# Horizon Fitness 1.1T Treadmill RPM Speed Sensor (SS129)

\## Horizon Fitness 1.1T Treadmill RPM Speed Sensor SS129

The Horizon Fitness 1.1T Treadmill RPM Speed Sensor SS129 is a replacement treadmill sensor designed to detect the running belt or motor speed within a compatible Horizon Fitness treadmill system. The sensor provides RPM speed information that helps the treadmill monitor operation during use. If the original sensor has failed, become unreliable, or requires replacement during service, this part can help restore the treadmill’s speed-sensing function.

This product is identified as part number \*\*SS129\*\* and SKU \*\*SS129\*\*. It belongs to the \*\*treadmill sensor\*\* category and is listed for the \*\*Horizon Fitness 1.1T treadmill\*\*. Its purpose is to replace the original RPM speed sensor component rather than serve as a general-purpose electronic sensor for other equipment.

## Product Details and Benefits

The SS129 RPM speed sensor supports the treadmill’s internal speed-monitoring system. By sensing rotational speed, the component allows the equipment to receive the information it needs to track operation. A properly matched replacement sensor can help address issues related to missing, inconsistent, or inaccurate speed feedback when the existing sensor no longer works as intended.

This part suits treadmill repair, maintenance, and refurbishment work. It may help technicians, service providers, and treadmill owners replace a faulty original sensor without replacing the entire treadmill or unrelated components. Using the correct part number also makes it easier to match the replacement with the treadmill’s original specification.

The product listing does not provide dimensions, material, color, electrical ratings, installation instructions, package quantity, warranty information, or certification details. Refer to the product information and your treadmill documentation for any technical information required before installation.

## Compatibility and Applications

The \*\*Horizon Fitness 1.1T Treadmill RPM Speed Sensor SS129\*\* is a replacement part for the \*\*Horizon Fitness 1.1T treadmill\*\*. It is designed to replace the treadmill’s original RPM speed sensor and restore the component responsible for speed detection.

Use this part when servicing a compatible Horizon Fitness 1.1T treadmill and the original RPM sensor needs replacement. The available product information also lists the serial number \*\*TM133-A05010316\*\*. Because treadmill versions can vary, confirm that your equipment matches the listed model and identifying information before ordering.

\## Why Choose This Replacement Sensor?

Choosing a replacement sensor by its exact part number can reduce the risk of ordering an unsuitable treadmill component. The SS129 provides a clearly identified replacement option for the Horizon Fitness 1.1T treadmill’s RPM speed-sensing system. It can support targeted repairs when the sensor is the part that requires attention, helping you avoid replacing larger assemblies unnecessarily.

This product may suit homeowners maintaining their own treadmill, repair technicians sourcing a specific part, or businesses servicing Horizon Fitness exercise equipment.

## Before You Buy

Verify the following details before placing your order:

\- \*\*Brand:\*\* Horizon Fitness  
\- \*\*Equipment:\*\* 1.1T treadmill  
\- \*\*Product type:\*\* RPM speed sensor  
\- \*\*Part number:\*\* SS129  
\- \*\*SKU:\*\* SS129  
\- \*\*Listed serial number:\*\* TM133-A05010316

Compare the part number with the sensor or service information for your treadmill. If you cannot confirm compatibility, consult the treadmill’s manual or a qualified service professional before ordering or installing the replacement.

## Details

- **Price:** 29.99 USD
- **Vendor:** Horizon Fitness
- **Type:** Treadmill Sensors
- **Tags:** All

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 29.99 USD | In stock |

## Images

- SS129
- SS129
- SS129
- SS129
- SS129

## Additional Information

- **Condition:** PREOWNED

---

> Source: [Cardio Equipment Parts](https://www.cardioequipmentparts.com/products/horizon-fitness-1-1t-treadmill-rpm-speed-sensor-ss129)
> Updated: 2026-08-29