Piston and ring set designed for fitment on 3.0 petrol engines with engine code N55B30 and N55.Compatible with applications including X Series and Z4 models equipped with the specified engine.This set includes one standard size piston with rings.Optimized for use in N55B30 powered vehicles to support efficient and power delivery. Reference numbers: 11258619196, 11257610297, 11257589824, 11257584125, 11257624409, 11257645958, 11257610298, 11 25 7 610 297, 11 25 7 610 298, 11 25 8 619 196, 11 25 7 589 824, 11 25 7 587 914, 8 619 196 Interchange numbers: 11 25 7 610 298, 11 25 7 624 409, 11 25 7 645 958, 11 25 8 619 196, 11 25 7 589 824, 11 25 7 587 914, 40653600, 130007000200, 130007000221, WG2375309, WG2375310, WG2396168, PR78-000, FR10-075200, 2N5230, 800118410000, 081 RS 00111 0N0, 081 RS 00111 0N1, 120007004500, 120007004521, WG1925064 Compatibility Disclaimer: This is an part.Any brand names or model designations mentioned are used solely for the purpose of demonstrating compatibility.