B59

Console assy diagram

Brass insert nut, m8-1.25

Part #004975-00

This item is not returnable
$2.16
In Stock
Screw 004870-00
#N16

Console assy diagram

Screw

Part #004870-00

This item is not returnable
$2.16
In Stock
Exercise Equipment Nut 004941-00
#H51

Frame assy diagram

Exercise equipment nut

Part #004941-00

This item is not returnable
$2.16
In Stock
Exercise Equipment Wave Washer 005222-00
#H33

Frame assy diagram

Exercise equipment wave washer

Part #005222-00

This item is not returnable
$2.16
In Stock
Afg Wheel 000037-CC
#L05

Frame assy diagram

Afg wheel

Part #000037-CC

This item is not returnable
$2.49
In Stock
Motor Cover 076297
#Q01

Belt assy diagram

Motor cover

Part #076297

$57.36
In Stock

Symptoms for treadmills

Choose a symptom to see related treadmill repairs.

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Why does my treadmill's walking belt slow down?

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

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Why is my treadmill's walking belt slipping?

Main causes: damaged walking belt, improper belt tension, bad roller bearing…

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Why is my treadmill's walking belt off center?

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

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Why won't my treadmill start even though the console display works?

Main causes: missing safety key, bad control console, wiring failure, faulty motor control board, bad drive motor…

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Why is my treadmill's heart rate sensor not accurate?

Main causes: faulty sensors, wiring failure, bad control console…

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Why does my treadmill have no display?

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

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Why won't my treadmill power up?

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

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Repair guides for treadmills

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

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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…

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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'…

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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…

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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.

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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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