I had a similar question several years ago and used the following advice from ras. I have been very happy with these tires and plan to replace them with the same item soon. Tirerack will ship them to you for local mounting which saves a lot of running around looking and hassle.

John

On Jul 22, 8:24 am, RN wrote:
The tires on my Cobra trailer from the factory are marked
185R14C8PF (102/100N)LT

They appear to be GT Radial Max Miler X
Load Range D 1875 lb at 450KPA 65# cold

Try tirerack.com - they have Kumho trailer tires that match what you
have. I've used their semi trailer tires and found them to be
acceptable, but I don't have any experience with the smaller ones.
They list them for $ 80.00 each plus shipping.

Ray Warshaw
1LK