Clevite 42308CP.010 Engine Piston Ring Set for Subaru 2.5L

The Clevite 42308CP.010 is a premium OE-quality piston ring set engineered for Subaru 2.5L H4 boxer engines, including the EJ253, EJ255, and EJ257 engine variants. This ring set features a +0.010" oversize bore dimension, designed for engines that have been machined or require slight overbore during rebuild applications.

Advanced Engineering and Construction:

• Manufactured by Mahle, the world's largest piston ring manufacturer
• Engineered to OE specifications for precise fit and performance
• Designed to reduce friction and ring mass while minimizing oil consumption
• Extended fatigue resistance for increased durability and service life
• Optimized for modern engine demands including higher temperatures and cylinder pressures

Key Features:

• Complete piston ring set for one cylinder bank rebuild
• Premium materials engineered for reliability and longevity
• Proper ring loading and oil control characteristics
• Designed to seal combustion chambers and prevent oil migration

This piston ring set is ideal for engine rebuilds, addressing compression loss, or resolving oil consumption issues in Subaru 2.5L engines found in models such as the Baja, Forester, Impreza, Legacy, and Outback (2004-2015). When replacing piston rings, proper installation procedures and gap measurement are essential for optimal engine performance and longevity.