Part Number: 123990-6 (Insulator) Part Number: 123990-7 (Insulator) Part Number: 123990-8 (Insulator) Part Number: 12399080 (Plate) Part Number: 1239909 (Housing) Part Number: 12399-1 (Switch, pressure) Part Number: 123991-01 (Plate assybonded) Part Number: 1239911-1 (Component) Part Number: 1239911-2 (Component) Part Number: 123992 (4 dia. check valve) Part Number: 123992-01 (Body) Part Number: 123992-1 (Valve) Part Number: 12-39921-01 (Component) Part Number: 12-39921-02 (Ne)