Hi and Welcome!
Congrats on your new Sunny!
I looked in the year 2000 Sunline brochure and they stated, they used 14" tires on the T-1950 through the T-2475. Your T-2053 would fall into that group of the 5,500# GVWR class campers. See PDF page 4, on the lower left corners under "Exterior" See this link when logged in to download the year 2000 brochure.
https://www.sunlineclub.com/forums/d...o=file&id=5509
You want ST type high speed radial trailer tires. They would be 5 lug wheels on a 4 1/2" bolt pattern.
The full tire size would then be, ST205/75R14 Load range C. It would be great if another member with a year 2000 camper in the 5,500# class GVWR could confirm that size. I am fairly sure that is the whole size but a double check helps.
As FYI for others reading this, I do not know what model year Sunline changed from 14" tires to 15"tires on the 5,500# class GVWR campers. It would be after year 2000 at least. I know for a fact they changed "by" 2004 as I have them on 2 of my 5,500# class project campers. They would be ST205/75R15's load range C, with a 5 lug on 4 1/2" bolt. At this point, the year 2001 to 2003 is unknown.
Since you are towing this for "states" away, I'll pass this along to help you not have a bad day towing on your first trip. This is just extra info incase you did not know. I have towed 7 used Sunlines states away back to my place, and tires are always a concern. One of them had 13 year tires on it. The originals from Sunline. I knew it going in and I brought new wheels and tires with me and changed them before heading out. The others I had a plan to bring new ones mounted or made sure the tires on the camper where new enough I did not have to worry about a tire failure on the way.
See if you can get the owner to check for the 4 digit date code on the side of the tire and give it to you. And the 4 digit code could be on the inside of the tire if they cannot find it on the outside. Ideal is to check all 4 tires. And they can confirm back to you the size is ST205/75R14 load range C . Have them send a pic of the code if it makes it easier for them.
If you or they do not know how to read the date code, see here for 2 writeups on the codes. On trailers, the 4 digit code might be in a small stamp by itself after all the other DOT codes, or part of the long DOT code.
https://www.tirerack.com/tires/tiret....jsp?techid=11
https://www.tirerack.com/tires/tiret....jsp?techid=11
Point being, if the tires are much over 5 years old, seriously consider getting new tires before heading out on a trip that long. Just because the tread looks great does not mean the tire is good enough to survive a trip that long. Cracks in-between the treads and sidewalls are a giveaway too that the tires have aged too far.
Heating old tires up on a long tow, brings out the worst in them.
If you have it these items at home, consider adding them to your camper pick up kit.
A portable air tank/portable compressor. tire inflator etc. with hose, tire chuck & gauge. Make sure all tires are at max cold tire sidewall pressure. which on C load range is 50 psi. If you have no compressor etc. search out a gas station close by you can get the truck and camper into and bring your own tire gage.
Something to chock the wheels with, a bottle jack and blocks to reach the camper frame, 13/16" socket, extension, breaker bar, ratchet and 1/2" drive torque wrench. The lug nuts are 100 ft lb. These trailer wheels need 3 times torque re-checks once a wheel is changed. 1st time around 20 to 30 miles (most important). 2nd another 50 to 60 miles, then another 70 -100 miles. They normally stop taking torque on the 3 set but if not, then do a 4th set.
A roll of gorilla tape. Believe me, it comes in handy on cracked roof vents or fridge vents or anything else that needs a Band-Aid to get you home.
If you have an assortment of other basic hand tools and a volt meter, it helps.
Good luck on your trip, and this is the place for Sunline info, read on and just ask when you need help.
Hope this helps
John
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