Get your semi Ready for the Road Ahead™ with a safe and reliable means of brake pressure control, with the WABCO SS1200 Plus Governor Kit. Thanks to its ability to open or close as needed, this replacement governor is the ideal option to prevent air pressure in the brake system from reaching dangerous levels. Crafted with a durable body to tolerate extreme pressures and demanding conditions. FleetPride is your First Click in Heavy Duty®.