Bendix Brakes 065706 TP-3DC Tractor Protection Valve

The Bendix TP-3DC Tractor Protection Valve is a critical air brake system component designed for medium and heavy-duty commercial trucks and tractors. This genuine Bendix valve protects the tractor's air supply in emergency situations such as trailer break-away or severe air system leakage, while also providing controlled air termination when disconnecting trailers.

Key Features:

• Integrated double check valve for enhanced protection
• Cab or chassis mounting configuration with two 0.34-inch mounting holes
• Service line shut-off pressure: 20 ± 5 PSI
• Wide operating temperature range: -40°F to 200°F (-40°C to 93°C)
• Dash-mounted switch controlled for convenient operation
• Vented design for reliable performance

Port Specifications:

• Tractor Control Ports (Primary and Secondary): 3/8-18 NPT
• Stop Light Switch Port: 1/4-18 NPT
• Tractor Protection Port: 1/4-18 NPT
• Auxiliary Supply Port: 1/4-18 NPT
• Trailer Supply Port: 1/2-14 NPT
• Trailer Service Port: 1/2-14 NPT

This valve typically mounts at the rear of the truck cab and works in conjunction with a dash-mounted control switch to manage air supply to the trailer brake system, ensuring both operational safety and system integrity.