You'd need to let us know which regulator you were talking about.
There are a variety of places that one could find parts for a Kenworth T800. Visiting the Kenworth web home, one can also locate services where one may be able to order the necessary parts for a Kenworth T800. Another place that one could find parts for a Kenworth T800 is at American Trucker.
That depends on the specs. There'll be a big difference between, say, a T800 dump truck with something like a Cummins ISL and 4.33 rears and a T800 road tractor with something like a Cummins ISX and 3.36 rears.
You can find used and new Kenworth t800's for sale online or at a local auction. You can often find good deals at the following website: www.busforsale.com/
According to http://www.kenworthsf.com/virtual-t800.html, the Kenworth t800 is known to be a very versatile worktruck great for pickup/delivery and hauling. Many users claim it has the lowest maintenance cost compared with other work trucks. This website http://car-and-safety.com/service/kenworth-t800-2006.htm also seems to be an excellent site for getting personal feedback from those who've owned the specific model you're inquiring about.
Behind the kick panel on the driver's side.
Behind the kick panel on the driver's side.
~4 lbs. Charge it to that point, and you should be alright.
Need to know model year and engine in order to answer this.
Not without modification.
http://www.soarr.com/search/trucks/Kenworth/T800/ This site lists over two hundred Kenworth t800s that are currently for sale all over the country. They seem to cost between $50,000 and $150,000, but there are some outliers.
Behind the kick panel at the back of the driver's side footwell.
Which regulator and what year? You have a window regulator, voltage regulator, fuel pressure regulator to name a few.