2012 BUICK ENCLAVE AIR CLEANER OUTLET DUCT 20871478 Genuine Oem:Yes, Category 2:Engine / Transaxle, Item Name:Outlet Duct, Category 1:Engine Brand:GM, Fitment Type:Direct Replacement, Part Ref# On Diagram:ONLY PART REFERENCE #9 ON THE DIAGRAM IS Manufacturer Part Number:20871478, Category 3:Air Intake, Quantity Needed:1