Skip to content
Variant Info

Description

MMX BMW | MINI Coolant Cap – 90MM

Upgrade your engine bay with the MMX BMW | MINI Coolant Cap (90MM) — a precision-engineered replacement designed to combine OEM reliability with premium aesthetics.

Each MMX coolant cap starts life as a solid billet of 6061 aerospace-grade aluminium, meticulously CNC-machined using advanced 5-axis technology. After machining, the cap is polished and finished in a deep gloss black anodised coating to ensure long-lasting durability and a refined under-bonnet appearance.

Designed as a true plug-and-play upgrade, every cap arrives pre-sealed and pre-installed with an OE-spec valve and internal spring. There is no need to transfer components from your original cap, making installation quick, clean, and secure.

The carefully considered grip design provides excellent finger purchase, removing any doubt about whether the cap has been tightened correctly while also making coolant refills easier.

Key Features

  • CNC-machined from 6061 aerospace-grade aluminium
  • High-quality gloss black anodised finish
  • Pre-installed OE-spec valve and internal spring
  • Direct OEM replacement – no modifications required
  • Improved grip design for easy installation and removal
  • Enhances under-bonnet appearance instantly

Vehicle Fitment

Compatible with BMW and MINI vehicles using the OE coolant cap part number:

OE Part Number: 17 11 7 639 021

While every effort has been made to ensure the accuracy of vehicle information, customers are solely responsible for confirming fitment for their specific vehicle, engine, and model variant prior to purchase.

Performance HQ
<strong>Klarna Payment</strong>

Klarna Payment

Experience the freedom of flexible payments with Klarna. Split your purchase into 3 interest-free installments, pay in 30 days, or choose our financing options for larger purchases. No hidden fees, instant approval, and complete purchase protection. Klarna makes shopping smoother with the ability to try before you buy - perfect for online shopping. Track all your deliveries and manage payments easily through the Klarna app.

<strong>Clearpay Payment</strong>

Clearpay Payment

Make your purchase more affordable with Clearpay's interest-free installment plan. Pay for your order in 4 equal payments, taken every 2 weeks. The first payment is made at checkout, with no interest or hidden fees when you pay on time. Instant approval decision with no impact on your credit score for on-time payments. Perfect for budgeting your shopping while getting what you need today.

SELECT YOUR VEHICLE

Show Universal
Parts By Vehicle
Wheels By Size