MAHLE File Fit Piston Ring Set Bore

The MAHLE File Fit piston ring set is an engine piston ring set for engine builders and rebuilders. The rings are supplied with an end gap that is deliberately left tight. You file each ring to the exact end gap your bore and application call for. This lets you set clearances precisely for performance, racing, and custom engine builds.

Key Features:

• File-fit design lets you set the ring end gap to match your bore size and build requirements
• Engineered by MAHLE, a leading OE supplier of pistons, rings, and engine components
• Supports precise ring gap control for good cylinder sealing, compression, and oil control
• Designed for engine rebuilds, performance builds, and custom engine assemblies
• Each part number is made for a specific bore diameter, so choose the one that matches your pistons and cylinder bore

Correct end gap is essential to engine reliability. A gap that is too tight can let the ring ends butt together as the engine heats up. A gap that is too loose can cause blow-by and lost power. MAHLE File Fit ring sets give you control over this critical clearance. Always follow the engine builder's or manufacturer's recommended end gap specifications when you install them.