NPR American V8 Engine Ring Series Piston Ring Set - 4.075 in Bore - 1.5 x 1.5 x 3.0 mm Thick - Standard Tension - Nitride - 8-Cylinder COM3204 300 in Spring OD

300 in Spring OD

Sold in kit form

Residual Pressure Valves are made from billet aluminum and color coded for easy identification

More positive steering feel

1999-2010 Ford Explorer

NPR American V8 Engine Ring Series Piston Ring Set - 4.075 in Bore - 1.5 x 1.5 x 3.0 mm Thick - Standard Tension - Nitride - 8-Cylinder COM3204 300 in Spring ODProduct Description: Piston Rings American V8 Engine Ring Series 4. 075 in Bore 1. 5 x 1. 5 x 3. 0 mm Thick Standard Tension Steel Nitride 8 Cylinder NPR Piston Rings is a world leader in the production of piston rings. A long time supplier for OEM applications, they also produce a line of performance piston rings designed for top tier performance and reliability. With performance piston rings for a wide range of engines, including popular V8's from