Description Peterbilt Expansion Valve Replaces OEM: 5X010343 Application: Peterbilt Description: Expansion Valve Int Equalized Inlet: Metric Male Insert O-Ring Inlet Size: M16 Outlet: Evaporator Side – Male Insert O-Ring Outlet Size: M20 Rating: 1 1/2 ton Type of Operation: Internal Equalized Refrigerant Type: R12/R134a O-Ring #1: 0075 O-Ring #2: 0077 Hose Inlet Size: M16 Hose Outlet Size: M20 Note: 16.5″ Cap Tube length