4089648 Upper Engine Gasket Kit for Cummins 4BT 3.9L 8-Valve Diesel – Replaces 3804896 3802016 3802361 – Complete Cylinder Head Set. Replaces Part Numbers: 3804896, 3802016, 3802361. Cummins 4BT 3.9L Upper Gasket Set 4089648 3804896 4B 4BTA Diesel.
