The D2 Air Governor is a critical component for your vehicle's air brake system, featuring a compact yet robust design with a 5-inch height. This precision-engineered governor comes equipped with three 1/8 NPT ports strategically positioned for exhaust, unloader, and reservoir connections. The aluminum construction provides durability while maintaining optimal weight efficiency. The governor helps maintain proper air pressure in your brake system by controlling the air compressor's cut-in and cut-out points. Its standardized 1/8 NPT threading ensures compatibility with most commercial vehicle applications. The unit includes necessary mounting hardware for straightforward installation. This air governor is designed for reliable performance in demanding conditions, making it an essential replacement part for maintaining your vehicle's air brake system safety and functionality.