MAHLE 3021352 Performance Piston Ring Set Bore Steel Napier Ring - 4.075 2nd

The MAHLE 3021352 is a high-performance piston ring set engineered for demanding racing and performance engine applications. This premium ring set features a bore size of 4.075 inches with a 1.5mm ring thickness and .151" radial wall (RW) dimension, designed to deliver exceptional sealing and durability under extreme conditions.

Key Features:

• 4.075-inch bore diameter for precise cylinder fit
• Steel Napier-style second compression ring for superior oil control and sealing
• 1.5mm ring thickness optimized for performance applications
• .151-inch radial wall dimension ensures proper tension and conformability
• Plain ring design without coating for specific racing applications
• Manufactured by MAHLE, a leading OE and performance piston ring supplier

MAHLE's performance ring sets are precision-manufactured to exacting tolerances and are trusted by professional engine builders and racers worldwide. The steel Napier second ring design provides excellent combustion sealing while effectively controlling oil consumption, making this set ideal for high-performance street engines, circle track racing, and other demanding applications where reliability and power are critical.