Manufacturer Part Number #
10591D 9MGC791 MGC791 31778D 40791 35039D 40591 10591

Package：
Fuel Tank Cap x1
Key x2

Compatible with Chevrolet as follow：
Chevrolet C10 1981
Chevrolet C2500 1992
Chevrolet C3500 1990
Chevrolet Express 3500 2000-2013
Chevrolet Express 4500 2011
Chevrolet K2500 1995
Chevrolet K3500 1988, 2000
Chevrolet K5 Blazer 1984
Chevrolet P30 1997
Silverado 2500 HD 2001-2016
Silverado 2500 HD Classic 2007
Silverado 3500 2001-2006
Silverado 3500 Classic 2007
Silverado 3500 HD 2007-2019

Compatible with GMC as follow：
GMC C3500 2000
GMC K3500 1986
GMC Savana 3500 2002-2012
GMC Sierra 2500 HD 2001-2015
GMC Sierra 2500 HD Classic 2007
GMC Sierra 3500 2001-2006
GMC Sierra 3500 Classic 2007
GMC Sierra 3500 HD 2007-2017
GMC V3500 1988

Compatible with Ford as follow：
Ford E-350 Club Wagon 2003
Ford E-350 Econoline 1989-1998
Ford E-350 Super Duty 2000-2003
Ford Excursion 2001-2005
Ford F-250 1987-1996
Ford F-250 HD 1997
Ford F-250 Super Duty 1999-2008
Ford F-350 1987-1997
Ford F-350 Super Duty 1999-2008

Compatible with Dodge as follow：
Dodge D250 1989-1990
Dodge D350 1991-1993
Dodge Ram 2500 1994-1999
Dodge Ram 3500 1994-1999
Dodge W250 1990-1993
Dodge W350 1993