25871805 DOOR 16.570 Genuine Oem:Yes, Category 2:Pick Up Box, Fitment Footnotes:Diag Ref #13, Item Name:Fuel Door, Category 1:Body Hardware Brand:GM, Fitment Type:Direct Replacement, Superseded Part Number:22755101, Part Ref# On Diagram:ONLY PART REFERENCE #13 ON THE DIAGRAM I, Placement On Vehicle:Rear Manufacturer Part Number:25871805, Category 3:Pick Up Box Components, Other Part Number:22755101, 15165499, 15940676, Quantity Needed:1