Will Replacing O-Rings Stop TMPS Sensor From Leaking Air?

Question

Question:

I have the system with the 507 cap/sensors. One is leaking air. Will the Replacement O-Rings for TST 507 Series TPMS Sensors for RVs kit. Correct the problem?

asked by: Gary F

0

Expert Reply:

Hello Gary, thanks for reaching out. It is rare, but I have heard of the O-rings giving out and causing the sensors to leak. If this is the case with your sensors, then yes, the Replacement O-Rings # TST84FR are exactly what you need to fix the issue.

Was the bad sensor on your trailer? Or do you use them on your truck?

expert reply by: Jesse M

0

Jesse M.

9/2/2025

Hey Gary, did the Replacement O-Rings solve the leaking issue with your sensor? I'm asking because your experience could help others facing similar problems.

Reply

Answer 1

I have another option for you. As you may know, the TXT 507 systems come with valve-cap style sensors. There are not any non-TST valve stem sensors, however there is something better. The TST #TST-507-INT-S1 sensors install inside the wheel. There…

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Answer 2

Yes, the batteries on the TST TPMS for RVs - Color Display - Signal Booster - 4 Flow Through Tire Sensors Item #TST-507-FT-4-C can be replaced with a CR1632 battery. You do not need to be moving for the sensors to be working, but the flow through…

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Answer 3

To replace the batteries of the TPMS Cap sensors included with the TST TPMS for RVs - Color Display - Signal Booster - 6 Tire Sensors #TST-507-RV-6-C you will need to use the included wrench to turn the nut on the sensor counter clockwise. That will…

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Answer 4

We do not carry any lug nuts with a rubber gasket and I personally would not recommend using any rubber gaskets for lug nuts. The hubs on your 2018 Jayco North Point will generate a lot of heat from the brakes. This would cause the rubber to become…

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Answer 5

For your TST TPMS for RVs #TST-507-RV-6-C you'll need the part #TST84FR to replace your factory O-rings.

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Answer 6

Hey Adam, we have the replacement SE2 cap sensor part #TST47FR that will work with what you have and is pretty small so it wouldn't stick out far enough to cause you any issues or problems with curbs. These are sold individually too so you…

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Answer 7

The monitor for the TireMinder i10 TPMS #TM29FR does need to be plugged in. It comes with a power cord that you can either plug into to a USB outlet or you can use the included adapter to plug into a 12v cigarette outlet.

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Will Replacing O-Rings Stop TMPS Sensor From Leaking Air?

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