The Kenworth T600A, T800, and W900 HVAC Heater Water Shut-Off Valve Actuator is a high-quality product designed for specific vehicles. Made of durable plastic construction material, this actuator ensures a direct replacement and functions like the original equipment part. It has undergone rigorous on-vehicle testing to guarantee a proper fit and optimal performance. With its electrical activation type, this actuator is practical and reliable. It fits most Kenworth T600A, T800, and W900 models from 2005 to 2011. Direct OE replacement numbers include Paccar: 1000192487, 2499082, 870731, and 8707310, Volvo: BSM870731, and Navistar: ZGG717062.