Features: 1.OE Number: The referencing OE number of this alternator voltage regulator are 346088, 346033, 346089, 346032, 346024, which is molded and designed depend on the original data. 2.Fitment: The voltage regulator rectifier is a replacement for 1 Series M 2011, for 128i 2008?2013, for 135i 2008?2010, for 328i 2007?2011, for 335i 2007?2010. 3.Improve Engine Power: The rectifier can provide stable voltage, directly improve the performance of low speed torsion of vehicles, enhance engine power, increase speed. 4.Energy Saving: The regulator can improve ignition efficiency, make fuel combustion more adequate, improve fuel efficiency, and reduce the use of vehicle fuel consumption. 5.Easy Installation: Easy to install, no modification, cutting, or drilling required. It adopts original standard, which is a good replacement and can perfectly match to your car. Specification: Item Type: Alternator Voltage Regulator OE Number: 346088, 346033, 346089, 346032, 346024 Material: ABS, aluminium alloy Fitment: Fits for 1 Series M 2011 Fits for 128i 2008 - 2013 N52 Engine Only Fits for 135i 2008 - 2010 Fits for 328i 2007 - 2011 Fits for 328i Convertible 2012 - 2013 Fits for 328i Coupe 2012 - 2013 Fits for 328i Wagon 2012 Fits for 328i 2009 - 2012 Fits for 328i Coupe 2013 Fits for 328xi 2007 - 2008 Fits for 335i 2007 - 2010 Fits for 335is 2011 - 2013 Fits for 335xi 2007 - 2008 Fits for 528i 2008 - 2010 Fits for 528xi 2008 Fits for 535i 2008 - 2010 Fits for 535xi 2008 Fits for X3 2007 - 2010 Fits for X5 3.0si 2007 - 2008 Fits for X5 30i 2009 - 2010 PackageList: 1 x Regulator Note: Please double check the part number of your item, matching information is for reference only. If you are unsure of the item, please contact us before buying to avoid unnecessary return, thanks!