The New Holland 81682C1NO is a genuine OEM ring gear, also cross-referenced as 81682C1 and 3146674R1. This critical component features a Z:51/90 tooth configuration, ensuring precise power transmission. It is designed for various Case IH, Ford, and New Holland backhoe loader models, including the New Holland 555, 555A, 555B, 555C, 555D, 555E, 655, 655A, 655B, 655C, 655D, 655E, 755A, 755B series, and Case IH 2400A, 2400B, 2500A, 2500B models. This high-quality ring gear ensures reliable performance and durability in demanding agricultural and construction applications.