Victor 41550CP.020 Plasma-Moly Piston Ring Set Oversize - 0.020

The Victor 41550CP.020 is a premium plasma-moly piston ring set manufactured to exacting OE specifications, designed for engines requiring a +0.020" oversize bore. This set is engineered for the Ford 4.0L (244 cu in) and Mazda 4016cc engines and delivers superior sealing, reduced friction, and extended service life compared to standard replacement rings.

Built using Mahle's patented HV385 thermal spray face coating over an SAE 9254 high-alloy steel base material, these rings are engineered to withstand the extreme cylinder pressures, elevated temperatures, and high RPM demands of modern engines. The plasma-moly face coating promotes rapid seating and delivers outstanding wear resistance.

Key Features:

• +0.020" oversize bore fitment for freshly bored or reconditioned cylinders
• Plasma-moly (CP) coating for fast break-in and long-term durability
• Compression rings feature a barrel-faced contact area and CNC-controlled gap chamfer to maximize compression and minimize blow-by
• Intermediate rings incorporate a reverse twist design for superior groove side sealing, with taper-race machining to enhance wall contact
• CP-20 oil ring assemblies with a 20-degree ear angle provide optimal side sealing against the cylinder wall
• Oil ring expander features a special chemical polish for enhanced oil drain-back
• Rings are pre-lapped at the factory to seat immediately, virtually eliminating break-in time
• Ring tension optimized per application for reduced friction and extended engine life

The Victor 41550CP.020 piston ring set is the ideal choice for engine rebuilders seeking a direct-fit, installer-friendly solution that meets or exceeds original equipment standards.