Part Number: 0857372 (Receiver/dryer) Part Number: 0857372-A (Receiver/dryer) Part Number: 0857374 (Receiver-dryer,w/trinary swtch) Part Number: 0857374-B (Receiver-dryer,w/trinary swt) Part Number: 0857-38 (No description) Part Number: 08574 (No description) Part Number: 0857406-0001 (Strap) Part Number: 0857-425-0453 (Clamp) Part Number: 08-57438 (Piston) Part Number: 0857-49 (Capacitor 70uf, +50) Part Number: 085749B0021 (Available) Part Number: 085751-001 (Spring-liner) Part Number: 085756 (Microphone arm) Part Number: 08-57-561-300 (Component)