Pistons and rings with part numbers 11257542292 and 11257537124 designed for engine model N62 4.8L.Compatible with vehicle models E60, E53, E63, E64, and E66.Components are engineered to proper fit and function within the engine system.Constructed using materials suitable for under standard conditions.Designed to support efficient engine performance and smooth integration during assembly.Package includes one set of pistons and rings.Fits naturally aspirated V8 4.8L (4799cc) engine applications across multiple vehicle configurations produced between 2004 and 2010.verify compatibility using part numbers before installation. Compatibility Disclaimer: This is an part.Any brand names or model designations mentioned are used solely for the purpose of demonstrating compatibility.