Fitment: Injector adapter with quick disconnect for Cummins ISB 5.9L engines 1998-2002 used in Dodge pickups, school buses and medium duty trucks. For use with J-6692-B Compression Tester Features: 1) Compression Test Adapter is for use with the Diesel Compression Tester TU-15 to test cylinder pressure on diesel cars and trucks. Diesel compression test adapters make your tester gauge assembly more versatile and useful 2) All are made from quality materials to provide you with an accurate and lasting service life 3) Part Number - TU-15-26 .