Upgrade your Fiesta ST, Puma ST, or Focus ST engine bay with the ZERONINE DESIGN Billet Aluminium Oil Filler Cap.

Packed with ZERONINE DESIGN touches as you might expect, from the knurled body, to the intricate top section… but there’s much more to this cap than meets the eye.

Designed and manufactured in the UK from CNC-machined aerospace-grade billet aluminium, this meticulously crafted cap features an innovative two-piece construction with a temperature stable key-operated opening and closing system, adding a new layer of functionality and convenience... it even doubles as a keyring!

Key Features:

• Two-Piece Keyway design: The two-piece design separates the key from the oil cap itself, enabling easy opening and closing, regardless of the caps temperature.

• Enhanced Accessibility: Designed specifically to address clearance issues, the raised keyway offers unobstructed access, bypassing possible interference from the OEM engine cover.

• Thermal Isolation for Safety: The Acetal construction of the keyway section serves as an effective thermal barrier, minimising heat transfer from the filler cap and protecting your hand when working on a warm engine.

• Anodised Black Finish: Anodised in a sleek, deep black for maximum corrosion resistance and long-lasting visual appeal, making it a standout feature in any engine bay.

• Diamond Knurled Contact Area: For added grip and tactile feedback, the surface contact zone also features a precision diamond knurl, enhancing usability even with oily or gloved hands.

• Laser-Etched Branding: Proudly showcasing the ZERONINE DESIGN logo in crisp, laser-etched detail, the cap reflects the same attention to quality and design that goes into every component we make.

• Supplied complete: with Oil filler cap, acetal key tool, key chain and sealing O-ring

Combining practical innovation with premium craftsmanship, the ZERONINE DESIGN oil filler cap offers an elegant, aesthetic engine bay boost for those that love a good looking engine bay... and let's face it, who doesn't?!