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Horizon
Treadmill

Model # 730T Official Horizon treadmill

Here are the diagrams and repair parts for Official Horizon 730T 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 117 parts  |
Horizon Treadmill Walking Belt 1000107269
#R03

Treadmill diagram

Horizon treadmill walking belt

Part #1000107269

$34.01
In Stock
Wheel MB0103040CA
#B24

Treadmill diagram

Wheel

Part #MB0103040CA

Replaced by #000037-CA

?
Manufacturer substitution
This part replaces MB0103040CA. Substitute parts can look different from the original.
This item is not returnable
$2.26
In Stock
Breaker MC0702011
#P12

Treadmill diagram

Breaker

Part #MC0702011

Replaced by #003346-00

?
Manufacturer substitution
This part replaces MC0702011. Substitute parts can look different from the original.
$14.80
In Stock
Screw MZE0104074
#M08

Treadmill diagram

Screw

Part #MZE0104074

Replaced by #004481-Z

?
Manufacturer substitution
This part replaces MZE0104074. Substitute parts can look different from the original.
This item is not returnable
$2.16
In Stock
Washer MZE0505033
#K23

Treadmill diagram

Washer

Part #MZE0505033

Replaced by #005196-00

?
Manufacturer substitution
This part replaces MZE0505033. Substitute parts can look different from the original.
This item is not returnable
$2.26
In Stock
Screw MZE0107023
Screw

Part #MZE0107023

Replaced by #004620-00

?
Manufacturer substitution
This part replaces MZE0107023. Substitute parts can look different from the original.
This item is not returnable
$2.16
In Stock
Fix Plate MJ1040005C
#H15

Treadmill diagram

Fix plate

Part #MJ1040005C

Replaced by #007490-C

?
Manufacturer substitution
This part replaces MJ1040005C. Substitute parts can look different from the original.
This item is not returnable
$2.16
In Stock
Nylon Nut ME0204025
#B32

Treadmill diagram

Nylon nut

Part #ME0204025

Replaced by #004941-00

?
Manufacturer substitution
This part replaces ME0204025. Substitute parts can look different from the original.
This item is not returnable
$2.16
In Stock
Screw MZE0102008
#Z10

Treadmill diagram

Screw

Part #MZE0102008

Replaced by #004355-00

?
Manufacturer substitution
This part replaces MZE0102008. Substitute parts can look different from the original.
This item is not returnable
$2.16
In Stock
Grip Pulse MC0712063A
#N63

Treadmill diagram

Grip pulse

Part #MC0712063A

Replaced by #039042-A

?
Manufacturer substitution
This part replaces MC0712063A. Substitute parts can look different from the original.
$10.82
In Stock

Symptoms for treadmills

Choose a symptom to see related treadmill repairs.

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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…

Read more

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 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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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…

Read more
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…

Read more
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'…

Read more
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.

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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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