MAHLE 3021344 Performance Piston Ring Set Bore Steel Napier Ring - 4.285 2nd

The MAHLE 3021344 is a high-performance piston ring set engineered for precision engine builds requiring a 4.285-inch bore diameter. This professional-grade ring set features advanced steel Napier-style second rings for superior oil control and sealing performance in demanding applications.

Key Specifications:

• Bore Size: 4.285 inches
• Ring Width: 0.043 inches
• Radial Wall Thickness: 0.135 inches
• Performance steel construction for durability
• Napier-style second ring design for enhanced oil control
• Plain ring configuration

Application & Benefits:

MAHLE performance ring sets are designed for engine rebuilders and performance enthusiasts who demand precision-manufactured components. The steel Napier second ring design provides improved oil scraping and reduced friction compared to standard rings, making this set ideal for high-performance and racing applications. The precise radial wall thickness ensures optimal ring tension and cylinder wall conformity for maximum compression sealing and longevity.

MAHLE's reputation for OEM-quality engineering ensures these rings meet strict tolerances and material specifications for reliable performance in rebuilt and performance engines.