Cooling System AdapterFor pressurizing cooling system. Applicable: Cadillac: Catera 1997-2001, Ford/Lincoln/Mercury: Cougar/Thunderbird V8 1993-1997, Crown Vic/Grand Marquis 1993-2003, Expedition 2003-2006, Excursion 2000-2003, Explorer 2002-2004, E-Series Vans,and F-Series Trucks with male threads on coolant tank, Freestyle 2005, Five Hundred 2005, Mark VIII 1993-1998, Navigator 1998, and Sable 1996-2003, Sterling 2005, Taurus 1996-2006, Towncar 1993-1999, Thunderbird 1995 and 2003, and Windstar 2002-2003. International: 466 engine with male threadson filler neck. Mercedes: ML 320, and ML 430 1998-2005.