The John Deere L78721 Gear is an authentic OEM component designed for various John Deere agricultural tractors. This genuine John Deere gear ensures precise fit and optimal performance in critical power transmission systems, maintaining the integrity and efficiency of your machinery. It is compatible with models including the 4050, 4250, 4450, 4650, 4850, 4055, 4255, 4455, 4555, 4755, 4955, 4560, 4760, 4960, 7000, 7010, 7020, 7030, 7R, 8000, 8010, 8020, 8030, 8R, 8RT, and 8RX series. Engineered to meet original equipment specifications, this gear has a weight of approximately 0.054 kg, a length of 95.25 mm, a width of 50.8 mm, and a height of 50.8 mm.