fuel pump primer ROTO DIESEL 9001/090A 52244019 material:plastic and iron,aluminum with oem fuel pump primerHand primer is screwed in ... injection pump when the engine is at rest.material:plastic and iron,aluminumsuit for:benz,tractors,japanese car,european carwith oem NO ... mainly engaging in heavy-duty trucks' parts,like HOWO ,STYER and some parts ofBenz,volvo,scania,man & etc.We also produce ...