When I bought my 2003 KW W900L, I checked around for a warranty that would cover a truck with 775,00 miles on it, 390 gear, 13 speed trans.
I went with National Truck Protection out of NJ. Total cost was $4100.00. This covers my engine for 2 years, 200,000 (Nothing electrical), but does cover the injectors and turbo for the 1st year. In this it also included the trans and both rear axles for 1 year or 100,000 miles.
After the first year on the engine it does not cover the injectors or turbo. I checked around and even spoke to the CAT People, and they told me they would be around $4600.00 and not cover the turbo, trans, or rear axles. Super nice people at the CAT Place, I faxed him a copy of the info the NTP sent me, and he called me and told me he would go with them.
I did, had trans problem 2 weeks after buying the truck and NTP came through as promised.
They do have a mileage limit 800,000, I think this is correct, and year limit, not sure what that is. I have been very happy with what they did for me.
I wanted a some help in case my truck did break down the first year, and total cost for the trans repair came to $2300.00, so it had already paid for half of the cost.
You do have to take it to one of their approved places for an inspection, and pay for this yourself. I went ot Stowers CAT Dealership in Knoxville TN. NTP sets the amount up what it will be according to what you are getting covered.
Mine was $515.00 if I remember correctly. Extra cost due to fact of checking the trans and rear axles. They did not do an oil sample test, though I had one done. They do put the engine on the dyno and check it out.
I was surprised at how easy the inspection was.
If something is wrong, you have to have it fixed before they will put a warranty on it. Nothing was wrong with mine.
Website is:
http://www.nationaltruckprot.com/
Not trying to sell or endorse this, just giving you info on what I got for a truck with quite a few miles on it.