Engine Piston Set (6 PCS) +0.50mm Audi A6 A7 A8 Q7 Q8 S4 S5 SQ5 3.0T EA839

Internal engine wear or damage to cylinder walls in the high-performance Audi 3.0T EA839 engine often requires professional boring and honing to restore the block's integrity. When the cylinders are oversized to remove scoring or taper, standard pistons can no longer be used. This +0.50mm (+0.020in) oversized piston set is specifically engineered to accommodate a refurbished cylinder block, ensuring optimal compression and piston-to-wall clearances. Each piston is manufactured from premium alloys to withstand the high thermal and mechanical loads of a turbocharged V6. Complete with high-performance rings, this set restores factory-level oil control and combustion efficiency, providing a reliable solution for heavy-duty engine rebuilds.