Cardone 2K-201 Diesel Installation Kit Installation kits available for all 2J or 2H part numbers as required, some do not require any additional installation hardware. Each installation kit includes everything required (gaskets, O-rings, sealing washers, etc.) to install the part as denoted in the application guide This kit makes the installation job easier and faster, as these components are typically sold separately from O.E. suppliers  not in one convenient kit.