RK Autowerks S63TU4 Billet Coolant Reservoir

Description8S63TU4 Billet Coolant ReservoirBillet 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:6061 billet CNC constructionOEM factory cap retainedOEM connections utilized like stockOEM sensor utilized for level readingO-ring housing for OEM O-Ring off Stock ReservoirInternal baffling to dampen fluid transfer throughout the reservoirPricingMSRP $1250Models Supported– 2018 | M5 | F90 – 2019 | M8 Coupe, Convertible, & Gran Coupe | F91, F92, F93Part number: 17137889450 replacementNotesThe 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.