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

ID: 76mm (3")

Remove the stock clip-retained hose from the reservoir and from the lower hose

00) to clamp the hose over a 4" OD tube

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