NPR 10-861-0 Piston Set with Rings Chrysler 5.7L HEMI

The NPR 10-861-0 is a premium-grade piston set designed for 2007-2008 Chrysler, Dodge, and Jeep vehicles equipped with 5.7L HEMI V8 engines. Manufactured by NPR (Nippon Piston Ring), a leading Japanese supplier of engine components since 1973, this complete piston kit includes pistons, piston rings, and wrist pins for a comprehensive engine rebuild solution.

Key Features:

• Standard bore diameter of 99.50mm (3.917 inches)
• Premium aluminum alloy pistons with enhanced durability
• Complete ring set: 1.50mm top ring, 1.50mm second ring, 3.00mm oil control ring
• Includes 8 piston wrist pins for V8 application
• MS (molybdenum steel) coating for superior wear resistance
• Precision-engineered to OEM specifications with 0.030mm clearance recommendation

Quality Construction:

NPR pistons feature ultra-performance grade aluminum alloy construction that minimizes fractures and cracks while reducing engine failure risk. The precision-engineered piston rings utilize advanced steel construction with chrome plating for reduced oil consumption, improved blow-by control, and extended service life. The steel ring design offers superior conformability to cylinder bores and 50% longer service life compared to traditional cast iron rings.

This piston set replaces OEM part numbers 53021538AD and 53021539AD, ensuring direct-fit compatibility with your Chrysler 5.7L HEMI engine. Available in standard size and various oversizes for engine rebuilding applications.