Description
Piston rings are critical to engine sealing and compression—worn or substandard rings lead to blow-by, oil consumption, and power loss. The Hastings 2M5721 delivers OEM-quality construction with proven ring designs that maintain proper bore contact across the entire rev range. Whether you’re rebuilding a street engine or refreshing a race platform, these rings ensure consistent performance and longevity.
Technical specifications:
- Cast or moly top ring
- Reverse torsional taper second ring
- Three-piece oil rings
- Spiral-on installation
- MPN: 2M5721
- Manufacturer: Hastings
