# Horizon Fitness Elite 3.1T TM135-1US Treadmill Wire Harness Cable (DC509)

\## Horizon Fitness Elite 3.1T TM135-1US Treadmill Wire Harness Cable

The Horizon Fitness Elite 3.1T TM135-1US Treadmill Wire Harness Cable is a preowned replacement data cable for the Horizon Fitness Elite 3.1T treadmill. It carries the product code DC509 and is intended for customers replacing a matching wire harness cable on compatible treadmill equipment. If the original cable is missing, damaged, or no longer suitable for use, this part may help restore the required cable connection within the treadmill system.

## Product Details and Benefits

This product is a treadmill wire harness cable listed in the Data Cables category. The cable serves as a replacement component rather than a complete treadmill assembly or electronic control board. Its compact, part-specific design makes accurate identification important before ordering.

Replacing a damaged or missing harness cable can help you address a cable-related issue without replacing the entire treadmill. A matching replacement part also allows you to maintain the existing Horizon Fitness Elite 3.1T equipment while focusing on the specific component that needs attention.

The product is listed as \*\*preowned\*\*, so it may show signs of previous use. Buyers should review the product photos and condition details on the store page before purchase. The listing does not provide dimensions, material, color, connector details, or installation instructions. Do not assume those specifications unless they match the original cable or are confirmed with the seller.

\### Product information

\- \*\*Brand:\*\* Horizon Fitness  
\- \*\*Product name:\*\* Elite 3.1T TM135-1US Treadmill Wire Harness Cable  
\- \*\*Product type:\*\* Treadmill wire harness cable / data cable  
\- \*\*Part number and SKU:\*\* DC509  
\- \*\*Barcode:\*\* DC509  
\- \*\*Condition:\*\* Preowned  
\- \*\*Compatible equipment listed:\*\* Horizon Fitness Elite 3.1T treadmill  
\- \*\*Model:\*\* TM135-1US  
\- \*\*Associated serial number:\*\* TM135-B05040057

## Compatibility and Applications

The DC509 wire harness cable is listed for the \*\*Horizon Fitness Elite 3.1T TM135-1US treadmill\*\*. It is a replacement part for this specific treadmill model and is intended to replace the corresponding original wire harness cable.

Use this cable when your treadmill requires the same DC509 harness and the original component matches the listing. Because treadmill wiring can vary by model and production version, check the model information, part number, connector arrangement, and cable appearance before ordering. The serial number shown in the listing is \*\*TM135-B05040057\*\*; compare it with your equipment records when applicable.

This part is not identified as a universal treadmill cable. Compatibility with other Horizon Fitness treadmills or other brands is not confirmed by the available product information.

## Before You Buy

Confirm that your treadmill is a Horizon Fitness Elite 3.1T with model number TM135-1US. Compare the existing wire harness with the product photos and verify that the DC509 part number matches your required replacement. Contact the seller if you need confirmation about connectors, fit, condition, or installation.

The listing does not state whether tools, additional wiring, manuals, or other components are included. The product should therefore be treated as the DC509 wire harness cable only unless the seller confirms otherwise.

## Details

- **Price:** 39.99 USD
- **Vendor:** Horizon Fitness
- **Type:** Data Cables
- **Tags:** All

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 39.99 USD | In stock |

## Images

- DC509
- DC509
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- DC509

## Additional Information

- **Condition:** PREOWNED

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> Source: [Cardio Equipment Parts](https://www.cardioequipmentparts.com/products/horizon-fitness-elite-3-1t-tm135-1us-treadmill-wire-harness-cable-dc509)
> Updated: 2026-08-29