MAHLE 4165MS-1115 Piston Ring Set Bore File Fit - 4.160 1.5mm 3.0mm

The MAHLE 4165MS-1115 is a premium file-fit piston ring set engineered for high-performance engine builds requiring precise bore specifications. Designed for a 4.160" bore diameter with a +0.005" oversize tolerance, these rings deliver exceptional sealing and durability in demanding applications.

Key Specifications:

• Bore Size: 4.160" + 0.005" oversize
• Ring Thickness: 0.043" (1.0922mm)
• Top Ring Width: 1.5mm
• Second Ring Width: 3.0mm
• File-Fit Design: Allows precise end-gap adjustment for optimal compression sealing

Features and Benefits:

• MAHLE OE-quality construction ensures reliable performance and longevity
• File-fit configuration enables custom fitting to match specific bore tolerances
• Premium materials provide excellent heat resistance and wear characteristics
• Precision-manufactured for consistent compression and oil control
• Ideal for performance rebuilds, racing applications, and precision engine machining

This ring set is designed for professional engine builders and performance enthusiasts who demand exacting tolerances and the ability to custom-fit rings to their specific build requirements. The file-fit design allows the installer to achieve the precise end gap specification needed for their application.