# Horizon Fitness 7.4AT-02 Treadmill Front Drive Roller (RP520)

\## Horizon Fitness 7.4AT-02 Treadmill Front Drive Roller (RP520)

The Horizon Fitness 7.4AT-02 Treadmill Front Drive Roller is a replacement treadmill roller designed for the front drive position of a Horizon Fitness 7.4AT-02 treadmill. Also identified as part number \*\*1000465833\*\* and SKU \*\*RP520\*\*, this component may help replace a worn, damaged, or missing original front drive roller during treadmill repair or refurbishment.

## Product Details and Benefits

This product is a \*\*front drive roller for a treadmill\*\*. The front drive roller forms part of the treadmill’s running belt drive system and sits at the front of the walking deck. Replacing the correct roller can help restore the proper arrangement of the treadmill’s belt and drive components when the original part no longer provides a suitable replacement option.

The product is listed under the \*\*Horizon Fitness treadmill rollers\*\* category. Its product identification details are:

\- \*\*Brand:\*\* Horizon Fitness  
\- \*\*Product name:\*\* 7.4AT-02 Treadmill Front Drive Roller  
\- \*\*Product type:\*\* Treadmill front drive roller  
\- \*\*Part number:\*\* 1000465833  
\- \*\*SKU:\*\* RP520  
\- \*\*Barcode:\*\* RP520  
\- \*\*Condition:\*\* Preowned

Because this is a preowned replacement part, its condition may differ from a new factory component. Buyers should review the product photos and listing details carefully before ordering, especially when replacing a part on an older treadmill.

## Compatibility and Applications

The Horizon Fitness 7.4AT-02 Treadmill Front Drive Roller is identified for use with the \*\*Horizon Fitness 7.4AT-02 treadmill\*\*. It is intended to replace the front drive roller on that specific treadmill model, subject to matching the original part and machine details.

This roller may suit treadmill repair projects, equipment refurbishment, or maintenance work involving a Horizon Fitness 7.4AT-02. It is not described as a universal treadmill roller, so customers should not assume compatibility with other Horizon Fitness models or with treadmills from different brands.

The available product information does not provide roller dimensions, material, color, mounting details, included hardware, or installation instructions. A qualified treadmill technician may be helpful if you are unsure how to remove the existing roller or install the replacement.

\## Why Choose This Replacement Part?

Choosing a model-specific front drive roller can make it easier to address a treadmill drive-system repair without replacing the entire machine. The clearly listed part number and SKU also give buyers useful references for comparing the replacement with the roller already installed on their equipment.

This part may be a practical option for owners, repair technicians, and fitness equipment resellers who need a preowned Horizon Fitness treadmill roller for a 7.4AT-02 repair.

## Before You Buy

Confirm that your treadmill is a \*\*Horizon Fitness 7.4AT-02\*\* and compare the existing front drive roller with the product shown in the listing. Verify the part number \*\*1000465833\*\* and SKU \*\*RP520\*\* before placing an order. The source listing also references serial number \*\*TM746B2008C03211\*\*, which buyers may use as an additional identification detail when checking equipment records. Since the part is preowned, inspect all available images and confirm that its condition meets your needs.

## Details

- **Price:** 119.99 USD
- **Vendor:** Horizon Fitness
- **Type:** Treadmill Rollers
- **Tags:** All

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 119.99 USD | In stock |

## Images

- RP520
- RP520
- RP520
- RP520
- RP520
- RP520

## Additional Information

- **PartNumber:** 1000465833
- **Condition:** PREOWNED

---

> Source: [Cardio Equipment Parts](https://www.cardioequipmentparts.com/products/horizon-fitness-7-4at-02-treadmill-front-drive-roller-rp520)
> Updated: 2026-08-29