Has anyone been able to find any kind of a cross reference between Yanmar marine engines and Yanmar tractor engines. From what I have found, the tractor engines use different model designations, apparently according the the HP. Part numbers seem to be a different form also. I found what I think is the same HP engine as what I have, and the injector looked exactly the same, but the part # was totally different. The price for a new tractor injector was less than the cost of rebuilding the marine injectors.