Cosworth blueprints the pump rotor clearances of their oil pumps for maximize efficiency and performance. The oil pump internal passages are deburred to eliminate flow restrictions. Additionally, the pressure relief valve spring is shimmed for additional pressure. Supplied complete with hardware and oil seals for installation. Available in 10mm, 11mm, and 12mm rotor widths allowing you to fine tune the volume output to the specific application.
Usually ships within 2 to 3 days. (11mm pump ia back ordered until Feb.)