Piston and Ring Set (Standard / STD) for Nissan Skystar 2.5 YD25DDTi Engine

High-performance piston and ring set with Standard (STD) 89.00 mm specifications, specifically engineered for Nissan Skystar models equipped with the 2.5L YD25DDTi turbo diesel engine. Manufactured from premium-grade reinforced aluminum alloys to withstand the extreme thermal loads and high combustion pressures of YD series common-rail systems. These pistons feature precision-machined ring grooves and specialized skirt coatings for enhanced durability and friction reduction. The included high-tensile ring set ensures superior cylinder sealing, effectively preventing blow-by and oil consumption while restoring original engine torque and fuel efficiency.