MEI / AirSource TruckAir Parts 16-4156 - Master O-Ring Kit - Universal Application Part No: 16-4156

The Truck Air Parts 16-4156 Universal Master O-Ring & Seal Kit is a comprehensive service kit tailored for heavy-duty truck HVAC systems. Containing multiple sizes of O-rings and stat-seal washers, the kit fits a variety of fittings used in both R12 and R134a systems. Designed for Class 6 to Class 8 trucks, it covers hose connections, compressor ports and capillary terminations—ensuring proper sealing and system integrity under demanding conditions. Ideal for maintenance fleets, vocational trucks and repair shops, this kit helps reduce downtime and refrigerant loss. Available from Wofford Truck Parts for stocked availability and reliable quality.