Product Description
The Bendix 800396 TP-5 Tractor Protection Valve is a heavy-duty pneumatic control valve designed to protect a commercial tractor's compressed air supply when trailer air lines become disconnected, damaged, or experience excessive pressure loss. By isolating the trailer service circuit when necessary, this valve helps maintain air pressure within the tractor's braking system and supports safe, dependable operation.
Featuring an integrated trailer service quick-release function, the TP-5 combines multiple air control functions into a single assembly. Its combination of push-to-connect and threaded NPT fittings accommodates the specific air line connections found in compatible tractor-trailer braking systems.
The 800396 is designed for cab or chassis mounting and features a durable housing, protected exhaust port, and multiple control connections. It is an excellent replacement for a damaged, leaking, or malfunctioning tractor protection valve.
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Genuine Bendix TP-5 tractor protection valve
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Manufacturer Part Number: 800396
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Cab or chassis mounting configuration
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Combination push-to-connect (PTC) and NPT connections
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Primary tractor control port: 1/2" PTC
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Secondary tractor control port: 1/2" PTC
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Trailer control port: 3/8" PTC
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Tractor protection port: 3/8" PTC
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Stop light switch port: 1/4" PTC
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Trailer supply port: 1/2"-14 NPT
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Trailer service port: 1/2"-14 NPT
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Integrated trailer service quick-release function
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Maximum service-line opening pressure: 50 PSI
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Minimum service-line shutoff pressure: 10 PSI
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Exhaust port with protective dust shield
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Four mounting holes, approximately 0.34" diameter
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Operating temperature range: -40°F to 200°F
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Designed for heavy-duty commercial tractor air brake systems
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New replacement valve
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Sold individually
The TP-5 helps prevent a trailer service line failure from exhausting the tractor's compressed air supply. Its integrated design also reduces the number of separate pneumatic components required in compatible air brake configurations.
Cross-reference numbers include Bendix 800396BXW, Automann 170800396, and Standard Motor Products AL150.
Before ordering, verify the existing valve part number, mounting arrangement, port sizes, and air line connections. Bendix TP-5 valves are available in several configurations and are not universally interchangeable.
