MAHLE 41788.020 Premium Engine Piston Ring Set - 0.020 in. Oversize

The MAHLE 41788.020 is a premium-grade engine piston ring set manufactured to OE form, fit, and function specifications. This set is sized at 0.020 in. oversize, designed for use during engine rebuilds where cylinders have been bored 0.020 in. over standard. It is built to the same exacting standards MAHLE supplies to original equipment manufacturers worldwide.

Key Features:

• Bore Diameter: 3.5512 in.
• Top Ring: Carbon steel construction with Plasma-Moly face coating for reduced friction and superior wear resistance
• Second Ring (Napier): Carbon steel, 0.0587 in. axial height — shallow groove design for superior oil control and combustion gas management
• Oil Ring Assembly: Stainless steel, 0.1181 in. axial height — CP-20 design with exclusive 20-degree ear angle for optimal side seal in the piston oil ring groove
• Top Ring Axial Height: 0.0586 in.
• Item Grade: Premium
• Oversize: 0.020 in.

MAHLE Ring Technology:

• SAE 9254 high-alloy steel base material delivers higher tensile and yield strength, extended fatigue resistance, and increased material hardness
• Plasma-Moly face coating minimizes friction and promotes fast ring seating
• CP-20 oil ring design simplifies installation and provides best-in-class oil control
• Engineered to reduce oil consumption and extend engine service life

MAHLE is one of the largest OE piston ring manufacturers in the world, and this ring set reflects the same technology used in original equipment applications. It is the ideal choice for engine rebuilders seeking a premium, reliable replacement ring set.