MV3 Air Brake Control Valve: Designed for heavy-duty air brake systems, featuring 1/4" NPT ports and 0.28" delivery size, ideal for truck and trailer dash-mounted valve control applications. NPT Threading & Port Specs: Includes 1/4" NPT supply and delivery ports with a precise 0.28" configuration; optimized for MV3-type dashboard valve replacements. Rugged Construction: Built for durability and consistent performance in demanding environments; engineered to meet or exceed OE specifications. Universal Fitment: Suitable for a wide range of commercial trucks, including Freightliner, Volvo, Mack, and Navistar with direct OE replacement compatibility. Complete Package: Includes one MV3 dash control valve assembly, ready for direct installation using standard air brake line fittings.