MAHLE 3021358B Performance Piston Ring Set Bore Steel Napier Ring - 3.586in 1.0mm 2nd

The MAHLE 3021358B is a high-performance piston ring set engineered for precision engine builds requiring a 3.586-inch bore diameter. This specialized ring set features a steel Napier-style second ring design, offering enhanced oil control and improved sealing characteristics compared to standard ring configurations.

Key Specifications:

• Bore diameter: 3.586 inches
• Ring width: 1.0mm
• Radial wall thickness: 0.136 inches
• Performance steel Napier 2nd ring design for superior oil control
• Plain ring set configuration

MAHLE is a globally recognized OEM supplier known for manufacturing precision-engineered piston rings that meet strict tolerances for racing and performance applications. The Napier ring profile features an undercut design that provides excellent oil distribution while maintaining optimal compression sealing. The steel construction offers increased durability and heat resistance compared to cast iron alternatives, making this ring set ideal for high-performance and racing engine builds where reliability under extreme conditions is essential.