Looking for Replacement O-Rings for TST Cap Sensors

Question

Question:

I have tst cap sensors on my truck and fifth wheel. These amount to 8 sensors. I am looking for o ring replacement kits that supply o ring where battery goes and gasket for the valvle stem area. Do you carry kits for both of those items. If so please supply information for ordering. Thanks, Jeff Fowler

asked by: Jeff F

0

Expert Reply:

Hey Jeff, we have a replacement o-ring kit for the TST cap sensors with the part # TST39FR. This would be what you are looking for. Are yours leaking?

expert reply by: Jameson C

0

Jeff F.

5/29/2026

No, but they are getting old and just replacing for maintenance. Thanks for the info.

Jameson C.

6/1/2026

@JeffF glad to help!

Answer 1

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Answer 2

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Answer 7

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Answer 8

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Answer 9

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Answer 10

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Answer 11

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Answer 12

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Looking for Replacement O-Rings for TST Cap Sensors

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