S63TU4 Billet Coolant Reservoir, BMW – F90 M5 & F91/F92/F93 M8

Billet reservoir designed and machined in house to remedy the failing stock plastic reservoir. Our all metal construction reservoir ensures leaks are not an issue anymore. Constructed of 6061 billet aluminum, you know you have a lifetime product and don’t need to worry about leaks anymore. Utilizing the stock cap also retains the pressure bleed off like designed by the OEM. All of the OEM connecting points are utilized and the quick connect fittings slip right on. This is a plug and play solution which even utilizes the stock sensor ensuring there won’t be any issues with level readings.

Why?

The OEM plastic reservoir is known to leak causing damage of the injectors and coils. This leads to vehicle downtime and potential engine damage. Simply replacing the OEM reservoir with another one is an unknown with how long it may last.

Features:

1. 6061 billet CNC construction
2. OEM factory cap retained
3. OEM connections utilized like stock
4. OEM sensor utilized for level reading
5. O-ring housing for OEM O-Ring off Stock Reservoir
6. Internal baffling to dampen fluid transfer throughout the reservoir

Pricing

• MSRP $1250

Models Supported

• 5′ F90 M5 LCI   (07/2019 — 06/2023)
• 5′ F90 M5   (01/2016 — 06/2020)
• 8′ F91 M8 Convertible   (11/2017 — 02/2025)
• 8′ F92 M8 Coupé   (11/2017 — 02/2025)
• 8′ F93 M8 Gran Coupe   (10/2018 — 02/2025)

Part number: 17137889450 replacement

Please verify your vehicle uses the part number above. To confirm you can go to the website below, insert the last 7 digits of your vin, go to “Radiator” and see if our part number is there. You can also copy and paste the part number once you’ve input your vin. 

https://www.realoem.com/bmw/enUS/select

Notes

• The customer will have to re-use the stock coolant sensor probe and the OEM gas cap (Please note that the arrows do not have to align, screw it on until it is tight and it will be okay) , which pulls out of the OEM reservoir. In certain cases, it does not slide out smoothly and you may need to trim around the sensor to remove it. We do include the O-ring for that sensor in the package as well.
• We are not responsible for customers who purchase this unit and it does not fit due to not cross referencing part numbers.