There are several online websites that sell replacement parts for the JOHN DEERe 3020. You can also check at local tractor stores for parts.
The operating weight of the John Deere 3020 is around 7695 to 9585 pounds. A John Deere 3020 can be purchased from many retailers including TractorHouse.
a john deere 3020 can hole 29ish gallons for a diesel engine. go to www.tractordata.com and search john deere 3020. it will give you all sorts of info.
If it is a serious problem with the engine it is always wise to take it to a preofessional. If the problem looks to be within your skill level, you can find extra parts for the 3020 online at www.tractorpartsasap.com.
Looks like the going rate for a Model 3020 is about $8000.
TractorHouse.com has several 1970 John Deere 3020 tractors for sale on their site. Wherever you buy, be sure to examine the tractor first, if you are depending on it being in working condiiton. On the tractor fan site chatstractors.com they are advertising a completely restored 1965 JD 3020 tractror for a reasonable price. To see the specific ad check out: http://www.chatstractors.com/1412-restored-john-deere-3020-diesel.htm.
John Deere's website offers tractor parts. You can find them at their website: http://www.deere.com/en_US/homeowners/parts/index.html
You can use some generic parts on it, but in general it's best to stick with the brand name parts. You can find them for the John Deere 990 at http://www.greenfarmparts.com/John_Deere_Model_990_Tractor_Parts_s/274.htm
Www.johndeere.com is a good place to look. They sell replacement parts for all kinds of John Deere vehicles and equipment. The best place to buy parts for your John Deere tractor is through your local dealer or https://jdparts.deere.com/ which is their website. www.keepingitgreen.com and www.tractorhouse.com also sell John Deere parts.
No, of course not, just like many automobile manufacturers John Deere allows companies to make aftermarket parts for their equipment. Companies like A&I and SMA offer comparable parts at marked down prices. You can also go to junk yards and get parts from salvage equipment. The best way to insure a good fit is to get a John Deere replacement part, but you can always fix it close to new with aftermarket or used.
A John Deere 3020 takes 9 quarts of oil in its engine. See related link for more information...
There are specific store that carry that paticular brand John Deere. You can try searching online for a replacement or in the phonebook to try and find the tire.
John Deere makes good lawn mower replacement parts. I would probably go with John Deere or Honda spark plugs, if I had to make a decision on what brand to get.