This rubber cap from Dorman has a 3/4'' inner diameter (ID), making it suitable to cap-off 3/4" hose-barbs and other fittings that are no longer in use. This cap is supplied in Improved Racing's 2012-2015 Chevrolet Camaro factory oil cooler system deletion kit.
1 x HPL-1002 - 3/4" ID Coolant Barb Cap
2012-2015 V8 Camaro
This cap is a sub-component in the 2012-2015 Camaro factory oil cooler deletion kit (Part # HPL-1004-KIT). Capping only the radiator hose-barb alone will not delete the factory oil cooler and will leak coolant from the factory cooler.