MAHLE 42126CP.020 Premium Chrome Piston Ring Set 3.460 in. Bore V6

The MAHLE 42126CP.020 is a Premium Chrome Piston Ring Set designed for V6 engines with a 3.460-inch (87.884mm) bore. This set is sold as 6 complete ring sets and features a three-ring configuration with ring thicknesses of 1.2mm (top), 1.5mm (intermediate), and 2.5mm (oil), engineered to restore compression, reduce blow-by, and deliver long-lasting oil control.

Key Features:

• Chrome top ring with a barrel-faced contact area for more efficient compression sealing and reduced blow-by
• CNC-controlled gap chamfer on the top compression ring to optimize combustion sealing
• Intermediate ring with reverse twist design for improved groove side sealing, plus taper race machining for enhanced cylinder wall contact
• CP-20 oil ring assembly featuring an exclusive 20-degree ear angle for maximum side seal against the cylinder wall
• Chemical polish on the oil ring expander for enhanced oil drain-back performance
• Pre-lapped rings that seat immediately, virtually eliminating break-in time after installation
• Ring materials, coatings, and tension are optimized for reduced friction and extended service life
• Bore size: 3.460 in. / 87.884mm — this is a .020 oversize set intended for engines with bored/honed cylinders

MAHLE is the world's largest piston ring manufacturer, supplying both OEM and aftermarket customers globally. The 42126CP.020 Premium Piston Ring Set delivers OE-quality fit and performance, making it an ideal choice for engine rebuilders seeking reliable sealing, minimal break-in, and long-term durability in V6 applications.