Yes, JOHN DEERe can sell used backhoes. It depends on the local dealership, but the only way they can sell a used backhoe is if one of their customer's chooses to trade one in.
There are several websites you can look at to find both new and used John Deere backhoes. You can buy directly from John Deere at their website: http://www.deere.com/wps/dcom/en_US/products/equipment/backhoe_loaders/backhoe_loaders.page Or look for used models here: http://www.machinerytrader.com/
ClevelandBrothers.com advertises that they sell used backhoes including Caterpiller models. IronPlanet.com is an auction site specializing in used construction machinery like backhoes.
You could call around to farms to see if they sell their used backhoes. It would probably be beneficial to buy a new one though, depending on what you plan to do with it.
John Deere calls 2 different items they make and sell a 120. One is a stalk shredder used to shred corn stalks left behind after the corn is picked. It is pulled by a tractor. It can also be a John Deere lawn tractor used to mow yards.Aside from the two items previously mentioned, there's also a John Deere 120 excavator.
You can check at local thrift stores and used home and garden supplies stores. There are also several online websites that sell used backhoes.
John Deere 455 is a model of lawn tractor used for cutting grass. It can be purchased at your local tractor store or you can buy a used one online at places such as Craigslist that people use to sell their used stuff.
This is the oil filter that John Deere uses on all Kawasaki Motors that are used in John Deere equipment.
Www.tractorhouse.com appears to sell used brand name tractors (such as John Deere) online. Also, www.fastline.com appears to buy and sell used farm equipment, including tractors.
There are many places where one could purchase a used John Deere tractor. One of the best places to look for a used John Deere tractor would be on the website eBay.
No John Deere break down all of the time where i work they have John Deere and it seems like they spend more time in the mechanic then being used for work
Oil weight for John Deere 826 snowthrower
You can try to find a John Deere 4230 on ebay to purchase or use the website: www.tractorhouse.com where they sell new and used tractors. You can also use a locator online to find equipment that is being sold near you.