Stant 12016 Threaded Radiator Cooling System Tester Adapter

• Required to fit late model Audi, Porsche & VW cooling systems with threaded filler necks
• Works With 12270 Stant Cooling System Tester
• Thread specifications Metric: 48mm x 3.0
• Professional quality

12016 threaded adapter is required to fit late model Audi, Porsche & VW cooling systems with threaded filler necks. Thread specifications :48 x 3 : i.e 3 threads per inch and 48 is in mm which converts to 1.89” .