long trust industry tech ltd supplying Engine & Transmission Mounts, Strut Mount, Center Support, Control Arm, etc. For various cars in Mercedes Benz or BMW brands.rnWe can design and make OEM/ODM products according to your ideas and samples, which is including designing, exploiting, testing, We have strict quality control system, we have always committed ourselves to manufacture high-quality products.Electronical water pump in professional term with 20months warranty. Our leading products include: 1) Engine parts:AC cooling system(electronical water pump/radiator), valve, bearing etc 2) Alternator & starter systems 3) Brake system(Brake sensor) 4)shock Alternator Assembly Car Make:apply to BMW 523 525 E60 E66 E90 E87 730-N52 OE NO.:7521178 A 116,2586071,7525376 Warranty:12 Months Product name:Auto Alternator Material:Aluminous Voltage:12V