Upgrade your engine bay with the ZERONINE DESIGN Billet Coolant Cap.

Compatible with a wide range of Ford models including: Mk7/8 Fiesta ST, Puma ST, Mk3/4 Focus ST, Mk3 Focus RS and Ranger, the billet coolant cap is 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, with an optional temperature stable key-operated opening and closing system, adding a new layer of functionality and convenience...

Key Features:

• 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.

• Thermal Isolation for Safety: The Acetal construction of the optional 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. Note: Key available separately (does not limit operation) and is identical to the one supplied with our existing billet oil filler cap FEN065AA

Combining practical innovation with premium craftsmanship, the ZERONINE DESIGN coolant cap offers an elegant, aesthetic engine bay boost and matches our ever-expanding range of engine bay dress-up, for those that love a good looking engine bay... and let's face it, who doesn't?!

Perfectly matched to our Fiesta Mk6 ST | Fiesta Mk7 ST | Focus RS/ST Mk3 and Fiesta ST Mk8/8.5 | Puma ST | Focus ST Mk4/4.5 | Kuga 1.5 Billet Engine Oil Filler Caps and Brake Fluid Cap.