FEATURES - Easy to install by direct replacement.Eliminate noisy tensioner pulley and no more belt noise.Ensures proper belt tension,alignment and damping for superior performance. FUNCTION - The replacement automatic serpentine belt tensioner pulley assembly transports power to the alternator,power steering pump,air conditioning and keeps it running smoothly and effectively.It is designed for vehicles that needs an automatic belt tensioner.The torsional round spring design provides consistent tension for maximum durability. OE QUALITY - Manufactured in ISO/TS16949 certified facilities by the advanced machines and each part is built to stringent OE specifications.Stable characteristics,High reliability. PERFECT FIT - Engineered and tested to match the fit,function and performance of the original tensioner on specified vehicles.It ensures proper belt tension, alignment, and damping for superior performance.Easy to install by direct replacement. PLEASE NOTE - Before placing the order, Please refer to the Vehicle menu (amazonconfirmedfit) at the top left corner, select your vehicle's "Year, Make, Model" and click "Check Fit"to make sure the parts fit your car, or check the product page description to make sure it matches exactly.Any questions please free to contact us and you will get a satisfactory solution. About us

Inc. is well-known as a leader in providing quality auto parts to the aftermarket.
Strict product design and manufacturing standards to ensure consistent quality that meets or exceeds original component requirements.
Our expertise translates to superior Aftermarket,serving professional installers and do-it-yourself customers.
At AUQDD, we take pride in the quality of our products and in your satisfaction.Look forward to becoming your first choice brand of Automatic Belt Tensioner and Pulley Assembly.

Product Fitment Information:
Fits 3.0L L6 2996cc
Fits Engine Designation:N51B30A;N52B30A;N52
Fits Mfr Body Code:E82 E88 E90 E91 E92 E93 E60 E61 E83 E70 E85 E86 E89

Compatible With BMW
2008-2013 BMW 128i
2007-2013 BMW 328i [For Base With 3.0L L6 Only]
2009-2013 BMW 328i xDrive [For Base With 3.0L L6 Only]
2007-2008 BMW 328xi
2006-2006 BMW 325i [For N52 Eng.]
2006-2006 BMW 325xi [For N52 Eng.]
2006-2006 BMW 330i [For N52 Eng.]
2006-2006 BMW 330xi [For N52 Eng.]
2006-2007 BMW 525i [For 3.0L L6 With N52 Eng.]
2006-2007 BMW 525xi
2008-2010 BMW 528i
2009-2010 BMW 528i xDrive
2008-2008 BMW 528xi
2006-2007 BMW 530i
2006-2007 BMW 530xi
2007-2010 BMW X3 [For 3.0L L6 Only]
2007-2010 BMW X5 [For 3.0L L6 Only]
2006-2011 BMW Z4 [For 3.0L L6 and N52B30A;N52 Eng.]

Package Includes:
1 x Accessory Drive Belt Tensioner Assembly (Tensioner only) - 39112

Instruction manual is not included. Professional installation is highly recommended.
Please check above compatibility list to make sure it fits your vehicle.
If you are not sure if the product is suitable for your car.please contact me in time, I will be happy to help you.