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Bendix · Air System
BX802926
In stock · ships from Knoxville
The Bendix TP‑5 tractor protection valve (part number BX802926, also sold as 802926) is a critical air‑brake component that preserves the tractor’s air supply if the trailer breaks away or a large leak occurs.
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Exact vehicle‑by‑vehicle fitment is not published. Verify that the port configuration (1/2" PTC service rear, 3/8" PTC stop light switch, 1/2" PTC trailer control, etc.) and mounting match your air system.
Part data verified against 4 catalog sources
Numbers this part supersedes or interchanges with. Showing 9 of 9.
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It automatically closes the tractor’s emergency and service air lines to the trailer, preventing total loss of brake pressure and keeping the tractor’s brakes functional. This valve is typically replaced when it fails to hold pressure, leaks, or does not properly isolate the trailer circuit during a breakaway test.
Part Number: BX802926
PROTECTION VALVE
Dealer: Post Onsite
Compatibility, alternatives, and more
Parts commonly needed alongside air system
