MMX Billet Washer bottle Cap – BMW M4

It’s all about the detail. Replace that cheap plastic washer cap with the stunning MMX billet washer fluid cap finished in anodised gloss black. The perfect addition to an already comprehensive range of under-bonnet dress up parts.The MMX Performance billet washer bottle cap for F-Series BMWs has been designed from the ground up in the UK, constructed from a solid billet of aluminium.

Our replacement washer bottle cap is beautifully over-engineered to give an exquisite feel and exceptional product experience compared to OE. A beautiful complete replacement for your factory plastic cap to really smarten up the under-bonnet visuals.The MMX washer fluid cap arrives pre-sealed for a precise and leak-free connection. Each cap was designed to directly replace the OE cap, not merely a cover stuck in place.

It’s meticulously machined from this billet with the latest CNC 5-axis technology, before being polished, then gloss-anodised to stay beautiful year after year.