This is an aftermarket "Quick On" style locking gas cap. This cap installs easily by turning the key. It is not a screw on style. Quality cap and includes 2 keys. 2 29/32" diameter. Protect your fuel system from vandalism and theft. Inexpensive insurance. This cap fits the following vehicles.
BUICK 1997 - 2005
CADILLAC 1998 - 2005
CHEVROLET 1996 - 2005
GMC 1996 - 2005
ISUZU 1997 - 2004
OLDSMOBILE 1996 - 2004
PONTIAC 1997 - 2005
SATURN 1998 - 2006