MAHLE 3021292 Performance Steel Napier Piston Ring Set Bore - THM-13 4.040

The MAHLE 3021292 is a high-performance steel piston ring set designed for precision engine builds requiring a 4.040-inch bore diameter. This professional-grade ring set features MAHLE's Steel Napier THM-13 design, engineered to deliver superior sealing, reduced friction, and enhanced durability in demanding performance applications.

Key Specifications:

• Bore Size: 4.040 inches
• Ring Thickness: 0.043 inches
• Radial Wall: 0.135 inches
• Configuration: Plain ring design
• Material: Performance steel construction
• Design: Napier THM-13 profile

Features and Benefits:

• Premium steel material provides excellent wear resistance and heat dissipation
• Napier THM-13 profile optimized for efficient oil control and combustion sealing
• Precision-manufactured to tight tolerances for consistent compression and oil control
• Plain ring design suitable for a wide range of performance applications
• MAHLE's proven engineering ensures reliable long-term performance

This ring set is ideal for engine builders and performance enthusiasts seeking reliable, high-quality piston rings for rebuilds, upgrades, or racing applications. MAHLE's reputation for precision manufacturing ensures proper fitment and optimal engine performance.