## Xterra Fitness TR6.6 Treadmill Right Speaker With Cover & Wire Harness
The **Xterra Fitness TR6.6 Treadmill Right Speaker With Cover & Wire Harness (MX391)** is a preowned replacement speaker assembly for the right side of an Xterra Fitness TR6.6 treadmill. It includes the right speaker, its protective cover, and the attached wire harness. This replacement part may suit a treadmill owner or repair technician who needs to replace a missing, damaged, or nonworking right-side speaker assembly.
Product Details and Benefits
This Xterra Fitness treadmill speaker assembly provides the complete right-side speaker component listed for the TR6.6 model. The included cover helps complete the speaker housing, while the wire harness supports connection to the treadmill’s existing audio system. Buying the speaker together with its cover and harness can be more practical than searching for each component separately.
The assembly is sold as a **preowned part**, so it may show signs of previous use. Its condition should be considered before ordering, especially if you are replacing a damaged part or restoring a treadmill that has been stored for an extended period. The listing identifies this item as the **right speaker**, not the left speaker, so side-specific placement matters when checking compatibility.
The product information does not provide dimensions, construction materials, color details, audio specifications, or installation instructions. Buyers should use the listed model and part numbers to confirm that the assembly matches the component already installed on their treadmill.
Compatibility and Applications
This part is identified for the **Xterra Fitness TR6.6 treadmill**. It is designed as a replacement for the treadmill’s **right-side speaker assembly** and includes the speaker cover and wire harness.
The product details are:
- **Brand:** Xterra Fitness
- **Compatible equipment:** Xterra Fitness TR6.6 treadmill
- **Product type:** Right treadmill speaker assembly
- **Included components:** Right speaker, cover, and wire harness
- **Part number:** P020369-A1
- **SKU:** MX391
- **Barcode:** MX391
- **Condition:** Preowned
Use this part when the original right speaker assembly is missing, damaged, or needs replacement. It may also help when repairing a used TR6.6 treadmill that lacks the original speaker cover or harness.
### Why Choose This Replacement Part
The MX391 assembly groups three related components into one listed replacement: the right speaker, protective cover, and wire harness. This can help simplify part identification when the original assembly requires replacement. The clearly stated Xterra Fitness TR6.6 compatibility and part number also make it easier to compare the listing with your treadmill’s existing component.
Before You Buy
Confirm that your treadmill is an **Xterra Fitness TR6.6** and that you need the **right-side** speaker. Compare the original part with the listing details, including part number **P020369-A1** and SKU **MX391**. Check that your existing treadmill uses the same speaker, cover, and wire-harness arrangement.
This product is preowned. The listing does not provide warranty information, dimensions, or installation instructions. Verify compatibility and condition carefully before ordering, particularly if your treadmill model or speaker assembly differs from the information above.
