Intake And Exhaust Valve Stem Seals : Bottom Seal : 0.4750, Inner Seal Height : 0.6385, Material : Viton, Nominal Guide O.D. : 0.480-0.500, Nominal Stem Diameter : 7MM, Compatible With : 1994 - 2009 Grand Marquis, 1994 - 1997 Mercury Coougar, 1994 - 2011 Lincoln Town Car, 1994 - 2011 Crown Victoria, 1996 - 2004 Ford Mustang 4.6L / 281C.I. V8, SOHC 16 Valve, Vin : 6, 9, V, W