Description
Piston rings are critical to engine efficiency, sealing combustion pressure while managing oil consumption across the entire RPM range. The Hastings 4.000 Piston Ring Set delivers reliable compression and blow-by control with proven moly-faced technology that resists wear in both stock and modified applications. Whether you’re rebuilding a street engine or refreshing a race platform, this file-fit set ensures proper ring dynamics and extends ring life under sustained load.
- Bore Diameter: 4.000″
- Ring Thickness: 1/16 x 1/16 x 3/16″
- Composition: Moly-coated
- Tension: Standard
- Fitment: File fit
- Application: 8-cylinder engines
- Kit Type: Complete set
- Manufacturer: Hastings
- Part Number: 2M5523005






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