Black Silicone Coolant Bypass Cap, 1 3/8 inch ID COOLELB90 but the clip-retained hose often

but the clip-retained hose often leaks where it meets the reservoir

This 3" (76mm) ID hose combines the tough flexibility and good looks of our black silicone coolant hoses with a fuel-and oil-resistant fluorocarbon rubber (FKM) inner liner

5mm wall thickness (87mm / 3 7/16" OD)

Charge Air Cooler (CAC) hose is specifically designed to handle the higher temperatures and pressures in high-performance turbo and supercharged applications

Black Silicone Coolant Bypass Cap, 1 3/8 inch ID COOLELB90 but the clip-retained hose oftenThis cap features the same water and coolant compatible silicone rubber formulation as our silicone coolant hoses. It is designed for capping off coolant bypass or vacuum fittings, but it can also be used to protect fittings in storage. This size has a 35mm (1 3 8") ID, 43mm (1 11 16") OD and measures 38mm (1 1 2") Long overall with a 30mm depth. Maximum temperature 392 F (200 C). Operating pressure rating 14 psi. Black silicone rubber only. Sold