lower end gasket set for a Cummins 4BT3.9 Diesel Engine. This is an OEM Case Case/IH lower end gasket set PN# A77861 NSN # 5330-01-294-1824 These engines are used in many pieces of Case and other construction equipment. Used in Uniloader and Case Backhoes Save $$$ here on this item as these normally go for about $204 at the dealer High quality OEM parts includes everything except the head gasket to do a top end valve job. . L4B12 13030