Used to provide access for testing mechanical oil pressure with a pressure gauge on 4.2L, 4.8L, 5.3L, 5.7L and 6.0L gasoline engines. Models: GM Commodore GEN 3 Only Lease Time: 5 Days OEM: J-42907 (J42907) Engines: 4.2, 4.8, 5.3, 5.7 & 6.0L V8 GM Engines Type: Petrol