This OEM Motorcraft IPR Injection Pressure Regulator Valve is a direct replacement for your 03-10 6.0L Powerstroke. It is designed to regulate fuel injector pressure and maintain smooth engine performance. This product is specifically made for diesel fuel type and fits with specific interchange part numbers, such as 5C3Z-9C968-CA and 1846057C1. Please note that this product does not have universal fitment. For California buyers, please be aware that this product may have chemicals that can cause cancer, birth defects, or other reproductive harm.