Thinking about an upgrade? This short demo helps you evaluate the fit. Watch as we showcase the Premium 1-12121101-N 112121101N Piston Ring, designed specifically for Isuzu NPR commercial vehicles with 4BG1 and 6BG1 engines. You'll see how this genuine Autopartmasters component meets Isuzu's stringent quality standards and learn about its role within the complete engine system.