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Horizon
Treadmill

Model # T70 Official Horizon treadmill

Here are the diagrams and repair parts for Official Horizon T70 treadmill, as well as links to manuals and error code tables, if available.

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  • In the search box below, enter all or part of the part number or the part’s name.

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.

Model diagram and schematic

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ALL PARTS
Showing 10 of 156 parts  |
Bottle Set MF0821002A
#NI

Treadmill assy 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
Nut MZE0204005
Nut

Part #MZE0204005

Replaced by #004926-00

?
Manufacturer substitution
This part replaces MZE0204005. Substitute parts can look different from the original.
This item is not returnable
$2.16
In Stock
Breaker MC0702011
#P04

Treadmill assy 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
Switch MC0701002
#P03

Treadmill assy 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
Drive Mtr SZTM113MTR
#M01

Treadmill assy diagram

Drive mtr

Part #SZTM113MTR

Replaced by #1000111822

?
Manufacturer substitution
This part replaces SZTM113MTR. Substitute parts can look different from the original.
$324.84 | 
$10.00 OFF Phone Price : $334.84
In Stock
Bolt MZE0112046
#H44

Treadmill assy diagram

Bolt

Part #MZE0112046

Replaced by #004735-00

?
Manufacturer substitution
This part replaces MZE0112046. Substitute parts can look different from the original.
This item is not returnable
$2.21
In Stock
Drive Belt MD0602001
#R03

Treadmill assy diagram

Drive belt

Part #MD0602001

Replaced by #1000109551

?
Manufacturer substitution
This part replaces MD0602001. Substitute parts can look different from the original.
$55.69 | 
8% OFF Phone Price : $60.69
In Stock
L Hbar Set SZTM162HDB-L
#AG1

Treadmill assy diagram

L hbar set

Part #SZTM162HDB-L

$29.28
In Stock
Cable MC0501158B
#P01

Treadmill assy diagram

Cable

Part #MC0501158B

Replaced by #002073-B

?
Manufacturer substitution
This part replaces MC0501158B. Substitute parts can look different from the original.
$17.00
In Stock
Screw MZE0104203
#R04

Treadmill assy diagram

Screw

Part #MZE0104203

Replaced by #004486-00

?
Manufacturer substitution
This part replaces MZE0104203. Substitute parts can look different from the original.
This item is not returnable
$3.79
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…

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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 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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