Black Silicone Coolant Bypass Cap, 1 1/8 inch ID 20721 It is designed specifically for

It is designed specifically for connecting a 4" (102mm) OD metal intake pipe to a 3 1/2" (89mm) OD pipe

Use with our Aluminum Splicing Nipples (HJ45 and HJ38) and Lined Hose Clamps (Part No

38 3 1/4" 83mm 3

This kit fits the fender-mounted reservoir tank on 2011-16 Ford F-150 with 5

Black Silicone Coolant Bypass Cap, 1 1/8 inch ID 20721 It is designed specifically forThis 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 28mm (1 1 8") ID, 36mm (1 7 16") OD and measures 38mm (1 1 2") Long overall with a 30mm depth. Maximum temperature 392 F (200 C). Operating pressure rating 28 psi. Black silicone rubber only. Sold