MAHLE 3021294 Performance Steel Napier Ring Set Bore - 4.045

The MAHLE 3021294 is a high-performance steel piston ring set engineered with Napier design technology for superior sealing and durability in demanding applications. This precision-manufactured ring set features a 4.045-inch bore diameter with a .043-inch ring thickness and .135-inch radial wall, designed to deliver optimal compression sealing and oil control.

Key Specifications:

• Bore Diameter: 4.045 inches
• Ring Thickness: .043 inches
• Radial Wall: .135 inches
• Material: Performance-grade steel construction
• Design: Napier THM-13 configuration
• Finish: Plain ring profile

MAHLE's performance steel ring sets are manufactured to exacting tolerances using premium materials, ensuring consistent performance across a wide range of engine applications. The Napier design provides enhanced oil control characteristics while maintaining exceptional durability under high-stress conditions. This ring set is ideal for performance rebuilds, racing applications, and high-output engine builds requiring reliable compression sealing.