Lang Tools TU-15-17 Diesel Compression Adapter (M24 x 1.50 Injector) For use with Lang TU-15 Diesel Compression Tester Applications: Cummins (1984-1998) B Series 2.9L, 3.9L, 5.9L, 4.5L Applications: Dodge/Cummins (1989-1998) 5.9L Applications: J.I. Case 2.9L, 3.9L, 5.9L