MMX Billet Washer Fluid Cap for BMW M2 (G87)/M3 (G80)/M4 (G82)
Ships from the brand or distributor, usually in 3–7 business days
Make sure this fits your car
Fits: BMW S58: M3 (G80/G81), M4 (G82/G83), M2 (G87). Confirm your exact car with us before ordering.
- Shipping at real carrier rates
- 30-day returns on unused parts
- Fitment help before you buy
A small under-hood upgrade for the G8x M cars: this billet cap takes the place of the plastic factory washer fluid cap. It is a complete replacement, not a cover that sticks over the stock part, and it seals properly so it won't leak.
What you get
- 5-axis CNC-machined billet cap, hand polished afterward.
- Gloss black anodized finish for durability.
- Sealed design for a leak-free fit.
- Full replacement for the factory plastic cap.
Brand: MMX · Part #: MMR03-0002
BMW S58: M3 (G80/G81), M4 (G82/G83), M2 (G87). Confirm your exact car with us before ordering.
| Model | Chassis | Years | Engine | Fits |
|---|---|---|---|---|
| M3 | G80/G81 | 2021+ | S58 (BMW M) | |
| M4 | G82/G83 | 2021+ | S58 (BMW M) | |
| M2 | G87 | 2023+ | S58 (BMW M) | |
| X3 M | F97 | 2020–2024 | S58 (BMW M) | |
| X4 M | F98 | 2020–2025 | S58 (BMW M) |
Not sure? Email sales@b58racing.com with your VIN.
- Ships from the brand or distributor, usually in 3–7 business days.
- Shipping is charged at the carrier's rate, shown at checkout. Orders over 70 lb ship by freight for a flat $99.
- Unused parts can be returned within 30 days. Some items are marked no-refund in their description.
Full details are on our shipping and returns page.
Guides for this part
S58 Common Problems (G80 M3, G82 M4, G87 M2, X3 M and X4 M) and the Parts That Fix Them
The S58 is still a young engine, and its public problem record is short. The most serious items we found are two BMW delivery stops on small groups of early engines: a 2019 X3 M and X4 M build window where BMW replaced t
BMW S58 Mods Guide: M2, M3, M4, X3 M and X4 M Upgrades in Order
On an S58, start with a tune and cooling. These cars make a lot of power stock, and heat is what holds them back on hot days and back-to-back pulls. Next come downpipes and a tune built for them, then fuel: an ethanol an
Pairs well with
Eventuri Black Carbon Engine Cover - BMW M2 / M3 / M4 (S58)
Kelford Cams Camshaft Set - S58
MMX Billet Oil Filter Housing Cap - BMW S58
