MAHLE 3021190B Steel Napier Piston Ring Set Bore - THM-13 4.605 1.0mm

The MAHLE 3021190B is a precision-engineered steel piston ring set designed for high-performance engine applications. This Napier THM-13 configuration ring set features a 4.605-inch bore diameter with a 1.0mm ring width and 0.136-inch radial wall thickness, making it ideal for racing and heavy-duty engine builds requiring superior sealing and durability.

Key Specifications:

• Bore Diameter: 4.605 inches
• Ring Width: 1.0mm
• Radial Wall (RW): 0.136 inches
• Material: Steel construction for enhanced durability
• Configuration: Napier THM-13 design
• Style: Plain ring set

Features and Benefits:

• Steel construction provides exceptional wear resistance and thermal stability
• Napier THM-13 design optimizes oil control and compression sealing
• Precision-ground surfaces ensure consistent ring-to-cylinder wall contact
• Low-tension design reduces friction for improved horsepower and fuel efficiency
• Engineered to MAHLE's exacting OE and motorsports specifications

MAHLE piston rings are trusted by professional engine builders and performance enthusiasts worldwide for their quality, precision, and reliability in demanding applications. This ring set is manufactured to strict tolerances to ensure proper fit, optimal sealing, and extended engine life.