Cummins 4B3.9 Upper Gasket Kit 4089648 Parts Catalogue Ref No. Part Name Part No. Required 1 Upper Engine Gasket Kit 4089648 1 2 Cylinder Head Gasket 3283333 1 3 Turbocharger Gasket 3901356 1 4 Exhaust Outlet Connection Gasket 3912220 1 5 Exhaust Manifold Gasket 3927154 1 6 Intake Manifold Cover Gasket 3938153 1 Above is the introduction of the …