General Motors 12634319, Serpentine Belt Genuine Oem:Yes, Category 2:Engine Service, Superseded Part Number:12618358, Part Ref# On Diagram:ONLY PART REFERENCE #1 ON THE DIAGRAM IS, Sme:_2271 Brand:GM, Fitment Type:Direct Replacement, Other Part Number:12618358, 24435940, 24466972, Quantity Needed:1 Manufacturer Part Number:12634319, Category 3:Belts & Pulleys, Item Name:Serpentine Belt, Category 1:Maintenance & Lubrication