# Precor EFX576i Elliptical Step Up Tensioner Pulley Drive 4972R (MX566)

## Product Introduction

The Precor EFX576i Elliptical Step Up Tensioner Pulley Drive 4972R is a preowned replacement pulley assembly for the step-up drive system in a Precor EFX576i elliptical. This component helps support the machine’s drive mechanism by maintaining tension and guiding movement within the pulley system. If the original tensioner pulley is worn, damaged, or missing, this replacement part may help restore the proper operation of the elliptical’s step-up drive assembly.

This product is listed under the local product name \*\*MX566\*\* and carries the Precor part number \*\*PPP000000045974101\*\*.

## Product Details and Benefits

The \*\*Precor EFX576i step-up tensioner pulley drive 4972R\*\* is intended for use as a replacement component rather than as a complete elliptical machine or full drive system. Its role is connected to the belt-and-pulley mechanism that transfers movement through the step-up drive area.

Replacing a damaged pulley assembly can help address issues such as abnormal drive movement, visible wear, or a pulley that no longer functions correctly within the mechanism. Installing the correct replacement part also helps you avoid replacing larger assemblies when only one drive component requires attention.

Because this item is preowned, its condition may show signs of previous use. Buyers should review the product photos and listing details carefully before ordering. The product page identifies this item as a used Precor component and does not provide separate information about its construction material, dimensions, color, warranty, or package contents.

## Compatibility and Applications

This part is identified for the following equipment:

\- \*\*Brand:\*\* Precor  
\- \*\*Equipment type:\*\* Elliptical fitness machine  
\- \*\*Compatible model:\*\* Precor EFX576i  
\- \*\*Component:\*\* Step-up tensioner pulley drive  
\- \*\*Drive designation:\*\* 4972R  
\- \*\*Part number:\*\* PPP000000045974101  
\- \*\*SKU / local product name:\*\* MX566  
\- \*\*Condition:\*\* Preowned

The pulley drive is intended for the step-up drive system used in the \*\*Precor EFX576i elliptical\*\*. It is suitable for repair or parts replacement work when the existing tensioner pulley drive matches the listed component.

## Why Choose This Product

Choosing a matching replacement pulley can make a repair more focused and practical. This part may suit owners, fitness equipment technicians, and repair businesses maintaining a Precor EFX576i elliptical. A correct component match can help reduce compatibility problems during service and provide a replacement for an original drive part that has become worn or damaged.

The preowned condition may also make this item useful when sourcing an original Precor component for an older or previously serviced machine.

## Before You Buy

Confirm that your equipment is a \*\*Precor EFX576i elliptical\*\* and compare the existing component with the product photos and identification details. Check the \*\*4972R\*\* designation, part number \*\*PPP000000045974101\*\*, and SKU \*\*MX566\*\* before placing an order. The listing also records the serial number \*\*AA72L06060111\*\* for this item.

This product is the step-up tensioner pulley drive only. The listing does not state that it includes additional belts, brackets, fasteners, tools, or other elliptical drive components. Verify the required part and installation needs with a qualified fitness equipment technician if you are unsure.

## Details

- **Price:** 129.99 USD
- **Vendor:** Precor
- **Type:** Miscellaneous
- **Tags:** All

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 129.99 USD | In stock |

## Images

- MX566
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## Additional Information

- **Condition:** PREOWNED

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> Source: [Cardio Equipment Parts](https://www.cardioequipmentparts.com/products/precor-efx576i-elliptical-step-up-tensioner-pulley-drive-4972r-mx566)
> Updated: 2026-08-29