# Precor EFX5.21i Elliptical Stair Arm Wheel (WP105)

\# Precor EFX5.21i Elliptical Stair Arm Wheel (WP105)

The Precor EFX5.21i Elliptical Stair Arm Wheel (WP105) is a replacement wheel for the stair arm assembly on a Precor EFX5.21i elliptical machine. This component supports the movement of the stair arm and is intended for equipment owners, fitness facilities, and service professionals who need to replace a wheel on a compatible Precor elliptical. If the existing stair arm wheel is worn, damaged, or missing, this part can help return the assembly to its intended configuration.

## Product Details and Benefits

This product is identified as the \*\*Precor EFX5.21i Elliptical Stair Arm Wheel\*\*. Its part number and SKU are \*\*WP105\*\*. The product category is \*\*Wheels\*\*, and the listed brand is \*\*Precor\*\*.

The stair arm wheel forms part of the elliptical’s stair arm mechanism. Replacing the correct wheel can help maintain the proper fit and movement of that assembly. A matching replacement part also helps avoid using an incorrectly sized or incompatible wheel, which may not fit the equipment as intended.

This product is listed specifically for the Precor EFX5.21i elliptical model. Its focused model compatibility makes it useful when servicing or restoring the stair arm area of the machine. Before ordering, compare the part number and equipment model with the information on your elliptical or service documentation.

## Compatibility and Applications

The \*\*Precor EFX5.21i Elliptical Stair Arm Wheel (WP105)\*\* is designed for use with the following equipment:

\- \*\*Brand:\*\* Precor  
\- \*\*Compatible model:\*\* EFX5.21i elliptical  
\- \*\*Equipment type:\*\* Elliptical machine  
\- \*\*Application:\*\* Stair arm wheel replacement  
\- \*\*Part number/SKU:\*\* WP105

This wheel is intended for the stair arm section of the Precor EFX5.21i. It is not identified as a general-purpose wheel or as a universal replacement for other elliptical brands or models. Use the stated model and part number when checking whether it matches your equipment.

## Why Choose This Product

Choosing a part made for the Precor EFX5.21i helps you focus on the specific component required for the stair arm assembly. The WP105 designation gives you a clear reference for ordering, service work, and replacement-part records. It can be a practical choice when you want to address a wheel-related issue without replacing the entire elliptical or stair arm assembly.

The part may suit home gym owners, commercial fitness operators, equipment technicians, and repair departments working with Precor EFX5.21i machines.

## Before You Buy

Confirm that your elliptical is a \*\*Precor EFX5.21i\*\* and that the required part is the \*\*stair arm wheel\*\*. Check the existing component, equipment records, or repair documentation for the \*\*WP105\*\* part number before placing an order. The available product information does not specify dimensions, material, color, package quantity, installation instructions, condition, or warranty details. Contact the seller or a qualified equipment technician if you need those details or help confirming fitment.

\*\*Product:\*\* Precor EFX5.21i Elliptical Stair Arm Wheel  
\*\*Part number/SKU:\*\* WP105  
\*\*Brand:\*\* Precor

## Details

- **Price:** 49.99 USD
- **Vendor:** Precor
- **Type:** Wheels
- **Tags:** All

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 49.99 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/precor-efx5-21i-elliptical-stair-arm-wheel-wp105)
> Updated: 2026-08-29