MAHLE 3030848B Performance Oil Ring Assembly Bore NHRA Pro Stock - 4.710in 2.0mm

The MAHLE 3030848B is a performance oil ring assembly engineered specifically for NHRA Pro Stock racing applications. This standalone oil ring assembly features a 4.710-inch bore diameter, 2.0mm ring width, and a .129-inch rail width, constructed from gas nitrided stainless steel (GNS) for superior wear resistance and durability under the extreme demands of professional drag racing.

Key Features:

• Bore Size: 4.710 inches
• Ring Width: 2.0mm
• Rail Width: .129 inches
• Material: Gas nitrided stainless steel (GNS)
• Plain (non-file-fit) design for direct installation
• Three-piece oil ring assembly design with top rail, bottom rail, and expander
• Designed and validated for NHRA Pro Stock competition
• Engineered to minimize friction and maximize oil control at extreme RPM

MAHLE Performance oil ring assemblies are trusted by professional race engineers worldwide. MAHLE's CP-20 design philosophy and gas nitrided stainless steel construction deliver extended fatigue resistance, increased cycle life, and consistent oil control under the high operating RPMs, elevated compression ratios, and extreme temperatures characteristic of Pro Stock engines. This is a performance oil ring assembly only — not a complete piston ring set.