MAHLE 3021321 Performance Steel Napier Ring Set Bore - 2nd 3.2382in 1.2mm

The MAHLE 3021321 is a high-performance piston ring set engineered for precision engine builds requiring exact bore specifications. This premium ring set features a steel Napier-style second ring design, optimized for superior oil control and combustion sealing in demanding applications.

Key Specifications:

• Bore Size: 3.2382 inches (82.25mm)
• Ring Width: 1.2mm nominal thickness
• Radial Wall Thickness: 0.135 inches
• Ring Style: Steel Napier 2nd ring configuration
• Finish: Plain ring surface

MAHLE's steel Napier ring design provides enhanced durability and oil control compared to standard cast iron rings, making this set ideal for performance rebuilds, racing applications, and high-stress environments. The precise 3.2382-inch bore sizing ensures proper ring-to-cylinder wall contact for optimal compression sealing and reduced blow-by. Each ring is manufactured to strict tolerances using MAHLE's advanced metallurgy and coating processes, delivering reliable performance across a wide range of operating conditions.

This ring set is designed for professional engine builders and serious enthusiasts who demand exact fitment and proven performance from their internal engine components.