Simms 4-Cylinder Diesel Fuel Injection Pump P4685 Ford Major Leyland Tractor. Feature: 4-Cylinder inline mechanical fuel injection pump with integrated AC lift pump. Includes mounting flange and splined drive shaft. Color: Natural Cast Iron / Silver Aluminum. Material: Heavy-duty Cast Iron and Steel construction. Condition: New, never used The unit shows signs of age and storage. While the port caps are present, it is an older mechanical component that may require professional calibration or rebuilding before use.