MAHLE 3011189B Performance Gas Nitride Piston Ring Set Bore - 4.140

The MAHLE 3011189B is a high-performance piston ring set engineered for demanding applications requiring superior durability and sealing. This ring set features advanced gas nitride steel construction, providing exceptional wear resistance and extended service life in high-temperature, high-stress environments.

Key Specifications:

• Bore diameter: 4.140 inches
• Top ring thickness: 0.043 inches (1/16")
• Oil ring thickness: 0.157 inches (5/32")
• Gas nitride steel construction for enhanced durability
• RW (Rectangular Wire) oil ring design
• Sold as bulk ring set (individual rings, not packaged per cylinder)

Features and Benefits:

• Gas nitriding process creates an extremely hard surface layer that resists scuffing and wear
• Precision-manufactured to tight tolerances for optimal ring seal and reduced blow-by
• Designed for performance and racing applications where reliability is critical
• Compatible with various engine builds requiring 4.140" bore diameter
• MAHLE's proven engineering ensures consistent performance under extreme conditions

This ring set is ideal for engine builders and performance enthusiasts looking for premium-quality piston rings that deliver maximum sealing efficiency and long-term durability. The gas nitride treatment provides superior protection against combustion gases and maintains ring tension throughout the engine's operating range.