Horizon
Treadmill

Model #CT61 Official Horizon treadmill

Here are the diagrams and repair parts for Horizon CT61 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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For DIY troubleshooting advice and repair guides, visit our repair help section.

Showing 10 of 144 parts

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

Treadmill 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
In Stock
$17.79 | 
10% OFF 
Phone Price: $19.79
Treadmill Power Cord Receptacle (replaces 003363-00, MC0703045A)#P11

Treadmill Diagram

Socket

Part #MC0703023
Replaced by #019749-A
?
Manufacturer substitution
This part replaces MC0703023. 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

Treadmill Diagram

Ac cord

Part #MC0504054A
Replaced by #002169-A
?
Manufacturer substitution
This part replaces MC0504054A. Substitute parts can look different from the original.
In Stock
$46.34 | 
10% OFF 
Was: $51.49
Treadmill On/Off Switch#P02

Treadmill Diagram

Switch

Part #MC0701002
Replaced by #003326-00
?
Manufacturer substitution
This part replaces MC0701002. Substitute parts can look different from the original.
In Stock
$27.79 | 
15% OFF 
Phone Price: $32.79
Treadmill Bolt#B36

Treadmill Diagram

Deck bolt

Part #MZE0105005
Replaced by #004562-00
?
Manufacturer substitution
This part replaces MZE0105005. Substitute parts can look different from the original.
This item is not returnable
In Stock
$2.16
Treadmill Bolt#H14

Treadmill Diagram

Bolt

Part #MJ3022015B
Replaced by #008628-B
?
Manufacturer substitution
This part replaces MJ3022015B. Substitute parts can look different from the original.
This item is not returnable
In Stock
$3.55
Treadmill Screw#P17

Treadmill Diagram

Screw

Part #ME0102042
Replaced by #004381-00
?
Manufacturer substitution
This part replaces ME0102042. Substitute parts can look different from the original.
This item is not returnable
In Stock
$2.16
Exercise Equipment Washer#H27

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
In Stock
$2.26
Screw#N58

Treadmill Diagram

Screw

Part #MZE0107058A
Replaced by #004640-A
?
Manufacturer substitution
This part replaces MZE0107058A. Substitute parts can look different from the original.
This item is not returnable
In Stock
$2.16
Bracket#M05

Treadmill Diagram

Mtr brkt

Part #SP0026038B
Replaced by #1000093557
?
Manufacturer substitution
This part replaces SP0026038B. Substitute parts can look different from the original.
In Stock
$21.49

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.