OER Parts offers a wide selection of Fuel Doors & Hardware for your 2003 GMC Sonoma. OER Parts offers 2003 GMC Sonoma Fuel Filler Neck Pocket Sleeve, 2003 GMC Sonoma Fuel Filler Door, 2003 GMC Sonoma Plastic Fuel Tank Filler Door, 2003 GMC Sonoma Rear Fuel Door with Spring, 2003 GMC Sonoma Fuel Filler Door Bumper, 2003 GMC Sonoma Fuel Door Emblem, 2003 GMC Sonoma Locking Billet Fuel Door, 2003 GMC Sonoma Fuel Filler Door Tension Spring and 2003 GMC Sonoma Fuel Door Lock.