OER Parts offers a wide selection of Foam Padding & Seat Buns for your GMC Yukon. OER Parts offers GMC Yukon Standard Seat Foam, GMC Yukon Deluxe Seat Foam, GMC Yukon Seat Burlap Set, GMC Yukon Universal Seat Foam, GMC Yukon Bucket Seat Foam, GMC Yukon Front Split-Bench Seat Foam, and GMC Yukon Rear Bench Seat Foam.