800519 MV-3 Dash Air Brake Control Valve Fit for Freightliner Kenworth Peterbilt

MV-3 Dash Air Brake Control Valve for Freightliner, Kenworth, Peterbilt

MV-3 style dash-mounted air brake control valve with push-pull operation, designed to replace part number 800519 for Freightliner, Kenworth, and Peterbilt heavy trucks.

Overview

The MV-3 dash air brake control valve gives drivers fingertip command of parking brakes and trailer air supply from the cab. This MV-3 dash air brake control valve combines tractor protection, parking brake application, and emergency release into one compact module, making it the go-to replacement for worn or leaking original valves on Freightliner, Kenworth, and Peterbilt trucks. Fleet maintenance crews and owner-operators rely on it to restore safe, compliant brake control without rewiring or modifying the dash.

Built For Performance

• Direct aftermarket replacement for MV-3 valves with OE part number 800519
• Push-to-apply, pull-to-release handle with positive detents for park and emergency modes
• Brass body and stainless steel internal plunger for corrosion resistance in humid and road-salt environments
• Pre-threaded 1/4-inch NPT supply and delivery ports for fast, drip-free installation
• Standard dash bezel footprint fits existing cutouts in Freightliner, Kenworth, and Peterbilt cabs
• Maintains steady air pressure to spring brake chambers and trailer supply gladhands

Fits These Machines

• for Freightliner heavy-duty trucks
• for Kenworth heavy-duty trucks
• for Peterbilt heavy-duty trucks

On-The-Job Use

• Long-haul tractor-trailer parking brake and trailer supply control during loading and overnight stops
• Vocational trucks such as dump and cement mixers that cycle parking brakes frequently on job sites
• Freight delivery trucks requiring reliable tractor protection when unhooking trailers at terminals
• Fleet repair bays replacing sticky or leaking dash valves to pass DOT inspections
• Everyday driving where a crisp push-pull valve reduces driver effort and improves safety

Specs At A Glance

Good To Know

Q: Does this MV-3 valve work with Bendix or Haldex systems that used the same part number? A: Yes, it is a direct-fit replacement for Bendix and Haldex MV-3 dash valves bearing number 800519, matching port layout and detent logic.

Q: Are the red and yellow knobs included and are they correct for Freightliner, Kenworth, and Peterbilt cabs? A: The valve arrives with standard push-pull knobs already installed, matching the appearance and function of the original valves in those trucks.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.