Description
The Endcap, Bas Shroud, Side Rail, Right is a replacement treadmill part designed to finish and protect the right-side lower rail area on select Nautilus units. Made for the Nautilus T 618 Treadmill, this trim piece helps restore a clean factory appearance while covering the side rail shroud section.
- Fits select Nautilus T618 treadmills and is commonly identified as part SKU 8009254.
- Shown as #4 in parts diagrams for the T618 base/side rail assembly.
- Commonly listed for T618 model variants 100496 and 100606, with some listings also associating this style with nearby Nautilus residential platform assemblies.
- Ideal when replacing worn, cracked, or missing t 618 treadmill endcap bas shroud side rail components on the right side.
This nautilus endcap bas shroud side rail right piece is a molded exterior trim component that mounts along the lower side rail/base shroud area to help protect internal edges and improve the finished look of your machine. It is intended as a direct-fit replacement for compatible T618 assemblies and is a practical solution when refreshing older nautilus treadmill parts. Depending on your treadmill’s revision, confirm your model and serial information before ordering. Installation is typically straightforward for most DIY repairs and usually requires only basic hand tools and careful alignment with the existing shroud and rail hardware.
Restore your treadmill with an OEM-quality replacement that fits right, looks clean, and ships same day from our warehouse.
Shop the full range of Nautilus T618 treadmill parts at Krislynn.


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