OER Parts offers a wide selection of Foam Padding & Seat Buns for your Chevrolet K20 Pickup. OER Parts offers Chevrolet K20 Pickup Standard Seat Foam, Chevrolet K20 Pickup Deluxe Seat Foam, Chevrolet K20 Pickup Seat Burlap Set, Chevrolet K20 Pickup Universal Seat Foam, Chevrolet K20 Pickup Bucket Seat Foam, Chevrolet K20 Pickup Front Split-Bench Seat Foam, and Chevrolet K20 Pickup Rear Bench Seat Foam.