Car A/C Leak Test Plug Kit, Air Conditioning Expansion Valve Sealing Test Tool

This professional car air conditioning leak test plug kit is specially designed for testing refrigerant leakage of automotive A/C expansion valves. It seals the expansion valve pipeline tightly, allowing technicians to perform pressure holding, leak detection, vacuum pumping and refrigerant filling operations without disassembling the entire air conditioning system. Made of high-precision aluminum alloy and brass with wear-resistant rubber sealing rings, this tool works for most European mainstream vehicles including BMW, Mercedes-Benz, Audi, Volkswagen, Land Rover, Volvo, Porsche and Ford, greatly improving the efficiency of auto air-conditioning maintenance.

✅ Accurate A/C System Leakage DetectionEffectively seals the inlet and outlet ports of the expansion valve to form a closed pipeline. Support pressure retention test, vacuum pumping and refrigerant charging, quickly locate tiny leak points in the air conditioning system, avoid repeated disassembly and save maintenance time.

✅ Premium Durable Material ConstructionThe main body adopts precision CNC-machined aluminum alloy and corrosion-resistant brass, matched with high-temperature-resistant fluorine rubber O-rings. It delivers excellent sealing performance, no air leakage under high pressure, wear-resistant and long service life for long-term repair work.

✅ Complete Matching Tool SetComes with 2 aluminum sealing plugs with color-coded O-rings, 2 brass threaded adapters and 1 special disassembly wrench. All accessories are perfectly matched to the expansion valve interface, convenient for quick installation and disassembly.

✅ Wide Compatibility for European VehiclesCompatible with BMW, Mercedes-Benz, Audi, VW, Land Rover, Volvo, Porsche, Ford, Rolls-Royce and other mainstream European models. Perfect for auto repair shops, 4S service centers and professional vehicle maintenance technicians.

✅ Simple & Time-Saving OperationNo complicated modification required. Install the test plugs at the expansion valve ports, connect the pressure gauge set, then you can directly carry out leak test and system maintenance. Greatly reduces repeated disassembly damage to original auto parts.