Features and Benefits:•Designed for the L5P Diesel Engine with two tank caps•One cap is located on the side of the tank (Vented) with right-hand threads•The other is located on the top of the tank (Non-Vented) with left-hand threads•This is designed to eliminate any chance of installing the non-vented cap where a vented cap is required•ATTENTION (Adapter is designed for the vented tank with right handed threads)•O-rings on the center core seal off the tank vent port for proper testing•Compare to GM factory tool GE-52098-A•Applications:•2017+ Chevrolet Silverado•2017+ GMC Sierra w/ DuramaxMongoose-Plusoffers industry-leading J2534 pass-thru technology enabling diagnostics, reprogramming and security functions for dealerships and the independent repair facility. This line of economical and compact pass-thru devices provides an easy-to-use interface that allows you to repair complex vehicles with OE applications in your shop.Mongoose-Plusis engineered to work with each OEM's J2534 applications for Chrysler, Ford, GM, Nissan, Toyota, & VW/Audi.