MAHLE 3021243 Performance Piston Ring Set Bore - 4.170

The MAHLE 3021243 performance piston ring set is engineered for high-performance engine applications requiring precise bore specifications and enhanced durability. This ring set features a 4.170-inch bore diameter and is designed to deliver superior sealing and cylinder pressure retention in demanding conditions.

Key Features:

• 4.170-inch (105.92mm) bore diameter for precision fitment
• Performance Napier-style steel second ring for improved oil control and reduced friction
• 1.0mm ring thickness providing optimal tension and sealing
• 0.136-inch radial wall thickness for enhanced structural integrity
• Plain ring design for reliable performance across a wide range of applications
• Manufactured by MAHLE, a global leader in engine components and performance parts

MAHLE performance ring sets are manufactured to exacting standards using premium materials and advanced manufacturing processes. The Napier-style second ring configuration provides excellent oil control while minimizing cylinder wall friction, making this ring set ideal for performance street engines, racing applications, and engine rebuilds where maximum reliability is required.