# True Fitness TTZ540 HRCO Treadmill Front Drive Roller (RP638)

## Product Introduction

The True Fitness TTZ540 HRCO Treadmill Front Drive Roller is a preowned replacement part for the front drive system of a compatible True Fitness treadmill. It helps support the treadmill belt’s movement around the front of the running deck and replaces an original front drive roller that may be worn, damaged, or no longer suitable for continued use. This treadmill roller may help extend the service life of an existing machine without replacing the entire treadmill.

This product is listed as \*\*RP638\*\* and carries part number \*\*70352400\*\*. It is intended for customers, fitness equipment technicians, and repair shops looking for a front drive roller for the \*\*True Fitness TTZ540 HRCO treadmill\*\*.

## Product Details and Benefits

The True Fitness TTZ540 HRCO Front Drive Roller is a replacement treadmill component designed for the machine’s front roller position. The front drive roller works with the treadmill belt and drive system during operation. Replacing a worn roller can support proper belt movement and help restore the machine’s original component arrangement.

This is a \*\*preowned fitness equipment part\*\*. Each part has been carefully inspected by skilled technicians before sale to help confirm its condition and suitability for use. Because this is a used replacement component, it offers a practical option for repairing an existing True Fitness treadmill while avoiding the cost and waste associated with replacing a complete machine.

The product may be useful when servicing a treadmill with a worn or damaged front drive roller. It can also help repair professionals source a specific component for maintenance work on an older or heavily used True Fitness unit.

## Compatibility and Applications

This front drive roller is identified for the following equipment:

\- \*\*Brand:\*\* True Fitness  
\- \*\*Treadmill model:\*\* TTZ540 HRCO  
\- \*\*Component:\*\* Front drive roller  
\- \*\*Product category:\*\* Treadmill roller  
\- \*\*Part number:\*\* 70352400  
\- \*\*SKU:\*\* RP638  
\- \*\*Condition:\*\* Preowned  
\- \*\*Associated serial number:\*\* 07-12208E

The part is designed as a replacement for the front drive roller used in the True Fitness TTZ540 HRCO treadmill. It is intended for treadmill repair, maintenance, and component replacement. Compatibility should be confirmed before ordering, especially if your machine has been modified or includes a different roller assembly.

## Why Choose This Product

Choosing a preowned True Fitness treadmill roller can provide a lower-cost way to maintain an existing fitness machine. Reusing a serviceable component also helps extend the life of the treadmill and reduces unnecessary waste. This part is specifically identified by its model, position, and part number, making it easier to compare with the component currently installed in your equipment.

## Before You Buy

Confirm that your treadmill is a \*\*True Fitness TTZ540 HRCO\*\* and compare the existing front drive roller with part number \*\*70352400\*\* or SKU \*\*RP638\*\*. Check the roller position and any identifying details before placing an order. Dimensions, material specifications, and installation instructions are not provided with the listing.

Product photos are for reference only. The seller carries multiple units, so the part you receive may look slightly different from the images. The model and component will remain the exact listed type. For additional product information or compatibility questions, contact the seller before purchase.

## Details

- **Price:** 149.99 USD
- **Vendor:** True Fitness
- **Type:** Treadmill Rollers
- **Tags:** All

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 149.99 USD | In stock |

## Images

- RP638
- RP638
- RP638
- RP638
- RP638
- RP638

## Additional Information

- **PartNumber:** 70352400
- **Condition:** PREOWNED

---

> Source: [Cardio Equipment Parts](https://www.cardioequipmentparts.com/products/true-fitness-ttz540-hrco-treadmill-front-drive-roller-rp638)
> Updated: 2026-08-29