MAHLE 41916CP.030 Moly Piston Ring Set 0.030" Oversize Ford 3.0L OHV Vulcan

The MAHLE 41916CP.030 is a premium plasma-moly piston ring set engineered for the Ford 3.0L OHV Vulcan 6-cylinder engine at +0.030" oversize bore. Designed to OE standards, this ring set delivers reliable combustion sealing, reduced oil consumption, and long service life — making it the ideal choice for engine rebuilds or re-ring jobs on worn or bored-over engines.

Piston rings serve a critical function: they seal the combustion chamber to prevent combustion gases from entering the crankcase, and keep engine oil out of the combustion chamber. If your engine is burning oil, losing compression, or undergoing a full rebuild, replacing the piston rings is an essential step.

Key Features:

• Plasma-moly top ring (UCR): Carbon steel construction with plasma-moly facing for superior wear resistance and reduced friction
• Tapered hook groove (THG) second ring (LCR): Cast iron construction providing excellent oil control and combustion gas management
• CP-20 oil control ring assembly (OCR): Stainless steel with chrome facing and shallow groove design for optimal cylinder wall sealing and oil drain-back
• Ring dimensions: UCR 1.5mm / LCR 1.5mm / OCR 3.0mm axial height
• +0.030" oversize — designed for use with cylinders bored 0.030" over standard
• Pre-lapped for immediate seating, minimizing engine break-in time
• Engineered to OE tolerances for precise fit and reliable performance
• Sold as a complete per-cylinder set

MAHLE is the world's leading manufacturer of piston rings, and the Original line reflects decades of OE engineering expertise. The 41916CP.030 ring set is optimized for reduced ring mass and friction while maximizing compression retention and oil economy — the hallmarks of a quality rebuild component.