Duraforce 782PCS NBR90 O-Ring Kit Box for Komatsu Excavators

This 782-piece O-ring kit box is engineered for Komatsu excavator hydraulic system maintenance. The assortment includes NBR 90 durometer nitrile rubber O-rings compatible with Komatsu 07000-1 and 07002-1 series part numbers. The kit provides a wide range of standard metric and inch sizes organized in a durable plastic compartment box for rapid identification and field replacement. Material composition utilizes premium NBR compound rated for -40°C to 120°C operating temperature range, ensuring reliable sealing performance in hydraulic oil, fuel, and coolant media. The kit serves as a direct aftermarket replacement for Komatsu OEM kit 1400688H91 and crosses to industry standard kits 466-KU-90 and 487-KU-90. Designed for use across PC60, PC100, PC120, PC200, PC220, PC300, and PC400 model series hydraulic cylinders, pumps, valves, and fitting connections.