MAHLE 3021348B Performance Piston Ring Set Bore Steel Napier Ring - 4.320 2nd

The MAHLE 3021348B is a high-performance piston ring set engineered for demanding racing and performance engine applications. This precision-manufactured ring set features a 4.320-inch bore diameter and incorporates advanced materials and design for superior sealing and durability under extreme conditions.

Key Features:

• 4.320-inch bore diameter for precise fitment
• Steel Napier-style second compression ring for enhanced sealing and oil control
• 0.043-inch ring thickness (1/16") for robust construction
• 0.135-inch radial wall thickness for improved stability
• Plain ring set configuration without special coatings
• Performance-grade materials designed for high-RPM and high-boost applications
• Manufactured to exacting MAHLE tolerances for consistent quality

MAHLE is a globally recognized OEM supplier known for producing premium engine components that meet the strictest performance and durability standards. This ring set is ideal for engine builders and performance enthusiasts seeking reliable, race-proven piston ring technology for their custom builds or engine rebuilds.