Part Name: Complete Crankshaft Assembly. Part Numbers: 3905619 3908032. Engine Model: 6BT5.9. For Cummins 6BT5.9 Diesel Engine. 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. Please make sure it will fit your machine before purchasing it. If you are not sure this is what you need please find out your engine model series number and contact our Customer-service. Due to the wide variety of accessories for the 6BT5.9 Engine Parts we do not have all the accessories on our store shelves. All the accessories for this model are provided in this store. If you need anything else you can contact our customer service. 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.