Part Name: Fuel Injector. Part Number: Y431K05248 Y431K05417. Or just tell us the part number you need. 1X Fuel Injector Y431K05248 Y431K05417. For Cummins Diesel Engine QSK19. Please compare its appearance, shape and size with your original unit and make sure that it can fit your machine before ordering. 2: Professional install will be highly recommend Installation instruction not included. Please leave your physical address (home or office address) but do not leave your P. Box address and ensure that your address and contact information are correct. UPS Surepost usually takes 1-6 workdays. UPS Ground usually takes 1-5 workdays. If you don’t receive package over 30 business workdays, please inform us. Duty for International Buyers. We will do our best to offer you satisfied resolutions.