OE 21896942 Piston Ring Kit For Mack Heavy Duty Truck

This OE replacement piston ring kit, part number 21896942, is precisely manufactured for Mack heavy-duty truck engines. Adopting advanced surface treatment technology, it delivers superior wear resistance, heat resistance and sealing performance, effectively preventing gas blow-by and oil consumption. It strictly follows original dimensional standards for perfect fit and easy assembly, an essential overhaul spare part to restore engine power and keep stable running under heavy-load working conditions.