This is a Remanufactured Bosch fuel pressure regulators for common rail fuel injection pumps. It is remanufactured and tested to the strictest OE standards for optimal performance. 100% visually inspected and quality tested, and is backed by our 100% satisfaction guarantee. These are also known as MPROP's. The symptoms of a faulty MPROP would be rail pressure that is too high or too low.The MPROP will often fail before the pump does, getting stuck and causing the symptoms mentioned above. The...

This is a Remanufactured Bosch fuel pressure regulators for common rail fuel injection pumps. These are also known as MPROP's. The symptoms of a faulty MPROP would be rail pressure that is too high or too low.The MPROP will often fail before the pump does, getting stuck and causing the symptoms mentioned above.