Clevite 42108CP.030 Plasma-Moly Piston Ring Set Bore Oversize - 3.947 030

The Clevite 42108CP.030 is a premium plasma-moly piston ring set engineered for Chrysler HEMI 5.7L V8 engines with a 3.947 inch bore (+.030" oversize). Made with premium materials such as Carbon Steel, Ductile Iron, and Stainless Steel, this complete ring set delivers superior sealing performance and extended service life for engine rebuilds.

Advanced Ring Technology:

• UCR-Plasma-Moly and OCR-Chrome facing ensures reduced friction and oil consumption
• Upper compression ring: 1.5mm ductile iron with plasma-moly facing (RF-18PF design)
• Lower compression ring: 1.5mm cast iron (RBT-10 design)
• Oil control ring: 4.0mm stainless steel with chrome facing (CP-20 design)
• Pre-lapped to seat immediately, virtually eliminating break-in time

Key Features:

• Bore size: 3.947 inches (+.030" oversize)
• Standard tension design for OE-style applications
• Barrel-faced contact area for more efficient compression and CNC-controlled gap chamfer to optimize compression and reduce blow-by
• Complete set includes rings for 8 cylinders
• OEM cross-reference: 00K68046210AB, 68046210AB, K68046210AB

Driven by OE requirements; reducing friction and ring mass while minimizing engine oil consumption, and providing longer service life. MAHLE/Clevite's advanced piston ring technology meets and exceeds original equipment specifications for reliable performance in demanding applications.