6BTA5.9 Cummins Cooler Core 3975818 Parts Catalog Ref No. Part Name Part No. Required 10 Cooler Core 3975818 1 11 Filter Head Gasket 2831077 1 12 Oil Cooler Core Gasket 2830559 1 13 Studded Flange Cap Screw 4899717 2 Above is the introduction of the Cummins Cooler Core 3975818, while if you need Cooler Core 3975818, complete Cummins engine …