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Hello Steve, thanks for getting in touch. The TST 507 Series 4 Internal Sensor TPMS System Color Display and Repeater SKU TST-507-INT-4-C and our part #TST34FR are one and the same. We simply use our own unique part numbers for these in place of the…

...What are the pros and cons of the TST internal vs flow through sensor in terms of sensor performance, battery life, and reliability...

...The valve stems that come with the Tuson Towable Tire Pressure Monitoring System - 6 Sensors # 335TPMS6WIVS are a little longer than what the standard valve stem length is so you could potentially...

Hey Mark, so the correct Blue Ox base plate kit to use with the Blue Ox Ascent tow bar part #BX4375. is the part #BLU53FR. For lighting you can use #C96JR, and not have to worry about cutting into the taillight housing as this plugs inline with the…

Hey Robert, thanks for reaching out! Since your Sprinter has aluminum wheels it wouldn't be a good idea to use a kit like the TST TPMS #TST34FR that uses the stainless steel bands as that would eventually cause galvanic corrosion. For your…

Hey David, from previous customers of ours who have the same 2020 Keystone Raptor 424 we have determined that your pin box style is the Lippert 1621 which means for a Gen-Y gooseneck adapter you'd want the #GY38FR that you referenced.

...I purchased the TST-507-RV-4 system CAP SENSORS and would like to change to the in tireinch sensors. Can I just purchase the in-tire sensors and everything else will work...

Hi James, If the TPMS use Bluetooth then yes, it will work when out of service area. For example, the TireMinder Smart TPMS for RVs - Signal Booster - 4 Tire Sensors #TPMS-APP-4 will still give you both an audible and visual alert. I have added a…

Hey Eric, I checked with the manufacturer, TST, and the battery is not replaceable on the Internal Tire Sensor for TST TPMS Systems #TST-507-INT-S1. That said, the battery on these lasts four years so it'll be some time before you'll need to…

I recommend using the TireMinder i10 TPMS for RVs and Trailers w/ Signal Booster - 10 Tire Sensors #TM56FR, which comes with 10 sensors and will work well for your Class A and flat towed vehicle to allow you to monitor all of the tires in your setup.…

The typical tire should run about 158 degrees (Farenheidt) once you get going down the road, but this can vary greatly depending on the weight of the trailer, how fast you're traveling, and also driving habits. So while 158 is probably…

Hey Milos, I would go with the ball sensor setup part #TUS37FR over the part #335TPMS4WIVS since it is totally separate from the tires valve stems. So if you were to happen to have a valve stem issue and you had the ball sensor kit you could use…