Diamond Power P816-STD Piston Set 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 98-01 Mazda B2500 2-5L 153CID SOHC 8V L4 Pistons made with the best quality materials (Electrolytic Aluminum, Cast Aluminum, Tin and Polish)