Expansion Valve For Freightliner, Mack, and Peterbilt Trucks Parts Immediate Availablity Will Vary. Please Contact For Lead Time Before Purchasing. Block Type A/C Expansion Valve # 1602. Hose Side- In: # 6 Female O'ring, Out: # 10 Female O'ring. Evaporator Suction Side- In: # 8 Female O'ring. Out: # 10 Female