WHAT IS REMANUFACTURED PUMP? Our remanufactured OEM parts are genuine OEM products that have been expertly rebuilt using the best aftermarket parts available and state-of-the-art machinery. Our team of highly trained technicians uses the latest technology to ensure that our reconditioned injectors and pumps perform just as well as brand new ones. You can trust in the quality of our products to provide the same level of performance you would expect from a new part. Our top-quality Fuel Pump is designed to be fully compatible with Cummins 4BT 3.9L Diesel engine. The pump has been thoroughly tested on top-of-the-line test benches to ensure that it meets the highest standards of quality and performance. We understand that time is of the essence when it comes to Fuel Injection Pump, which is why we guarantee to dispatch your order within one day of receiving it.