Should Trailer Tire Be Inflated To Max Pressure?

Updated 04/09/2021 | Published 04/07/2021

Products Featured in This Question

Loadstar ST175/80D13 Bias Trailer Tire - Load Range D

(3877)

$92.28

Americana Metal, Bolt-In Valve Stem - 1-1/4" Long

(617)

$21.95

Question:

I upgraded my tires on my travel trailer 7000 pound, duel axles 4400lbs each . 225 75 15 ds were on it and I changed them to 225 75 15 E s Carlisle trail HD do I need to run the 65 pounds as marked on the camper trailer or 80 pounds on the side of the tire

asked by: Richard

Helpful Expert Reply:

With the exception of the Goodyear Endurance line of trailer tires, you should always air trailer tires up to the Pressure stamped on the sidewall of the tire as that is what the tire was designed to be run at.

Since trailer tires have a different sidewall construction than a standard vehicle tire and under inflating them will cause the excess heat in the tire which leads to premature wear and possible tire failure.

You will want to make sure the valve stems installed are rated high enough to use the recommend air pressure, as most standard rubber valve stems are only rated to 65 PSI.

If you need higher rated valve stems I recommend taking a look at the Americana Metal, Bolt-In Valve Stem - 1-1/4" Long # AM20906 which is rated for over 100 PSI.

expert reply by: Samuel C