NPR American V8 Engine Ring Series Piston Ring Set - 4.135 in Bore - 1.2 x 1.2 x 3.0 mm Thick - Standard Tension - Nitride - 8-Cylinder MPD17024 Patented reverse piston bleed hole

Patented reverse piston bleed hole vents air from piston area and increases transbrake consistency

093" thick polycarbonate with black-out border

May Require Modification For Roller Rockers

Jeep Wrangler JL / Jeep Gladiator 2018-21

NPR American V8 Engine Ring Series Piston Ring Set - 4.135 in Bore - 1.2 x 1.2 x 3.0 mm Thick - Standard Tension - Nitride - 8-Cylinder MPD17024 Patented reverse piston bleed holeProduct Description: Piston Rings American V8 Engine Ring Series 4. 135 in Bore 1. 2 x 1. 2 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