Please Note : Communication is the best way to solve problems. We will give you a satisfying solution. Feature: High-quality material, good corrosion protection and best durability. Easy to install, direct fits. Compared with other similar products, our DEF Pump has higher performance. Fitment: For Cummins 5506956, 4388105 DEF Doser Pump. 5506956 DEF Doser Urea Pump Assembly For Cummins Diesel Engine 5506956RX 4388105. Package included: 1 DEF Doser Pump. A052Y, A06X234, 2115624, 2115624PE, 5506956. 2208766, 5506956RX, 2208766PE, 4388105, 5506956CUM. For Cummins 5506956 4388105 DEF Doser Pump. (except weekends & official holidays). We work from Monday – Saturday 8:30AM – 5:30PM, but we will reply once we get your message. We will try our best to resolve any kind of issue.