Frame Hole Cover Caps For Kawasaki Ninja 400 / Ninja 500 / Z400 - 2018 to 2026

Frame Hole Cover Caps For Kawasaki Ninja 400 / Ninja 500 / Z400 - 2018 to 2026

These frame hole cover caps are designed to plug the unused access holes found in the frame of the Kawasaki Ninja 400, Ninja 500, Z400, and Z500. Left open from the factory, those holes collect road grime and moisture, and give the frame an unfinished look. The caps press directly into the openings with no tools required, restoring a clean, uniform appearance along the frame rails.

The caps are finished in black to blend with the OEM frame and are visible in the lower frame area, as shown in the product photo. Install takes only seconds per cap.

Why it makes a difference

Frame hole cover caps keep road debris and moisture out of the open cavities in the chassis. On everyday rides, exposed frame holes act as collection points for dirt and water that can be difficult to clean — sealing them simplifies maintenance and keeps the frame looking tidy.

The press-fit design means no drilling, no adhesive, and no permanent modification to your Ninja 400, Ninja 500, Z400, or Z500. The caps seat firmly into the existing openings and can be removed just as easily if access is needed later.

With a black finish that closely matches the factory frame color, the frame hole cover caps deliver a factory-finished look without any visible hardware. It is a straightforward upgrade that most riders will notice only in its absence.

Installation

Bolt-on fitment. No drilling, no cutting and no permanent modification to your motorcycle. Clean the frame hole opening and surrounding area with a dry cloth to remove any dirt or oil. Align the cap with the frame hole, ribbed side inward. Press the cap firmly into the hole until it seats flush with the frame surface. Repeat for each remaining hole.

Available in Black.

Fitment

This part is listed for Kawasaki Ninja 400 (2018–2026), Kawasaki Ninja 500 (2018–2026), Kawasaki Z400 (2018–2026) and Kawasaki Z500 (2018–2026). Check your model year and trim against the list above before ordering.

Questions riders ask

How many caps are included in the set?

The exact quantity per set is not specified in the listing — please check with us before ordering if you need to cover a specific number of holes.

Do these caps require any tools or adhesive to install?

No tools or adhesive are needed. The caps press directly into the existing frame openings and hold securely by friction.

All orders ship free, and every set of frame hole cover caps is backed by a 1-year warranty.