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Betts Industries · Air System
19935TS
In stock · ships from Knoxville
This is a 4-inch Teflon-encapsulated silicone (Tef-O-Sil) main seat O-ring for Betts internal air emergency valves.
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Specifically fits Betts 4-inch internal air-operated emergency valves, typically installed on MC/DOT tank trailers for crude, gasoline, and other petroleum products. Not a universal automotive air system part.
Part data verified against 5 catalog sources
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It provides a resilient, chemical-resistant seal on the valve's main seat, preventing product leakage when the valve is closed. Commonly used on crude oil and gasoline tank trailers, this O-ring is replaced when it becomes worn, cut, or if the valve fails to seal properly.
Part Number: 19935TS
O-RING (AIR OP VALVE)
Unit: ea
Dealer: Post Onsite
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Parts commonly needed alongside air system
