MMX Performance G-Series Washer Fluid Filler Cap | Billet
Hurry up! Only 7 item(s) items left in stock
Couldn't load pickup availability
Description
The MMX Performance BMW G-Series Washer Fluid Filler Cap replaces the cheap factory plastic washer cap with a precision-machined billet aluminium upgrade. It's all about the detail. Where the OEM cap sits as a flat plastic afterthought against an otherwise impressive G-Chassis engine bay, the MMX cap turns the washer reservoir into a finished feature.
Each cap is CNC 5-axis machined from a solid block of 6061-T6 aerospace-grade aluminium, hand-polished, then anodised in MMX signature gloss black. Unlike stick-on covers, it's a complete replacement, the OEM plastic cap is removed and the MMX cap takes its place, threading directly to the reservoir. Each unit is precision-sealed for a perfect, leak-free fit.
The cap joins MMX's existing range of billet under-bonnet dress-up parts (oil filler cap, coolant cap, A/C caps), letting you build a coordinated, fully finished engine bay one piece at a time. UK-engineered, motorsport-quality machining, for one of the easiest visual upgrades you can make to a G-chassis BMW.
Product Details
- CNC 5-axis machined from 6061-T6 aerospace-grade aluminium
- Gloss black anodised finish (MMX signature colour)
- Hand-polished before anodising
- Full OE cap replacement: not a stick-on cover
- Pre-sealed for a precise, leak-free fit
- SKU: MMR03-0002
Vehicle Applications
Notes
- Includes a 1-year manufacturer warranty against defects in materials and workmanship
- Designed and tested in the United Kingdom
Related Products
Fitment
Return Policies
Shipping Policy
Pairs well with
Collection list
Have a question?.
Help center
If you have any questions about your order, returns, or products, our team is here to help. Contact us directly and we’ll get back to you as soon as possible

