BMW 17128654834 Upper Radiator Coolant Hose

This upper radiator coolant hose manages coolant circulation between the radiator and engine block, maintaining optimal thermal regulation under demanding operating conditions. It is engineered to withstand high-pressure cycles and thermal stress without degradation. Constructed from high-grade EPDM rubber compound reinforced for durability, the hose ensures a secure, leak-proof connection at the radiator and engine interfaces. It is designed as a direct OEM replacement for BMW part number 17128654834 (17 12 8 654 834), guaranteeing exact fitment for vehicles equipped with the B46B20O1 and B46D 2.0L turbocharged inline-four engines.