Engines & Engine Parts. Exterior Parts & Accessories. Ignition Systems & Components. Heavy Equipment Parts & Access. New Turbocharger 4936511 Compatible with Cummins QSB4.5L Diesel Engine. Turbocharger 4936511 for Cummins Engine 6B. Please make sure that the part number matches the old part. If you are not sure, please send me a message. I will have my technical team give you professional help. Roblems happen, we’re committed to offer you 100. Ction and solve the problem with you. We have several warehouses in the United States. Not less than 30 days. We greatly appreciate your. Please do NOT leave negative or neutral feedback without any contact. It’s very important to us, Thanks a lot!