MAHLE 3021336 Performance Piston Ring Set Bore Steel Napier Ring - 3.5039 2nd

The MAHLE 3021336 is a premium performance piston ring set designed for precision engine builds requiring a 3.5039-inch bore diameter. This specialized ring set features a steel Napier-style second compression ring, engineered to provide superior oil control and combustion sealing in high-performance applications.

Key Specifications:

• Bore diameter: 3.5039 inches (89.00mm)
• Ring width: 1.2mm (0.047 inches)
• Radial wall thickness: 0.135 inches
• Plain ring design for smooth cylinder wall interaction
• Steel Napier second ring configuration for enhanced oil control

MAHLE piston rings are manufactured to OEM specifications and beyond, utilizing advanced materials and coatings to reduce friction, improve sealing, and extend engine life. The Napier ring design features a hook-shaped profile that provides excellent oil scraping characteristics while maintaining optimal tension against the cylinder wall. This ring set is ideal for performance engine rebuilds, racing applications, and custom engine builds where precise tolerances and reliable performance are critical.