This genuine Hitachi 0476718 O-ring is an essential sealing component designed for a wide range of Hitachi EX and ZAXIS series excavators and construction equipment. Manufactured to OEM specifications, it ensures a reliable, leak-free seal in critical hydraulic and fluid systems, maintaining optimal machine performance and preventing costly downtime. With precise dimensions of 20 mm length, 20 mm width, and 2 mm height, and a weight of 0.001 kg, this O-ring provides a perfect fit and long-lasting durability for your Hitachi machinery.