Product Details: Ensuring you are Ready for the Road Ahead™, the OTR Type F/SS1200 Turbo Cut-Off Valve Kit has everything you need to rebuild the blow-off valve of your turbocharged diesel engine. This turbo valve kit controls the flow of air, successfully safeguarding your turbocharger with the OE specification required to keep your semi truck on the road. FleetPride is your First Click in Heavy Duty®.