\u2630 Shop All Categories\n\n--\nMotorsport\n\n--\nKarting\n\n--\nPerformance\n\n--\nMotorcycle\n\n--\nMX/Off Road\n\n--\nTools/Workshop\n\nDemon Tweeks Fuel Pump Hand Primer Bulb - For 8mm Bore Fuel Pipe (Petrol/Diesel)\n\nA hand pump which fits in line in the fuel pipe and can be pumped to prime the fuel pump. When the engine is running the pump allows unrestricted flow of fuel. A one way valve prevents fuel draining back to the tank when the engine is switched off.\n--Ideal for priming fuel pumps\n--Easy to install and use\n--Can also be used for fluid transfer\n--Suitable for petrol or diesel\nThe fuel pump hand primer bulb can also be used for fuel transfer when inserted into a length of pipe. A few pumps of the bulb is all that's required to start a syphon effect\nSuitable for 8mm bore fuel pipe. 20.09.2026, 10:03:10\n\nAbout Us\n\nDelivery\n\nFAQ\n\nReturns\n\nContact Us\n\nDemon Tweeks was established in 1971 to service the needs of the\nmotorsport competitor and our\nprinci.