Star Trac 9-3573-MUSAP3 Treadmill Belt Tensioner Arm With Spring (MX293)

## Star Trac 9-3573-MUSAP3 Treadmill Belt Tensioner Arm With Spring

The Star Trac 9-3573-MUSAP3 Treadmill Belt Tensioner Arm With Spring is a replacement treadmill belt tensioner assembly for compatible Star Trac equipment. This part helps support the treadmill belt tensioning system by combining the tensioner arm and spring in one assembly. If the original arm or spring is damaged, missing, or no longer suitable for service, this replacement part may help restore the correct belt tensioning function.

Product Details and Benefits

This Star Trac treadmill belt tensioner arm is identified by part number **9-3573-MUSAP3** and includes the matching spring shown in the product name. The arm and spring work together as part of the treadmill’s belt tensioning mechanism. Correct tension allows the running belt system to operate as designed and supports proper servicing of the machine.

Replacing the complete arm-with-spring assembly can make repairs more straightforward when the original component has wear or damage. It also helps avoid ordering the arm and spring as separate items when both parts require replacement. The product is intended for use as a service or repair component rather than as a standalone treadmill accessory.

**Product information:**

- **Brand:** Star Trac
- **Product type:** Treadmill belt tensioner arm with spring
- **Part number:** 9-3573-MUSAP3
- **SKU:** MX293
- **Barcode:** MX293
- **Product name:** Star Trac 9-3573-MUSAP3 Treadmill Belt Tensioner Arm With Spring
- **Included components:** Tensioner arm with spring, as identified in the product title
- **Equipment type:** Treadmill

Compatibility and Applications

This part is associated with **Star Trac treadmills** and is identified specifically by the Star Trac reference **9-3573-MUSAP3**. It is used in the treadmill belt tensioning system and is intended to replace the corresponding original tensioner arm and spring assembly.

Compatibility should be confirmed against the treadmill’s existing part, service documentation, or equipment records before ordering. The available product information does not list a complete range of compatible treadmill models, so buyers should not assume that the part fits every Star Trac treadmill. The listed serial number information is **TRSX1601-L01084** and may help with equipment identification where applicable.

### Why Choose This Replacement Part

The Star Trac 9-3573-MUSAP3 treadmill belt tensioner arm with spring provides a clearly identified replacement option for service technicians, fitness equipment repair businesses, and treadmill owners working on compatible Star Trac equipment. Its combined design includes both the arm and spring specified by the product listing, helping you match the replacement to the original assembly.

Before You Buy

Check the part number **9-3573-MUSAP3** carefully before purchase. Compare the existing tensioner arm, spring arrangement, and treadmill service information with the listing. Verify the Star Trac equipment identification and, where relevant, the serial number **TRSX1601-L01084**. Dimensions, material, installation instructions, warranty details, and additional model compatibility are not provided in the available product information.