The John Deere E39057 Sector is a genuine OEM part designed for the steering system of various John Deere tractors. This high-quality sector ensures precise and reliable steering control, crucial for efficient operation. It is compatible with John Deere 820, 920, 1020, 1030, 1040, 1120, 1130, 1140, 1630, 1640, 1830, 2020, 2030, 2040, 2120, 2130, 2140, 2250, 2450, 2650, 2850, 3030, 3040, 3050, 3120, 3130, 3140, 3350, 3640, and 3650 Series Tractors. This durable component replaces OEM part number R51797, providing an exact fit and restoring original equipment functionality.