Features: 1.Application: Diesel heater fuel metering pump is specially designed for Eberspacher Airtronic D2 D4 12V, suitable for replacing the old or damaged metering pump. 2.Part Number: OE number of fuel metering pump are 22451901, 22451910000, 28451901, 2451910000. Please double check the part number of your item before ordering. 3.Function: The parking heater fuel pump supplies fuel to the machine by pulse, and pumps the fuel into the combustion chamber to keep the machine burning. 4.Advantages: Through high accuracy processing, the fuel pump is characterized low noise, long service life, waterproof, automatic pressure relief, oil saving, etc. 5.Easy to Clean and Observe: The fuel pump has a removable design, with a transparent cover to observe the internal conditions, and dual filtration provides more efficient filtration. Specification: Item Type: Heater Fuel Metering Pump Material: Copper + ABS + metal alloy OE: 22451901, 22451910000, 28451901, 2451910000 Working Voltage: 12V Power: 1KW-5KW Port: 2PINS Function: The modified parking heater fuel pump has a removable cleaning design. The quiet working belt with a transparent cover can observe the internal conditions. The dual filtering provides a more efficient filtering effect. It is very suitable for replacing the old or damaged metering pump Application: For Eberspacher Airtronic D2 D4 12V Note: 1. Please double check the part number of your item, matching information is for reference only. 2. If you are unsure of the item, please contact us before buying to avoid unnecessary return, thanks! 3. Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.