Product Details: The PAI Pump Primer Hand with Gasket is designed to withstand even the harshest conditions. Its cast iron construction ensures extreme durability, while its internal thermal overload protection prevents overheating of the pump. This pump is specifically designed for Caterpillar engine applications. Thanks to its dependable performance and durable build, this engine is the ideal option for anyone in need of a reliable choice. FleetPride is your First Click in Heavy Duty®.