I don't know the year model of this tractor, serial # is gone. I would say an early model since someone has replaced the can filter with a spin on adapter. Oil pump on tractor now is EAF-6604-A., which is a gear pump. Every pump I find online for the diesel is DINL6600A which I think is the gerotor style pump. I know this pump will fit but I think I will have to change the pickup tube and pressure line to block. Is that correct? Also, where do I find these parts, a salvage yard, or is there somewhere else to find them. I am changing pump because I have no pressure showing on gauge and, yes, I have tried another gauge. I have no damage on engine, yet, and would like to keep it that way. Thanks for all replies.