Hastings 4923 Piston Ring Kit - 81mm Cylinder Bore

The Hastings 4923 is a precision-engineered piston ring kit designed for engines with an 81mm cylinder bore. Manufactured by Hastings, a company that has specialized exclusively in piston ring production for over 100 years, this ring set delivers the precision fit and durability required for reliable engine performance.

Key Features:

• 81mm (3.189 inch) cylinder bore specification
• Complete piston ring kit for engine rebuilds and overhauls
• Manufactured to OEM specifications for proper sealing and compression
• Made in the USA by Hastings Manufacturing
• Engineered for automotive, truck, or industrial applications

Hastings piston rings are designed to provide optimal compression sealing, oil control, and heat transfer from the piston to the cylinder wall. Each ring set is manufactured using precision tolerances to ensure proper fit and long service life. Whether you're performing a complete engine rebuild or replacing worn rings, the Hastings 4923 delivers the quality and performance that professional mechanics and engine builders have trusted for generations.