# Nautilus T618 Treadmill Right Plastic End Cap (EC278)

\## Nautilus T618 Treadmill Right Plastic End Cap

The Nautilus T618 Treadmill Right Plastic End Cap is a replacement plastic part for the right side of a Nautilus T618 treadmill. It helps restore the treadmill’s original end-cap fit and appearance when the existing right-side cap is missing, cracked, damaged, or no longer suitable for use. This part is identified by part number and SKU \*\*EC278\*\*, making it easier to compare with the component currently installed on your machine.

## Product Details and Benefits

This product is a \*\*right plastic end cap\*\* made for the Nautilus T618 treadmill. Its position-specific design matters because the right-side component may differ from the left-side part. Replacing only the damaged end cap can help you address a specific exterior part without replacing a larger treadmill assembly.

The part is listed as a plastic component and carries the following product identification details:

\- \*\*Product:\*\* Nautilus T618 Treadmill Right Plastic End Cap  
\- \*\*Brand:\*\* Nautilus  
\- \*\*Equipment type:\*\* Treadmill  
\- \*\*Compatible model:\*\* Nautilus T618  
\- \*\*Part number:\*\* EC278  
\- \*\*SKU:\*\* EC278  
\- \*\*Category:\*\* Plastic Parts  
\- \*\*Position:\*\* Right side  
\- \*\*Barcode:\*\* EC278

The Nautilus T618 right plastic end cap may suit a repair project involving a worn or damaged original cap. It can help complete the exterior of the treadmill and maintain the intended fit of the right-side plastic trim. Because this is a model- and side-specific part, matching the replacement carefully before ordering is important.

## Compatibility and Applications

This replacement end cap is listed for the \*\*Nautilus T618 treadmill\*\*. It is intended for the \*\*right side\*\* of that model and replaces the corresponding right plastic end cap. It is not identified as a universal treadmill part, so do not assume that it will fit other Nautilus treadmill models or equipment from other brands.

Use this part when you need a replacement for the right plastic end cap on a Nautilus T618 treadmill. It may be useful for treadmill owners, service technicians, fitness equipment repair businesses, and anyone restoring a Nautilus T618 machine with a damaged or missing exterior plastic component.

## Why Choose This Product

Choosing a part with the correct model, position, and part number helps reduce the risk of ordering an unsuitable replacement. The EC278 identification provides a clear reference when comparing the old component, checking service records, or confirming the part against your treadmill.

A model-specific replacement can also make a targeted repair more practical than replacing an entire treadmill section. This listing focuses on the right plastic end cap only, so you can order the component needed for the repair rather than a larger assembly.

## Before You Buy

Confirm that your treadmill is a \*\*Nautilus T618\*\* and that you need the \*\*right-side\*\* plastic end cap. Compare the existing part with the product identification shown above and verify the part number \*\*EC278\*\* before ordering. The available product information does not list dimensions, color, installation instructions, package quantity, warranty details, or additional model compatibility. These details should be confirmed if they are important to your repair.

## Details

- **Price:** 39.99 USD
- **Vendor:** Nautilus
- **Type:** Plastic Parts
- **Tags:** All

## Variants

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

## Images

- EC278
- EC278
- EC278
- EC278
- EC278
- EC278

## Additional Information

- **Condition:** PREOWNED

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> Source: [Cardio Equipment Parts](https://www.cardioequipmentparts.com/products/nautilus-t618-treadmill-right-plastic-end-cap-ec278)
> Updated: 2026-08-28