MMR Performance Billet Aluminium Oil Filler Cap - Black Anodised CNC Alloy Engine Oil Cap | Rocker/Cam/Valve Cover Oil Filler Lid | Round-Style OEM+ Upgrade, Engine Bay Dress-Up

MMR Performance Billet Alloy Engine Oil Cap Upgrade

Transform your engine bay with a premium CNC-machined alloy oil cap from MMR Performance. This billet aluminium cam cover cap delivers a clean, purposeful look while offering improved grip for effortless removal and refitting. It is a simple, high-impact engine bay upgrade that complements detailing, tuning and show car presentation.

Crafted from 6061-T6 billet aluminium and finished in a tough anodised coating, this performance oil filler cover is available in a deep ebony black or dark anthracite grey to suit your build. Choose subtle OEM+ or a bold contrast for that motorsport-inspired style under the bonnet.

• CNC-machined from high quality 6061-T6 billet aluminium for a precise fit
• Anodised finish in ebony black or dark anthracite for durability and premium appearance
• Generous finger purchase for easy removal and mess-free top-ups
• Lightweight, corrosion resistant and ideal for engine bay styling
• Quick, straightforward install using your original factory seal
• Suitable for engines that use the round-style oil filler shown in the product photos

Why choose this alloy rocker cover cap

This is the perfect finishing touch for enthusiasts who want a refined, performance look without compromising function. It is a great match for engine dress-up parts, an effortless replacement for a tired plastic oil lid and a smart way to upgrade your under-bonnet presentation. Ideal for daily drivers, track toys and show builds.

Our experience

We fit these regularly at MJ Modifications and we are consistently impressed with the fit and finish. Customers love the premium feel and the tidy, OEM+ appearance it brings to the engine bay.

Fitment guidance

This billet oil cap suits vehicles that use the rounded oil filler design shown in the images. Please compare your existing filler to confirm compatibility.

Important: re-use your original oil filler cap seal. Ensure the seal is in good condition before installing.

Finish care note

Anodised aluminium can develop a natural change in appearance if exposed to high temperatures for extended periods. This is normal for anodised finishes.

Professional fitting

Prefer us to install it for you or want advice on compatibility and engine bay accessories? Book in with MJ Modifications in Warwickshire. Request a fitting quote at info@mjmodifications.co.uk.

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