The Enginetech S89216-STD Engine Premium Piston Ring Complete Set is designed to deliver reliable performance and precise engine sealing for a range of Subaru models from 2004 to 2009. Crafted with high-quality nitride material, these piston rings ensure durability and consistent operation. The set includes top compression rings, second compression rings, and oil rings, all engineered to meet SAE guidelines for end gaps, providing optimal sealing and minimal blow-by. With a ring outside diameter of approximately 3.512 inches, this kit is tailored specifically for Subaru engines, offering a direct fit for models such as Outback, Legacy, and B9 Tribeca.

Each ring in the set features specific dimensions: the top and second compression rings are 1.20 mm thick, while the oil ring measures 2.50 mm in thickness. The spring open height is 1.030 inches, and the closed height is 1.360 inches, with open pressure rated at 159 psi and closed pressure at 110 psi. These specifications help maintain proper compression and oil control, contributing to engine longevity and performance. Enginetech's commitment to quality and precision makes this piston ring set a valuable component for engine rebuilds or repairs.

Engineered specifically for rebuilder needs, the S89216-STD set offers excellent spring tension and proper end gap consistency, ensuring smooth piston operation and efficient sealing. As part of Enginetech’s extensive product line, these piston rings are ideal for professional mechanics and DIY enthusiasts alike who seek high standards and dependable parts for their Subaru engines. Trust in Enginetech’s legacy of quality since 1982 to help restore your vehicle’s performance and efficiency.

Features:

• Material: Nitride for enhanced durability and wear resistance

• Spring Open Height: 1.030 inches for optimal tension

• Open Pressure: 159 psi to ensure proper sealing

• Top Compression Ring Thickness: 1.20 mm for reliable compression

• Second Compression Ring Thickness: 1.20 mm for effective sealing

• Oil Ring Thickness: 2.50 mm for efficient oil control

• Ring Outside Diameter: approximately 3.512 inches for precise fit

• Closed Pressure: 110 psi for consistent compression

• Spring Closed Height: 1.360 inches for proper tension

• Designed to fit Subaru Outback, Legacy, and B9 Tribeca models from 2004-2009

Fits Following Models:
2001 Subaru Outback
2002 Subaru Outback
2003 Subaru Outback
2004 Subaru Outback
2005 Subaru Outback
2006 Subaru B9 Tribeca
2006 Subaru Outback
2007 Subaru B9 Tribeca
2007 Subaru Outback
2008 Subaru Legacy
2008 Subaru Outback
2009 Subaru Legacy
2009 Subaru Outback