# Precor EFX 423 447 Elliptical Incline Power Supply  Wire Harness Cable (DC391)

\## Precor EFX 423 / 447 Incline Power Supply Wire Harness Cable

The Precor EFX 423 447 Elliptical Incline Power Supply Wire Harness Cable (DC391) is a replacement data cable for compatible Precor elliptical equipment. It connects with the incline power supply system and helps carry the required electrical or signal connection within the machine. If the original cable is damaged, disconnected, or no longer functions correctly, this replacement harness may help restore the connection between the related components.

This product suits equipment owners, fitness facility operators, and service technicians who need a replacement wire harness for a Precor EFX elliptical. It provides a direct replacement option for the cable identified as part number DC391. Replacing the correct harness can help support proper communication and power transfer within the incline system, depending on the condition of the surrounding components.

## Product Details and Benefits

\- \*\*Product type:\*\* Elliptical incline power supply wire harness cable  
\- \*\*Brand:\*\* Precor  
\- \*\*Part number:\*\* DC391  
\- \*\*SKU:\*\* DC391  
\- \*\*Category:\*\* Data Cables  
\- \*\*Product use:\*\* Replacement cable for the incline power supply system  
\- \*\*Equipment type:\*\* Precor elliptical trainer  
\- \*\*Listed compatibility:\*\* Precor EFX 423 and Precor EFX 447

The wire harness serves as a connected cable assembly within the elliptical. It is intended to replace the corresponding original component rather than function as a general-purpose cable for unrelated equipment. Using the correct part number helps reduce the risk of ordering a cable with a different connection or application.

A replacement harness can be useful during equipment repair, preventive maintenance, or troubleshooting. If an incline-related function has stopped working, the cable should be inspected along with the power supply, connectors, and other associated components. A damaged or improperly connected harness may affect the operation of the system, but replacing the cable alone may not resolve a problem caused by another part.

## Compatibility and Applications

The DC391 wire harness cable is listed for \*\*Precor EFX 423 and EFX 447 elliptical machines\*\*. It is designed as a replacement part for the incline power supply wire harness used with these models. The cable is not described as a universal elliptical cable, so buyers should confirm the exact equipment model and existing part number before ordering.

This part may suit repairs performed by a qualified service technician or by an owner familiar with elliptical maintenance. Installation should match the original cable routing and connector positions. Because the product source does not provide installation instructions, connector details, cable length, or technical service procedures, consult the equipment documentation or a qualified technician when needed.

## Why Choose This Product

The Precor DC391 replacement cable gives you a clearly identified part for servicing a compatible EFX elliptical. Its model-specific listing and matching SKU make it easier to compare the replacement with the cable already installed in your machine. Selecting the correct harness can help avoid delays caused by ordering a cable intended for another Precor model or system.

## Before You Buy

Verify that your machine is a \*\*Precor EFX 423 or EFX 447\*\* and that the existing cable carries the part number \*\*DC391\*\*. Check the original harness, connectors, and equipment service information before placing an order. The available product information does not specify dimensions, materials, color, warranty, or package quantity.

## Details

- **Price:** 29.99 USD
- **Vendor:** Precor
- **Type:** Data Cables
- **Tags:** All

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 29.99 USD | In stock |

## Images

- DC391
- DC391
- DC391
- DC391

## Additional Information

- **Condition:** PREOWNED

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> Source: [Cardio Equipment Parts](https://www.cardioequipmentparts.com/products/precor-efx-423-447-elliptical-incline-power-supply-wire-harness-cable-dc391)
> Updated: 2026-08-29