ITEM NAME:10mm Rubber Aluminum Fuel Line Pump Primer Bulb Hand Primer Gas Petrol Pumps 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 . 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: 10mm Length (overall): Approx. 150mm/ 5.91inch Package Includes: 1 Piece Fuel Line Pump Note: The color may have different as the difference display, pls understand. Please allow 1-3mm error due to hand test..Simple and effective tool for priming diesel engines on cars, motorcycles and boats. Input connectors: 10mm. 1 Piece Fuel Line Pump. Material: Rubber And Aluminum. As well as for the transfer of vegetable oil, diesel, it is most commonly used on outboard or inboard boat engines.