MAHLE 3021245 Performance Piston Ring Set Bore Steel Napier - 4.085 1.5mm

The MAHLE 3021245 is a high-performance piston ring set engineered for precision engine builds requiring a 4.085-inch bore diameter. This professional-grade ring set features advanced Steel Napier ring technology with a 1.5mm top ring thickness, designed to deliver exceptional sealing, durability, and performance in demanding applications.

Key Specifications:

• Bore Size: 4.085 inches
• Top Ring Thickness: 1.5mm
• Ring Design: Steel Napier THM-13 configuration
• Radial Wall Thickness: 0.151 inches
• Plain ring profile for optimal cylinder wall contact

Features and Benefits:

• Premium steel construction provides superior wear resistance and longevity
• Napier ring design enhances oil control and reduces consumption
• Precision-machined to MAHLE's exacting tolerances for consistent compression and sealing
• THM-13 specification ensures compatibility with performance engine builds
• Plain ring face optimized for rapid break-in and reliable sealing

MAHLE is a globally recognized OEM supplier known for producing premium engine components trusted by professional engine builders and automotive manufacturers. This ring set is ideal for custom engine builds, performance rebuilds, and racing applications where precise bore sizing and reliable ring performance are critical.