Cummins ISB 6.7, Engine Misc Parts, (GOOD USED) Cummins ISB 6.7 Diesel Engine Oil Filter Base Cooling Cover 3970201 For Sale, Pulled Off a Cummins ISB 6.7L Diesel Engine, Part # 3970201, Filter Head Gasket, Oil Cooler Housing Part # 3970201, Other Part # 3965152, 3955034, Stock# 6466 | Tested & Inspected!