I need a upper radiator hose for a 1970 VW Beatle. Where can I locate one?

Either at the engine block located at the end of upper radiator hose. However it could be located in the lower radiator hose like mine was.

The thermostat is located under the thermostat cover, the upper radiator hose is connected there, so remove the hose and the cover to expose the T Stat

Just follow the upper radiator hose to the engine from the radiator, the T-stat is located where the upper hose connects to the engine,, just remove the large nipple the hose connects to, the T-stat is located under that.

First you should drain the antifreez by opening the drain plug located by the lower radiator hose. Then take the upper radiator hose off. Then take the 2 bolts out that hold the housing on. Remove the housng and there is your thermastat. Accordind to VW they want you to put antifreeze on the o-ring I use RTV a little extra help sealing just don't put a lot on. The book says to put thermastat in housing and turn 1/4 turn to right. I'm not sure why but thats what it says. TIP If you close the drain plug now and put as much antifreeze in as you can makes it easyer to get air pockets out later. Mount your therrmostast housing back to block and tighten bolts. Again put as much antifreeze in that you can them put upper radiator hose back on. Again put as much antifreeze in that you can. Now come the hard part sometimes getting all the air out of the cooling system. Put the radiator cap on but loose run the engine till the cooling fan kicks on but keep checking the coolant level. WARNING ANTIFREEZE WILL GET ABOVE 200 DEGREES
both upper and lower radiator hoses should be hot and radiator full. If both hoses aren't hot you have an air pocket that you have to get out. To do this run the engine a couple minutes after the fan kicks on then turn engine off for 5 or 10 minutes and start over keep doing this till both hoses get hot and the air the fan is blowing is hot. Once this is doe yout ready to go. I hose off any antifreeze that got one car so if you see antifreeze under car you know something is leaking and not what was spilled.

If there are no drain locks on the bottom of the radiator, remove lower radiator hose. To create a vacuum, remove radiator cap and upper radiator hose .

Hi:
The thermostat on your car is located under the thermostat housing. This is located on the engine and your upper radiator hose is connected directly to it. If you are wanting to change it, start with a cold engine, and first drain your coolant out of your radiator, then disconnect the radiator hose from the thermostat housing, remove the bolts that attach it to the engine, and carefully remove it. The thermostat can be removed and the new one installed. Remember to scrape off all gasket residue, and install the new thermostat with a new gasket. Reconnect the upper radiator hose, then fill the engine back up with coolant. Start the engine, and let it warm up and check for leaks!

remove upper and lower rad hoses
put garden hose in upper rad hose hole and turn on the water
run it for 10 min then put 50/50 back in

You must remove the bottom rubber hose from the radiator, and also the upper hose. Extract the radiator out or simply flush the radiator in reverse direction of water flow. If the radiator is clogged you can try to clean inside (chemically) or replace it. Flush the cooling system in reverse direction of water flow. Refit all in reverse order and after that purge air out of cooling system.

at the back of the cylinder head gearbox end it sits in the water pipe

Just below the upper radiator hose where it connects to the engine.