The John Deere R40978 Impeller is a genuine OEM component designed for efficient fluid transfer within various John Deere agricultural, construction, and industrial equipment. This high-quality impeller ensures reliable performance and is engineered to meet the exact specifications of compatible John Deere machines, including a wide range of tractors, combines, cotton pickers, forage harvesters, and power units. With precise dimensions of 76.2 mm length, 76.2 mm width, and 25.4 mm height, and a weight of 0.091 kg, it provides a perfect fit and long-lasting durability for critical system operations.