Get free shipping on your order, with any water filter subscription. Find my filter

Open Hamburger Menu
Sears Parts Direct
Tips to find your model number
Official Horizon Treadmill parts

Horizon Treadmill Parts — Browse All Models

Horizon treadmills give you the ability to work out at your convenience inside your own home. The powerful drive motor and dependable controls in your Horizon treadmill help you get the exercise you need to stay fit.

When your Horizon treadmill isn't working as it should, get the repair parts you need to fix the problem at Sears PartsDirect.

Horizon 910T Treadmill

Horizon 910T treadmill

Shop Parts
31 Parts
Horizon CST3.6 Treadmill

Horizon CST3.6 treadmill

Shop Parts
101 Parts
Horizon 5.0T Treadmill

Horizon 5.0T treadmill

Shop Parts
123 Parts
Horizon 2.0T Treadmill

Horizon 2.0T treadmill

Shop Parts
117 Parts
Horizon ADVANCE 400 Treadmill

Horizon ADVANCE 400 treadmill

Shop Parts
164 Parts
Horizon T30 Treadmill

Horizon T30 treadmill

Shop Parts
147 Parts
Horizon PARAGON II Treadmill

Horizon PARAGON II treadmill

Shop Parts
146 Parts
Horizon T40 Treadmill

Horizon T40 treadmill

Shop Parts
149 Parts
Horizon QUANTUM Treadmill

Horizon QUANTUM treadmill

Shop Parts
150 Parts
Horizon TSC4 Elite Treadmill

Horizon TSC4 elite treadmill

Shop Parts
162 Parts

Frequently bought Horizon parts

Treadmill Drive Motor 1000111822

Drive Motor

Part #016154-Z

Replaced by #1000111822

Info Icon
Manufacturer substitution
This part replaces 016154-Z. Substitute parts can look different from the original.
In Stock
$287.04
$12.00 OFF Phone Price : $299.04Info Icon
Minus Item
Qty
Plus Item
Motor Set 016118-Z

Motor Set

Part #SZTM103MTR

Replaced by #016118-Z

Info Icon
Manufacturer substitution
This part replaces SZTM103MTR. Substitute parts can look different from the original.
In Stock
$226.79
Minus Item
Qty
Plus Item
Treadmill Drive Motor 1000111822

Drive Mtr

Part #SZTM113MTR

Replaced by #1000111822

Info Icon
Manufacturer substitution
This part replaces SZTM113MTR. Substitute parts can look different from the original.
In Stock
$287.04
$12.00 OFF Phone Price : $299.04Info Icon
Minus Item
Qty
Plus Item
Treadmill Drive Motor 016172-Z

Drive Mtr

Part #SZTM116MTR

Replaced by #016172-Z

Info Icon
Manufacturer substitution
This part replaces SZTM116MTR. Substitute parts can look different from the original.
In Stock
$380.51
$12.00 OFF Phone Price : $392.51Info Icon
Minus Item
Qty
Plus Item
Horizon Drive Belt 004162-00

Belt

Part #MD0602013

Replaced by #004162-00

Info Icon
Manufacturer substitution
This part replaces MD0602013. Substitute parts can look different from the original.
In Stock
$43.47
Minus Item
Qty
Plus Item

Popular maintenance items for Treadmills

Treadmill Drive Belt 224019

Treadmill Drive Belt

$13.87
13% OFF Phone Price : $15.87Info Icon
Minus Item
Qty
Plus Item
Image Treadmill Rear End Cap 157004

Image Treadmill Rear End Cap

In Stock
$27.24
18% OFF Phone Price : $33.24Info Icon
Minus Item
Qty
Plus Item
Image Treadmill Walking Belt 173063

Image Treadmill Walking Belt

$49.80
11% OFF Phone Price : $55.80Info Icon
Minus Item
Qty
Plus Item
Treadmill Walking Belt 142851

Treadmill Walking Belt

$70.80
8% OFF Phone Price : $76.80Info Icon
Minus Item
Qty
Plus Item
Treadmill Walking Belt 270359

Treadmill Walking Belt

In Stock
$115.61
9% OFF Phone Price : $127.61Info Icon
Minus Item
Qty
Plus Item
Treadmill Incline Motor Sensor Kit 286707

Treadmill Incline Motor Sensor Kit

Part #286707
This item is not returnable
$17.94
10% OFF Phone Price : $19.94Info Icon
Minus Item
Qty
Plus Item

Most common Horizon treadmill parts that need replacing

  • Control console. The treadmill console controls all the functions of Horizon treadmill. The console features a digital display for showing workout information and settings to the user.
  • Drive motor. The treadmill drive motor rotates the drive belt, which spins the front belt roller to move the walking belt.
  • Motor controller. The treadmill motor controller regulates the speed of the drive motor to move the walking belt at the desired pace.
  • Reed switch. The treadmill reed switch detects the walking belt speed and sends speed signals to the console and controller.
  • Walking belt. The treadmill walking belt rotates around the front and rear rollers and provides a moving surface to walk on.

How to fix your Horizon treadmill when its belt is slipping

A damaged or loose walking belt will slip on the front roller. A bad bearing on a roller can cause the roller to bind and the walking belt to slip.

Check both rollers to make sure that they spin freely. If a roller binds up because its bearing is bad, replace the roller.

Check the walking belt for tears and replace the belt if torn or damaged.

Check walking belt tension by lifting the middle edge of each side of the belt. You should be able to lift the belt’s edge up 2-3 inches above the walking board. Tighten belt tension if you can lift the edges of the walking belt more than 3 inches.

Sears PartsDirect has the Horizon treadmill motor parts you need

We carry Horizon treadmill motor parts as well as many other parts for your treadmill. Look up the repair parts you need using our convenient parts list diagrams for your treadmill model. Order the replacement parts you need and get your treadmill fixed fast.

Parts & More

Bottom-Mount Refrigerator
Downdraft Ventilation System
Front-Engine Lawn Tractor
Furnace
Gas Pressure Washer
Gas Snowblower
Laundry Center
Parts
Power Saw
Rear-Engine Riding Mower
Side-By-Side Refrigerator
Television
Tiller
Top-Mount Refrigerator
Toys & Games
Washer