For Paccar PX-6, PX-8, 1989 & For Newer Cummins 4BT 3.9L, ISC 8.3L, B Series 5.9L, ISB, ISL 5.9L 6.7L, QSB 5.9L 6.7L and ISL9 L9 9.0L. Works on seal number 5259499 and 3926126. Made from high standard carbon steel which can withstand corrosion, rust and impact, its heavy duty construction ensures an unparalleled long lifespan.
