Part Number: 137648-01-01 (Instrument amplifier / lear sei) Part Number: 1376-48-01-02 (Amp) Part Number: 137648L (Fitting assy.) Part Number: 137649 (Standoff) Part Number: 13764993 (Component) Part Number: 13765 (Desco) Part Number: 137650 (Resistor) Part Number: 13765001 (Component) Part Number: 13765-002 (Box assembly-carbure) Part Number: 1376-50-116 (Nut, plain) Part Number: 1376-50-117 (Thermostat) Part Number: 1376-50-156 (Connector recept) Part Number: 1376-50-163 (Gasket) Part Number: 1376-50-181 (Retain, pac)