# Horizon Fitness 5.1T TM137-1US Treadmill Wire Harness Cable (DC322)

## Product Introduction

The Horizon Fitness 5.1T TM137-1US Treadmill Wire Harness Cable is a replacement data cable for the Horizon Fitness 5.1T treadmill. It carries the DC322 part number and is listed for treadmill equipment identified by model TM137-1US. This cable may be needed when the original wire harness becomes damaged, worn, or requires replacement during treadmill service or repair.

A wire harness cable helps connect the relevant electronic components within the treadmill. Using the correct harness supports proper component connections and helps keep the equipment’s internal wiring matched to its original configuration. Because treadmill wiring can vary by model and production series, buyers should confirm the model and part details before ordering.

## Product Details and Benefits

This product is a treadmill wire harness cable in the data cable category. It is supplied under the Horizon Fitness brand and identified by the following product information:

\- \*\*Brand:\*\* Horizon Fitness  
\- \*\*Product:\*\* 5.1T TM137-1US Treadmill Wire Harness Cable  
\- \*\*Part number:\*\* DC322  
\- \*\*SKU:\*\* DC322  
\- \*\*Barcode:\*\* DC322  
\- \*\*Equipment type:\*\* Treadmill  
\- \*\*Listed model:\*\* TM137-1US  
\- \*\*Serial number information:\*\* TM137-B04120451

The cable provides a matching replacement option for the wire harness used in the listed Horizon Fitness treadmill configuration. Replacing a damaged or unsuitable harness with the correct part can help restore the intended internal cable connection and support repair work without modifying the treadmill’s wiring.

This item is useful for treadmill owners, repair technicians, service departments, and equipment resellers who need a specific Horizon Fitness harness cable. It can also help when servicing a treadmill that requires the DC322 part number rather than a general-purpose cable.

## Compatibility and Applications

The Horizon Fitness 5.1T TM137-1US Treadmill Wire Harness Cable is listed for the \*\*Horizon Fitness 5.1T treadmill, model TM137-1US\*\*. The associated serial number information shown for this product is \*\*TM137-B04120451\*\*.

This is a model-specific treadmill cable, not a universal data cable. Its intended application is service or replacement work on the compatible Horizon Fitness treadmill. The product page does not provide connector details, cable length, wire count, material, color, or installation instructions, so those specifications should not be assumed.

## Why Choose This Product

Choosing a cable with the correct Horizon Fitness model reference and DC322 part number makes it easier to match the replacement to the treadmill being serviced. A model-specific wire harness can reduce the risk of ordering an unrelated cable and helps maintain the original wiring arrangement during repair.

## Before You Buy

Verify the following information against your treadmill and existing part:

\- Horizon Fitness 5.1T treadmill  
\- Model number: \*\*5.1T TM137-1US\*\*  
\- Applicable serial number information: \*\*TM137-B04120451\*\*  
\- Replacement part number or SKU: \*\*DC322\*\*

Compare the original cable and part markings before ordering. If your treadmill uses a different model, serial range, or harness number, confirm compatibility with a qualified treadmill technician or the seller. The listed product information does not include dimensions, connector specifications, package quantity, installation directions, warranty details, or material information.

## 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

- DC322
- DC322
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- DC322

## Additional Information

- **Condition:** PREOWNED

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> Source: [Cardio Equipment Parts](https://www.cardioequipmentparts.com/products/horizon-fitness-5-1t-tm137-1us-treadmill-wire-harness-cable-dc322)
> Updated: 2026-08-29