Supertech Subaru 92.50mm Bore Piston Rings - 1.2x3.27mm / 1.2x3.7mm / 2.5x2.8mm

This is a set of Supertech piston rings designed for Subaru engines with a 92.50mm bore. Piston rings are a critical part of your engine's internal workings, sealing the combustion chamber to maintain compression and controlling the oil that lubricates the cylinder walls. When rebuilding or refreshing an engine, new rings ensure optimal performance and longevity.

This particular set features specific ring dimensions: the top ring is 1.2mm, the second ring is 3.27mm, and the oil control ring is a 1.2x3.7mm and 2.5x2.8mm combination. These precise measurements are important for creating the correct seal against the cylinder wall, preventing blow-by and excessive oil consumption. Supertech is known for well-built engine components, and this ring set is designed to meet the demands of a properly functioning engine.

When installing these rings, it's important to ensure the cylinder walls are clean and within spec. Refer to your vehicle's service manual for the correct installation procedure and any specific tools required.