TST 507 Series Tire Monitor Compatible Cap Sensors
Updated 05/27/2026 | Published 05/18/2026
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Question:
Looking at TST tire sensors TST-507-RV-S4 currently have TST display and internal sensors TST-507-INT-04 - bought 09-2022 - getting new tires and want to know if these cap sensors will work with the old display unit. Thank you.
asked by: Paula T
Expert Reply:
You got it Paula, great question!
Yes, the Brass Tire Cap Sensors # TST-507-RV-S4 will work with your existing TST 507 display. The 507 series monitors are designed to be compatible with the different 507 series sensor styles.
A 2022, 507 display is the newer compatible version so it should pair the new cap sensors directly to your existing monitor without needing a new display.
What are you installing the tire monitors on; motorhome, fifth wheel or trailer?
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Internal Tire Sensor for TST TPMS Systems - Qty 1
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- TPMS Sensor
- Tire Pressure Monitor Parts
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Paula T.
5/20/2026
Thank you for the answer! We currently have the internal sensors on our Airstream 27FB trailer, installed when we bought new tires about 4-5 yers ago, and they've worked fine. However, since we're replacing the tires soon, we would either install new internal sensors - better security if theft is a concern - (but would have to buy 4 new sensors since can't replace just the battery) or go to the caps (which have replaceable batteries). So we're going to try out the caps since you've confirmed our current display will work with them.