MAHLE 3021369B Performance Piston Ring Set Bore Steel Napier Ring - 3.902 2nd

The MAHLE 3021369B is a high-performance piston ring set engineered for precision engine builds requiring a 3.902-inch bore diameter. This professional-grade ring set features MAHLE's advanced metallurgy and coating technologies designed to deliver superior sealing, reduced friction, and enhanced durability under demanding operating conditions.

Key Specifications:

• Bore Size: 3.902 inches
• Ring Width: 1.0mm
• Radial Wall Thickness: 0.136 inches
• Second Ring Design: Steel Napier profile
• Top Ring: Plain ring design

Performance Features:

• Steel Napier second ring provides excellent oil control and gas sealing
• Plain top ring design optimized for high-performance applications
• Precision-machined to MAHLE's exacting tolerances for consistent performance
• Advanced materials resist heat, wear, and combustion pressures
• Designed for performance rebuilds and racing applications

MAHLE is a globally recognized OEM supplier and aftermarket leader in engine components, trusted by professional engine builders and racers worldwide. This ring set represents MAHLE's commitment to precision engineering and performance excellence.