Does anyone know the Ford PN for the F150 FX4 wheels? I want to look up the max air pressure for the wheel. IF I were to put load range 'E' tires on my FX4 wheels, would I be able to inflate them all the way to 80 psi?

 

Why would you want to inflate to 80. There is no need to come even close to that pressure. Loaded to the limit of the trucks GVW, you would never really need to go above 50. Most LR E tires have a max load of 3400lbs per tire at 80. Your GVW is probaly around 7100, so you will never come close to needing the max.

 

just wondering the PN...

 

Every one I have seen has a max of about 50.

 

Higher inflation pressures result in less tire deflection. I will inflate according to load chart as long as it does not exceed what the wheel will handle, for my exact load configuration. Which you are correct, its not likely to require more than 50.

My load range E tires have a max of 3195 and I think that is real common.

I should have mentioned none of that in my original question I see. I dont want to debate weight and loading issues. I have not yet weighed my camper and new truck in the loaded config so I was only wondering the Ford PN for the 2003 FX4 wheels.

 

Is this a towed camper? At 50 those tires would handle right around 2000lbs each.
Check under the center cap of your wheels, it may show max psi there.