any 15w40 diesel oil is fine.
You need no license to drive a farm tractor as long as you do not drive it on public roads.
Look at the New Holland web site under parts may find what you need. They have good diagrams.
This site will be your best option, http://www.tractorpartsinc.com. You should search ford holland tractor manuals to see if they have what you need. They allow paypal so paying for it should be easy and safe.
You need to specify which application you had in mind. When you say 'tractor', you could be referring to riding mowers, farm tractors, highway tractors, etc. The best highway tractor isn't going to be the best riding mower and vice versa, suffice to say.
The New Holland Boomer can help with all of the tasks you mentioned around the yard. You will need to have the correct attachment on the tractor for the job you want it to do. You can go to the website www.interstatetractor.com and see all that the Boomer is capable of.
First of all, I need to know the kind or model of pump it is, then I can help you.
Any tractor need can be fulfilled by a Kubota Tractor. Kubota Tractors have a large array of tractors they manufacture for any situation that would require a tractor.
Lot of used tractors are available for sale in New Holland; depending upon the brand, year of manufacture, running hours, the Horsepower(HP) and other features of the tractor, prices of tractors vary from heavily. For example, John Deer tractors are quotedat a price ranging from $25,950 to $208,000. You may pl visit the sites that sell tractors and select the tractor that you need: http://www.equipmentlocator.com/ag-fp/used-tractors.htm; http://www.terahub.com/feq/NewHollandTractors.do and more.
Any tire made for Tractors will work fine with the John Deere Tractor. Just be aware of the size of your tractor so you can be aware of what size tires you will need to put on the tractor itself.
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You will need to go see a dealer for that. If they are nice they may print a copy for you OR they will charge you for the entire manual...they prefer to sell the entire manual.
need a wiring diagram for a sears ss16 tractor with onan engine