MAHLE 3021295B Performance Steel Napier Ring Set Bore - THM-13 4.015

The MAHLE 3021295B is a high-performance steel piston ring set engineered for precision engine builds requiring exceptional durability and sealing performance. This Napier-style ring set is designed for a 4.015-inch bore diameter and features MAHLE's advanced metallurgy and manufacturing processes.

Key Specifications:

• Bore Size: 4.015 inches
• Ring Thickness: 0.043 inches
• Radial Wall: 0.135 inches
• Configuration: Plain ring design
• Material: Performance steel construction
• Style: Napier THM-13 profile

MAHLE performance ring sets are manufactured to exacting tolerances and provide superior wear resistance, optimal cylinder wall conformability, and consistent compression sealing. The steel construction offers enhanced strength for high-performance and racing applications where standard cast iron rings may not provide adequate durability. Each ring set is precision-machined to ensure proper fit and long-lasting performance in demanding engine builds.