Description:- This fuel primer bulb is perfect for vehicles without ESP-priming, using 1 or 2-tank systems.- As well as for the transfer of vegetable oil, diesel, it is most commonly used on outboard or inboard boat engines.- For introducing fuel into the fuel pump after replacement of the fuel filter.- Simple and effective tool for priming diesel engines on cars, motorcycles and boats.- Connects to any length of hose, easy to use.- One-way only function.- Frequently used as a hand pump in boats for fuel supply to the out-board engine.Specification:- Material: Rubber And Aluminum- Color: Black- Input connectors: 6 mm/8mm/10mm/12mm- Length (overall): Approx. 150mm/ 5.91inchPackage Includes:1 Piece Fuel Line PumpNote:The color may have different as the difference display, pls understand.Please allow 1-3mm error due to hand test.