NPR Piston Rings

Complete piston ring set for Mitsubishi S6B and S6B2 engines featuring 132.9mm diameter with precision-engineered compression and oil control rings. Manufactured to OEM specifications for optimal engine performance, proper cylinder sealing, and extended engine life. Includes all necessary rings for complete engine overhaul.

Complete EF750 F17D piston ring set featuring 137mm diameter and 4-ring configuration. Direct replacement for HINO engine parts 13011-2710A, 13011-2780, 13011-2990, and 13011-2991. Precision-engineered with compression and oil control rings for optimal engine performance, durability, and reliable sealing in industrial applications.

Factory-direct H06CTA H06C piston ring set with 108mm diameter, featuring precision-engineered compression and oil control rings. Compatible with multiple excavator engine models including 13011-1961, 13011-2450B, 13011-3200A, and 13019-1260A. Ensures optimal engine performance, superior sealing, and extended service life for heavy equipment maintenance.

Premium ISUZU piston ring set featuring 105mm diameter with 3.5mm, 2.5mm, and 4.0mm height configurations. Chromard-coated for superior wear resistance, compatible with 4BB1, 4BE1, 4BD1, 6BB1, 6BD1, 6BF1, and 6BG1 diesel engines. OEM-quality replacement with precise sealing performance.

High-quality Chromard piston ring set designed for Isuzu diesel engines. Features 102mm diameter rings with precise dimensions: 3.0mm and 2.5mm compression rings, plus 5.0mm oil control ring. Ensures optimal engine performance, reduced oil consumption, and extended engine life for compatible models.

High-quality 6D16 engine piston ring kit featuring 118.0mm diameter with multiple thickness options (3.0mm, 2.5mm, 4.0mm). Compatible with Mitsubishi 6D14, 6D15, and multiple Komatsu engine models. Premium components ensure reliable performance and extended engine life for industrial applications.

High-quality NPR piston rings for 6D14 and 6D15 engines featuring Japanese Kawasaki molten copper technology. Available in multiple sizes (110mm diameter with 3.0mm, 2.5mm, 4.0mm thickness). Built for durability in hydraulic breaker applications with comprehensive factory testing and OEM compatibility ME999952.

High-quality piston rings designed specifically for Mitsubishi 6M61 and 6M61CNG engines. Features 118mm diameter with multiple thickness configurations (2.0-4.0mm). These Japanese-made rings provide superior heat transfer from pistons to cylinder walls, ensuring optimal engine cooling and performance in industrial applications.

High-performance 6M70 diesel engine piston ring with 135mm diameter and iron construction. Features aluminum alloy components for strength and corrosion resistance. Two-speed pressure optimization reduces operational cycles. OEM part numbers: ME995857, SDM31115ZZ, ME995855.

Japanese-made 130mm piston ring set for 6D22/6D24 diesel engines. Features high transmission efficiency, reliable performance under heavy loads, and temperature control up to 80°C. Includes multiple ring sizes (3.306×4.5mm, 3.0×5.3mm, 6.0×5.5mm) for optimal sealing and fuel economy in excavator applications.

Premium 4M40 NPR piston rings manufactured in Japan with part numbers SDM31140ZZ and ME202950. These precision-engineered components provide optimal compression and oil control for 4M40 diesel engines, ensuring reliable performance and extended service life. Compatible with various 4M40 engine parts including pistons, overhaul kits, and cylinder liners.