Billet 6061-T6511 aluminum replacement for the factory plastic turbo coolant/water hose fitting (BMW OE 11537585023) fitted to N55B30 3.0L turbocharged engines. The original plastic fitting is prone to cracking and coolant leaks over time; this CNC-machined aluminum unit is a direct bolt-in replacement that solves the failure without further modification, and includes an EPDM O-ring and stainless steel hose clamp for installation.
Fitment: BMW models powered by the N55B30 engine, including X5 (E70/F15) and X6 (E71/F16) xDrive35i variants, along with other N55-equipped 3, 5 and 1 Series models that share the same coolant fitting.