Upper & Lower Full Gasket For Cummins Engine 3.9L 4B 4BT 4BTA 3804896 3802375 US. Please check our photos, and make sure our product is same with your old one. Anything else not mentioned is not included, besides pictures shown. For Cummins 4BT3.9 4B Engine Upper Cylinder Head Gasket Set 3804896. 1× Full Gasket Set As The Pictures Shown. We will do our best to solve the problem. We promise to provide you the high quality goods and best serves. If you recognize our services and product quality, please give us a good review.