Part Number: 139-637 (O-ring) Part Number: 139637-001 (N/a) Part Number: 139637-01 (Insulation board) Part Number: 1396-37-80RY (Bobn cat tht for e42/20 12 hor 4) Part Number: 139638-01 (Clamp assy) Part Number: 139638-23 (No description) Part Number: 1396389 (Switch assy) Part Number: 1396389REV1 (Switch assy) Part Number: 139639-001 (No description) Part Number: 139639-01 (Terminal board) Part Number: 13963903 (No description) Part Number: 13963904 (No description) Part Number: 13963905 (No description) Part Number: 13963929 (No description)