Alt Parts Also Available as Locking (10503) or Keyed Alike (17503) Color Black W/Threaded Fuel Cap. 1997-1997 Ford F-250. 1996-1996 Ford Explorer. 2001-2001 Ford E-350 Super Duty. Alt Parts Also Available as Locking (10503) or Keyed Alike (17503) Color Black W/Threaded Filler Neck.