Diamond Power Oil Pump works with Audi A4 2.7L 2.8L 2 Year Warranty (This product must be installed by a certified professional mechanic) Same day shipping when purchased before 3pm EST Our products are tested and meet or exceed OEM performance requirements Fits 00-01 Audi A6 Quattro Base 6Cyl 2-8L Oil Pumps are made with the best quality materials (aluminum) required by the manufacturer