NGK Spark Plug - IRIMAC9 (4 Per Box) Thermo this impeller boasts a 6

this impeller boasts a 6 spline design with an overall diameter of 58mm and a shaft diameter of 16mm

Elbow Tails made with brass

allows for easy installation on any flat surface

locks in high speed turns without cavitation (prop blowout) for precise control

these fittings feature S/S grub screw retainers for secure installation

NGK Spark Plug - IRIMAC9 (4 Per Box) Thermo this impeller boasts a 6NGK Spark Plug IRIMAC9 (4 Per Box). NGK have over 80 years of experience in spark plug manufacturing and they are the world leaders in spark plug technology. They have an extensive range of spark plugs, each with their own unique characteristics specifically engineered to its vehicle application and they are designed to suit a broad range of vehicles on Australian roads. With their dedication to quality, outstanding reliability and state of the art