Engine Piston Ring Set (91.60 mm 0.50 Oversize) for Hyundai & Mitsubishi 2.5 Diesel (1988-Onwards)

High-performance engine piston ring set with a 91.60 mm (0.50 mm Oversize) diameter, specifically engineered for the 2.5L (4D56 / D4B) series engines found in Hyundai and Mitsubishi models (1988-onwards). These rings are designed for engines undergoing professional cylinder boring and reconditioning to 0.50 mm over standard. Manufactured from premium-grade, heat-resistant alloys to withstand the high internal pressures of diesel combustion. Precision-machined to ensure superior oil control and cylinder sealing, effectively preventing blow-by and oil consumption. Restores original engine torque and fuel efficiency in rebuilt units across both early and late model configurations.