Compatible with Cummins 5506956, 4388105 DEF Doser Pump. 5506956RX, 2208766,4388105,5506956. 2115624,2115624PE, 2208766PE, 5506956CUM, A052Y, A06X234. Condition: Brand New Coolant Pipe Joint Include: Yes Type: DEF Doser Pump Fitment Type: Direct Replacement Material: Aluminum and plastic. Instructions Exchanging Coolant Connectors. Step 1 : Use a wrench to remove the screws and then remove the coolant connector. Step 2 : Remove the coolant connector from the accessory package and confirm before installation? 15? Is the sealing ring damaged or missing. Step 3: Apply oil to the sealing ring of the coolant connector in the accessory package, install it onto the product, and tighten the screws with a wrench. 1 DEF Doser Pump. (Showing as the picture). Each Product Is Subject To Strict Quality Checking To Ensure Stable Performance, Excellent performance and long service time. Specifcations & easy Installation, direct replacement of old or damaged parts to ensure optimal performance. Product are made of high-quality materials for durability and reliability, suitable for long-term use. Please confirm your vehicle condition and OE number before placing an order! Please note that this is an after-sales part, not an original part. We suggest that you seek professional installation to avoid unnecessary trouble.