Great Compatibility These Test Adapters are used for 1998-1/2 to Current 24V Cummins 5.9 6.7 Liter Diesel. High Tensile Steel Structure These Adapters are made from premium steel, rugged and high temperature resistant. Designed using state-of-the-art technology with the client in mind. It will meet your needs and provide excellent quality at an affordable cost. Applicable Model .