tst 507

[boingram]

...want to install a tst 507 tpms on my fiver and tv...tst says to install on metal valve stems. ..my solitude had rubber ones coming out of the wheel...can I do it?...thx..bo

[RustyJC]

I've had metal valve stems on all of my RV tires since 2004 that required cold inflation pressures higher than 80 PSIG. I have the TST 507 system with the flow-through sensors on the truck (load range E tires with rubber stems) as well as the 5th wheel (load range H tires with metal stems). No problems with either so far. The truck will get metal stems when the OEM tires are replaced.

Rusty

[DannyA]

Rather than going to the trouble of changing my value stems I bought value stem covers, they are hard and slide over your stems for added stiffness.
Worked so far. When I replace the tires I will go with metal stems.

[Denny___Jami]

dave_smith wrote:
When I added TPMS to my previous trailer I went with the flo-thru 507's and can easily see why TST recommended metal stems (which I did). Those sensors are pretty long & I could evision them whipping around in certain situations. However after I peeled one off on a curb & switched to the older "button" style (doesn't stick out past tire) I'd be less concerned. Those are so small & light it doesn't seem like rubber stems would be a problem. YMMV.

Next trailer had metal stems so a non-issue.

They make a short metal stem that will keep the flow through stems inside the rim, I have one tire with a short stem and 3 with the longer ones, today I'm having them all changed to short stems. The short stem will read a little warmer but that seems to be the only difference.

Denny

[invstr55]

The metal valve stems are to better allow the sensor to read tire air temp. Even with the metal stems the tend to read the wheel temp rather than tire air temp.

[MC9]

Because of a flat (detected by the TST in time) I have one metal valve stem. It consistently reads a little different than the rubber stems. (the truck tire dealer didn't have metal when I had the tires changed out)..

[dave_smith1]

When I added TPMS to my previous trailer I went with the flo-thru 507's and can easily see why TST recommended metal stems (which I did). Those sensors are pretty long & I could evision them whipping around in certain situations. However after I peeled one off on a curb & switched to the older "button" style (doesn't stick out past tire) I'd be less concerned. Those are so small & light it doesn't seem like rubber stems would be a problem. YMMV.

Next trailer had metal stems so a non-issue.

[thedoghouse]

kaydeejay wrote:

allen8106 wrote:
I have the TST installed on rubber stems and haven't had any issues. Have had two longs trips, 3000 miles and 2000 miles, no problems.

Then I suggest you have been very lucky and are on borrowed time.
I had one valve stem failure and the rest were showing early signs of cracking.
They were replaced with metal.

X2

[kaydeejay]

allen8106 wrote:
I have the TST installed on rubber stems and haven't had any issues. Have had two longs trips, 3000 miles and 2000 miles, no problems.

Then I suggest you have been very lucky and are on borrowed time.
I had one valve stem failure and the rest were showing early signs of cracking.
They were replaced with metal.

[magic43]

Manufacturers spend the R&D time and $$$ before they offer a product. If I buy the product, then I will read and follow their instructions.

[RCMAN46]

allen8106 wrote:
I have the TST installed on rubber stems and haven't had any issues. Have had two longs trips, 3000 miles and 2000 miles, no problems.

Wait until you get about 10,000 miles and you may have a failure.

Just hope you are not out in the middle of no where such as I am now in NE New Mexico.

Last summer I had a stem fail on my truck. Put the spare on and made it home. The next morning I was going to go to the local tire shop but had anther stem fail overnight and had a flat tire. If I had been out in the middle of no where I would have had an expensive problem.

[allen8106]

I have the TST installed on rubber stems and haven't had any issues. Have had two longs trips, 3000 miles and 2000 miles, no problems.

[Old-Biscuit]

MFG. states NO

[kaydeejay]

boingram wrote:
...want to install a tst 507 tpms on my fiver and tv...tst says to install on metal valve stems. ..my solitude had rubber ones coming out of the wheel...can I do it?...thx..bo

Can you do it?
Unless you have the equipment to break down a tire/wheel assembly to install the valve stem from the inside, this is not a "Do-it-yourself" job.
As someone who had a rubber valve stem fail due to flexing caused by the weight of the sensor I would say do not hesitate to get the metal stems installed.
You will avoid a lot of grief if you do it before the first failure!
In the systems defense though, it did tell me a tire was going down and I had chance to pull off the road before it was flat :B

[dan-nickie]

No