6pcs 9A710706530 06M198151 06M107099 06M107100 EA839 Engine Pistons Rings Set for A6 S4 S5 B9 3.0L This engine piston and rings set is designed for 3.0L engines used in A6, S4, S5, and B9 models.The set includes six pistons and rings, each equipped with 20mm piston rings to proper sealing and reduced friction within the engine.Constructed from grade materials, the components are engineered to support horsepower outputs of 250kw (340ps) and 260kw (354ps), making them suitable for performance-oriented applications. .Each set comes with clear installation instructions to facilitate setup.Compatibility is specific to 3.0L EA839 engine platforms, allowing integration into select vehicle models with confidence. Compatibility Notice: This is an aftermarket product.Mention of brands is for fitment identification only.