Where is hydraulic pump on John Deere 6420?

On a JOHN DEERe 6420, the hydraulic pump is typically located on the front of the engine, often driven by the engine's crankshaft. It is usually mounted on the right side of the engine block. Accessing the hydraulic pump may require removing some covers or components, depending on the specific configuration of the tractor. Always refer to the operator's manual for detailed diagrams and instructions.