Original BMW Inner Quarter Panel Grommet for Short Rod Aerial, BMW Z3 Roadster and M Roadster (1996–1999)

Water finding its way into the rear quarter of a Z3 often traces back to this Original BMW interior grommet, which seals the short rod antenna to the body from inside the quarter panel on the BMW Z3 Roadster and M Roadster. BMW names it the grommet for the short rod aerial, interior, and production of the part began in September 1995. It weighs 36 g and is sold individually. A rubber grommet like this closes the gap where the antenna passes through sheet metal, keeping water and road noise out of the body cavity.

Original BMW Parts carry a 24-month parts warranty.

This piece sits on the inside face of the quarter panel at the antenna. If you are chasing a leak into that corner of the car, this grommet is a likely culprit, and it is an inexpensive part to rule out. BMW uses one grommet design across the Z3 engine range, from the four-cylinder M43 and M44 cars to the six-cylinder M52 and the S50 and S52 powered M Roadster, so engine choice does not change the part.

Technical Details

• Manufacturer: BMW (Genuine BMW)
• Part number: 65-21-8-389-555
• BMW name: Grommet, short rod aerial, interior
• Position: inside the quarter panel at the antenna
• Weight: 36 g (1.27 oz)
• Production start: September 1995
• Sold individually
• Warranty: 24 months on Original BMW Parts

Common Questions

Could this grommet explain water inside my Z3 quarter panel?
Yes. It seals the antenna to the body from inside the quarter panel, so a failed grommet can let water into that area.

Is it the same on the M Roadster?
Yes. The same grommet covers the Z3 M Roadster with the S50 and S52 engines as well as the standard Roadster.

Fitment & Compatibility

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