Upgrading to H Rated Sailun Tires on 16" Rims: Is It Safe or Worthwhile?

[JON SUSN]

I have a 2017 3661rl Montana. Replacing the current Sailun 235/80/R16 G rated 14 ply at 110 psi max air pressure with the Sailun 235/80/R16 H rated 16 ply at 120 psi max air pressure. The rims on my rig are stamped 110 on inside of rim. Should I worry about using the H rated Sailun or find some G rated Sailun to put on. Thanks in advance

 

[LeftOverParts]

If you get the H rated, 4190 lbs capacity per tire (or even stick with the G rated, 4080 lbs) you may not need to run them at max tire pressure if your trailer isn’t running at max weight.

Here’s a recent discussion on tire pressure. The chart in post 11 doesn’t have the pressures for H rated but you can get an idea. (We run ours 100-105 psi.)

Tire Pressure for G Load Rated Tires

Our 2018 3721RL, it came with G loadvrated Sailuns. Lot of negative posts about Sailuns, but I got five good years out of them. In 2023, they were still looking good but based on the five year rule I replaced them. Now with less than three years and low mileage usage, I recently threw a cap...

www.montanaowners.com

 

[JON SUSN]

Thanks for the feedback. Just ordered the H rated Sailun from Walmart online for 208 per tire

 

[scottz]

Next time I buy tires, I will replace my G rated with H rated and run them at 110. Can't see a down side.

 

[Bodet]

I have a 2017 3661rl Montana. Replacing the current Sailun 235/80/R16 G rated 14 ply at 110 psi max air pressure with the Sailun 235/80/R16 H rated 16 ply at 120 psi max air pressure. The rims on my rig are stamped 110 on inside of rim. Should I worry about using the H rated Sailun or find some G rated Sailun to put on. Thanks in advance

I just ordered the Sailun 235/80/R16 G rated tires from Wal Mart and they emsent the 235/85/16 H rated 16 ply tires. Based on forum feedback I ran 90lbs and just completed a 1,600 mile trip with no problems

 

[ChuckS]

I currently have the Sailun S637 14 ply and run them at 95 psi... When I need to replace I will buy the H rated and still run at 95 psi... You are picking up two extra layers of ply and I would imagine the sidewalls on the H rated are a bit stiffer then the G rated... No need to run at 110 or 120 psi....

 

[JON SUSN]

Next time I buy tires, I will replace my G rated with H rated and run them at 110. Can't see a down side.

Thanks for the feedback

 

[20TwoAdv]

We are in process of switching from the 235/80r16 G, to the 235/75r17.5 H Sailun 637’s on our 3531RE. Should have them on next week. First trip will be in a few weeks. Time will tell if this is a good move or not. Plan to run at 100 psi with 3400lbs per tire.
Will have a set of 16” wheels and Sailun tires for sale if anyone wants them (North Texas area). Tires are date coded 2923 and have about 1000 miles on them. Very good condition. RV parked inside so no sun/UV rot.

 

[nickens]

I put the H-rated on my 2022 MHC 295. The rims are rated for 4180, I didn't see a stamp for max pressure - close enough. Have 8000 miles so far, usually run cold 115 PSI

 

[20TwoAdv]

We just upgraded our ‘24 3531 to 17.5” H Sailun tires from the OEM16” G Sailuns. Two reasons for doing so is that Montana changed to the 17.5 H rated on the ‘25 model and newer. After weighing, I felt like the gvwr was to close to the capacity rating of the 16” G’s. Montana must have agreed. Difference in 16” H and 17.5 H is the 16 is a ST trailer tire and the 17.5 is a true truck tire with improved sidewalls and weight capacity. The 17.5 is a more stable tire on the road. Went from 3800# capacity to 6000# capacity, or from about 90% loaded rate vs about 58% loaded weight. More stable and runs cooler. Most of our travel in TX and surrounding states with very high summer road temps.

This is a part of an overall suspension upgrade for us. Not for everyone, but made sense for us.

 

[St. Michael]

Curious, the rims, what kind are they, where’d you get them and how much were they?

 

[20TwoAdv]

Bought the wheels from etrailer, Phoenix for $291 each. Sailun 637 235/75r17.5 H from Walmart for $196. Wheels can use 1/2” or 9/16” lugs.

 

[20TwoAdv]

Bought the wheels from etrailer, Phoenix for $291 each. Sailun 637 235/75r17.5 H from Walmart for $196. Wheels can use 1/2” or 9/16” lugs.

After re-verifying with e-trailer, it does state online that these wheels will work with1/2 studs, they recommend not using on 1/2 but to only use on 9/16. We’ll eventually upgrade to disc brakes but for now, replaced the 1/2 drums to 9/16. So depending on what you have, may need drums and acorn nuts too.

 

[St. Michael]

Again just curious, why not just go with the H rated 16”? I realize the 17.5” have some lateral advantage but for the price to convert?

 

[20TwoAdv]

Again, works for us and our long-term upgrade plans. If no one wants to buy my 16s, then I’ll put them on one of the farm trailers. They only have about 1000 miles and two years old. I’ve got 16s, 17s, 17.5’s, 18s and #42 spindles all over the ranch. Takeoffs won’t go to waste for me.