Westin Plastic End Cap 3 inch (1 piece) - Black

Snap-On Black End Cap That Finishes the Tube End on Your Westin 3-Inch HDX Nerf Bars

The Westin 80-0134 is a single black plastic replacement end cap designed to fit the open tube ends on Westin 3-inch HDX Xtreme and HDX Platinum nerf step bars. Whether the original cap cracked, was lost, or needs replacing after a trail hit, 80-0134 snaps directly onto the tube end in seconds with no tools required. The UV-resistant black plastic matches the textured powder-coated finish of Westin HDX bars and protects the tube interior from dirt, moisture, and road debris. Sold as a single piece for targeted replacement on driver or passenger side.

Key Features

• Direct snap-on replacement for 3-inch Westin HDX Xtreme and HDX Platinum nerf bar tube ends
• UV-resistant black plastic resists fading, cracking, and impact from road debris
• Snug press-fit design requires no tools and installs in seconds
• Seals tube end against moisture, mud, and debris intrusion
• Matches factory black finish on Westin HDX series nerf bars
• Sold individually for single-side replacement without buying a pair
• Lightweight at 0.1 lbs, adds no measurable weight to the step bar

Specifications

Fitment

What's Included

• 1 x Westin 80-0134 Black Plastic End Cap (3-inch, single piece)

Frequently Asked Questions

The 80-0134 fits Westin HDX Xtreme and HDX Platinum nerf step bars with 3-inch diameter tubing. Always confirm your specific bar model uses 3-inch tube ends before ordering, as Westin also produces nerf bars with different tube diameters that require different end cap sizes.

The Westin 80-0134 is sold as a single piece. If you need to replace both the driver and passenger side end caps, you will need to order two units. This allows for targeted single-side replacement without requiring a full pair purchase.

Installation requires no tools. Align the cap with the open tube end on your Westin HDX nerf bar and press firmly until it snaps into place. For best fit, wipe the tube end clean of any dirt, rust, or debris before installing so the cap seats fully and evenly.

Yes. The 80-0134 is molded in black UV-resistant plastic that closely matches the textured black powder-coated finish on Westin HDX Xtreme and HDX Platinum nerf bars, maintaining a factory-consistent appearance at the tube end.

The 80-0134 is designed and sized for Westin HDX series 3-inch tube ends specifically. While it may physically fit some other brands with the same tube diameter, Westin only guarantees fitment on their own HDX Xtreme and HDX Platinum bars. Compatibility with third-party nerf bars is not confirmed.

Yes. The plastic material used in the 80-0134 is UV-resistant, which helps prevent fading, brittleness, and cracking from prolonged sun exposure. This is particularly important for a component on the exterior of a truck that sees full outdoor exposure year-round.

Yes. The snap-fit design of the 80-0134 creates a snug closure at the tube end that helps prevent moisture, mud, and road debris from entering the hollow tube interior of the nerf bar. Keeping tube ends capped also slows internal corrosion on bars used in wet or salty environments.

The 80-0134 is sized for Westin HDX Xtreme and HDX Platinum series bars. The HDX Drop nerf bars use the same 3-inch tube diameter, so the 80-0134 typically fits those as well. Verify by measuring the outer diameter of your specific HDX Drop bar tube end before ordering to confirm compatibility.

Installation Instructions

1. Identify the tube end on your Westin HDX nerf bar that requires a replacement cap.
2. Remove any remnants of the old cap by pulling or prying it out with a flathead screwdriver if needed.
3. Clean the tube end with a dry cloth to remove dirt, moisture, and any debris.
4. Align the Westin 80-0134 cap with the open tube end.
5. Press firmly and evenly until the cap snaps fully into place and sits flush with the tube end.
6. Tug lightly on the cap to confirm it is seated securely before returning the vehicle to use.

WARNING: This product can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and reproductive harm. For more information go to www.P65Warnings.ca.gov.