Genuine GM 15751221 Engine Cooling Fan Shroud, Lower Genuine Oem:Yes, Category 2:Cooling, Fitment Footnotes:Diag Ref #4, 6.0 Liter:6.0 Liter, Quantity Needed:1 Brand:GM, Fitment Type:Direct Replacement, 4.8, 5.3,:4.8, 5.3,, Item Name:Lower Shroud, Category 1:Cooling System Manufacturer Part Number:15751221, Category 3:Cooling Fan, 4.8:4.8, 5.3,, Part Ref# On Diagram:ONLY PART REFERENCE #4 ON THE DIAGRAM IS, Placement On Vehicle:Lower