# Horizon Fitness 5.1T TM137-1US Treadmill Power Switch On Off (PP65)

\## Horizon Fitness 5.1T TM137-1US Treadmill Power Switch On/Off (PP65)

The Horizon Fitness 5.1T TM137-1US treadmill power switch is an on/off replacement switch used to control the treadmill’s main power supply. This component is intended for owners and repair professionals who need to replace a worn, damaged, or non-functioning power switch on a compatible Horizon Fitness treadmill. The product is identified as part number and SKU \*\*PP65\*\*.

## Product Details and Benefits

The \*\*Horizon Fitness 5.1T TM137-1US Treadmill Power Switch On/Off (PP65)\*\* provides the basic switching function needed to turn the treadmill’s power on or off. A properly functioning power switch allows the user to control the machine’s electrical supply from the treadmill’s main switch location.

This replacement power switch may be useful when the original switch no longer operates correctly, shows signs of damage, or needs replacement during treadmill repair. Replacing only the switch can help address a switch-related issue without replacing the entire treadmill or unrelated electrical components. The part is listed under the \*\*Power Switches\*\* category and carries the product identifier \*\*PP65\*\*.

The product page does not provide additional details about the switch’s material, color, dimensions, electrical rating, connector type, package contents, installation method, warranty, or condition. Confirm those details if they are important for your repair before ordering.

## Compatibility and Applications

This power switch is listed for the following treadmill:

\- \*\*Brand:\*\* Horizon Fitness  
\- \*\*Equipment type:\*\* Treadmill  
\- \*\*Model:\*\* Horizon Fitness 5.1T  
\- \*\*Model number:\*\* TM137-1US  
\- \*\*Part number:\*\* PP65  
\- \*\*SKU:\*\* PP65  
\- \*\*Function:\*\* Main power on/off switching

The part is designed for use as a power switch replacement on the specified Horizon Fitness 5.1T TM137-1US treadmill. The product information also includes the reference \*\*TM137-B04120451\*\* as a serial number. Because treadmill parts can vary by production version, compare your machine’s model and serial information with the details shown here before placing an order.

## Why Choose This Product

The PP65 power switch gives you a clearly identified replacement option for a specific Horizon Fitness treadmill model. Its defined model and part-number information makes it easier to compare the replacement with the switch currently installed on your machine. If your treadmill has a faulty on/off switch, using a matching replacement part can help keep the repair focused on the affected component.

## Before You Buy

Verify that your treadmill is a \*\*Horizon Fitness 5.1T with model number TM137-1US\*\*. Also compare the existing switch, part number, and available serial information with \*\*PP65\*\* and \*\*TM137-B04120451\*\* where applicable. Do not rely on the treadmill brand alone, since compatible components can vary between models and production runs. Disconnect the treadmill from its power source and use qualified repair assistance if you are not familiar with electrical component replacement.

## Details

- **Price:** 29.99 USD
- **Vendor:** Horizon Fitness
- **Type:** Power Switches
- **Tags:** All

## Variants

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

## Images

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## Additional Information

- **Condition:** PREOWNED

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> Source: [Cardio Equipment Parts](https://www.cardioequipmentparts.com/products/horizon-fitness-5-1t-tm137-1us-treadmill-power-switch-on-off-pp65)
> Updated: 2026-08-29