Precision-engineered D2 Governor for high-temp applications; 5" body length and standard 0.125" NPT threaded ports ensure seamless fitment in heavy-duty air brake systems Equipped with 3 reservoir and 3 unloader ports, all 0.125" diameter, ideal for maintaining consistent air pressure in high-demand braking systems Supports pressure regulation in the 100–120 PSI operating range; rugged design helps withstand demanding environments and elevated temperatures Includes 1 D2 governor unit compatible with numerous OE and aftermarket systems; built for long-lasting performance and reliability in commercial trucks and buses Replaces over 50 part numbers including Bendix 284358, 109662N, Haldex KN18534, Automann 170.284358, PAI 5658, and more; see below for full list