MINI R & F Series Aluminum Fuel Cap

Refueling Becomes a Mechanical Moment

The factory plastic fuel cap does its job. It seals the tank and that's the end of it. This aluminum replacement does the same job — same sealing, same locking behavior, same OEM interface — but with a weight and feel the factory cap was never designed to have.

CNC machined from solid aluminum billet, anodized, hand-polished, and built as a full mechanical replacement rather than a cosmetic cover stuck over the existing cap.

Featured by @the.mini.bat ↗ and customer installations by Nunzio G. and Steffen W.

Not a Cover. A Replacement.

This is a complete mechanical replacement for the factory fuel cap — not an overlay, not an adhesive skin, not a cosmetic ring that sits around the existing cap.

It installs using the OEM mounting interface, retains the factory tethered mechanism so the cap stays attached during refueling, and functions exactly like the original in daily use.

CNC Machined from Solid Aluminum

5-axis CNC machined from solid aluminum billet. Precision tolerances for an OEM-level fit. Anodized for corrosion and wear resistance, then hand-polished for a surface finish that holds up to daily use without looking soft or generic.

The retro motorsport fuel lid profile references the mechanical fuel caps found on period racing and GT cars — a detail that reads as considered rather than decorative.

As Installed

Watch the Demo

Compatibility

MINI Cooper R & F Series
Gen 2: R55, R56, R57, R58, R59, R60 (2007–2013)
Gen 3: F54, F55, F56, F57, F60 (2014–2023)
Gen 4: F65, F66, F67
Compatible with Cooper, Cooper S, JCW, Clubman, Countryman, MINI One

BMW F & G Series
Fits most models including 128i, 135i, 228i, 320i, 323i, 325i, 328i, 330i, 335i, 428i GT, 525i, 528i, 530i, 535i, 645ci, 650i, 740i, 745i, 750i, M3, M4, M5, Z4, X1–X6.

BMW Compatibility: Leave a note at checkout or contact us after purchase to confirm fitment for your specific BMW model and year.

Installation

Direct mechanical replacement using the OEM mounting interface. No adhesives, no drilling, no permanent modification. Professional installation is recommended for a clean final fit.

Frequently Asked Questions

Is this a cover or a full replacement?
A full replacement. It mechanically replaces the factory plastic cap entirely — it is not a skin or overlay applied over the existing cap.

Does it retain the tethered mechanism?
Yes. The factory tether that keeps the cap attached during refueling is retained and functions as normal.

Does it seal correctly?
Yes. The OEM sealing interface is maintained. The cap seals and locks the same way as the factory unit.

Does it fit BMW as well as MINI?
Yes, for most BMW F and G Series models. Contact us to confirm fitment for your specific model before ordering.

Complete Your Exterior Details

Pairs well with the R & F Series Brass Bullet Door Lock Pin — another small mechanical detail upgrade for the same generations.

Developed for MINI Cooper and BMW Owners Who Notice the Small Things

The fuel cap is one of the last purely mechanical moments left in modern car ownership. This replacement was developed for owners who want that moment to feel considered — same function, same fit, different material entirely.

For owners searching for a MINI Cooper aluminum fuel cap, MINI R56 gas cap replacement, MINI F56 CNC fuel cap, BMW fuel cap upgrade, or motorsport-style fuel lid, this is the direct answer.