Hex Autoparts 800257 MV-3 Dash Air Brake Control Valve, Trailer Parking Brake Valves with 3/8 Push to Connect Port, Compatible with Bendix, Freightliner, International for Heavy-duty Commercial Trucks

Core Functions of MV-3 Dash Air Brake Control Valve 1. Controls Tractor Parking Brake Operates the tractor parking (spring) brake through the yellow dash knob. Pull to apply the parking brake and push to release, ensuring vehicle stability during parking and loading. 2. Controls Trailer Parking Brake Manages the trailer parking brake via the red dash knob by controlling air supply to the trailer. Allows independent engagement of trailer brakes when parking or disconnecting. 3. Automatic Safety Protection Under Low Air Pressure Automatically applies the tractor and trailer parking brakes when system air pressure drops below a safe level, preventing vehicle roll-away and enhancing safety compliance. 4. Centralized Air Supply & Distribution Control Regulates and distributes compressed air from the main reservoirs to the tractor spring brake system and trailer supply line for reliable brake operation. Specifications: Materials: Plastic and zinc alloy Ports: 3/8" PTC Mounting: Horizontal Mounting Holes: Unthreaded Installation Location: Dash panel Package Includes: 1 x MV-3 Dash Air Brake Control Valve Fitment: Compatible with Class 8 / Heavy-Duty Commercial Trucks Replace Part Number: Bendix: 800257, 109392, 109935, 5002691, 5002715, 5003681, 5004872, 5005658, 065523 Navistar-International: 2014785C91, 2014785C92, 2014785C93 Automann: 170.800257WF Freightliner: BW800257 Mack: 745-800257 Keene: K065523 Midwest: WA800257 Newstar: S-16929, S16929 Sloan: 401831

• 【Function】The MV-3 dash air brake control valve allows the driver to apply and release both tractor and trailer parking brakes from the dashboard while providing automatic safety protection under low air pressure conditions. This trailer parking brake valve effectively regulates the air supply to the brake system during both normal operation and emergency situations, making it an ideal choice
• 【Vehicle Compatibility】This brake control valve is Compatible with Bendix 800257, 109392, 109935, 5002691, 5002715, 5003681, 5004872, 5005658, 065523; Navistar-International 2014785C91, 2014785C92, 2014785C93; Automann: 170.800257WF; Freightliner: BW800257; Mack: 745-800257; Keene: K065523; Midwest: WA800257; Newstar: S-16929, S16929; Sloan: 401831
• 【Unique Dual Circuit Design】This control brake valve supports a dual-circuit system, allowing independent control of the tractor and trailer brakes, significantly enhancing operability and safety in heavy-duty truck applications. With 3/8" PTC port sizes, it is equipped with 3/8" PTC ports, ensuring a direct replacement for existing systems with no additional modifications required
• 【Easy to Install】This MV-3 dash control valve features a rugged, durable design and easy installation, allowing for quick return to operation and reduced downtime, ultimately improving fleet efficiency. For more product details, please refer to the product description below.
• 【Wonderful Service】Each brake valve is quality-tested to meet or exceed OEM performance standards. Your satisfaction is our highest target. You can buy it with confidence. If there is any problem about this product, we will spare no efforts to cope with it and promise to provide you a satisfactory service