# Horizon Fitness GS950T Treadmill Rear Idler Roller (RP402)

\## Horizon Fitness GS950T Treadmill Rear Idler Roller

The Horizon Fitness GS950T Treadmill Rear Idler Roller is a replacement treadmill roller designed for the rear section of a Horizon Fitness GS950T treadmill. The rear idler roller supports the running belt as it travels around the deck and helps the belt move through its normal rotation. If the original roller shows wear or requires replacement during treadmill service, this part provides a direct product match for the GS950T model listed here.

## Product Details and Benefits

This product is a \*\*rear idler roller\*\* for a treadmill. It belongs to the treadmill roller category and replaces the rear roller assembly used with the specified Horizon Fitness equipment. The roller sits at the back of the treadmill and works with the running belt system during operation.

Replacing a worn or damaged rear idler roller can help restore the treadmill’s roller and belt assembly to working condition. It can also support routine repair and maintenance when a service inspection identifies the rear roller as the part that needs replacement. The roller provides a practical option for repairing an existing treadmill instead of replacing the entire machine.

The product name identifies this part as the \*\*Horizon Fitness GS950T Treadmill Rear Idler Roller\*\*. The associated part number and SKU are \*\*RP402\*\*. The barcode listed for the product is also \*\*RP402\*\*.

## Compatibility and Applications

This replacement rear idler roller is designed for the following equipment:

\- \*\*Brand:\*\* Horizon Fitness  
\- \*\*Equipment type:\*\* Treadmill  
\- \*\*Compatible model:\*\* GS950T  
\- \*\*Part type:\*\* Rear idler roller  
\- \*\*Part number:\*\* RP402  
\- \*\*SKU:\*\* RP402

Use this part for a Horizon Fitness GS950T treadmill when you need to replace the rear idler roller. It is intended for treadmill repair, maintenance, and replacement-part applications. Because treadmill parts can vary between models and production versions, confirm the model and existing component before ordering.

\### Why Choose This Replacement Roller

A model-specific replacement part can make treadmill maintenance more straightforward. This rear idler roller gives you a clearly identified component for the rear belt area of the Horizon Fitness GS950T. It may suit homeowners, treadmill repair technicians, fitness equipment service providers, and anyone maintaining this specific Horizon Fitness model.

The part number \*\*RP402\*\* helps match the product with service records, replacement-part searches, and the component being removed from the treadmill. Using the correct rear roller helps you focus the repair on the affected assembly rather than purchasing an unrelated treadmill roller.

## Before You Buy

Check that your treadmill is a \*\*Horizon Fitness GS950T\*\* and that the rear idler roller you need matches part number \*\*RP402\*\*. Compare the existing component and any available service information before placing an order. The product information provided does not list roller dimensions, material, color, included hardware, installation instructions, warranty details, or package quantity, so verify those requirements if they matter for your repair.

This listing is for the \*\*Horizon Fitness GS950T Treadmill Rear Idler Roller (RP402)\*\*.

## Details

- **Price:** 99.99 USD
- **Vendor:** Horizon Fitness
- **Type:** Treadmill Rollers
- **Tags:** All

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 99.99 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-gs950t-treadmill-rear-idler-roller-rp402)
> Updated: 2026-08-29