[Perfect Fit] - Manufactured using the same or improved technology and quality materials as the Original Equipment Manufacturer (OEM) part assuring a factory match. [Long Life] - Torsional round spring design provides reliability as well as consistent tension.High-strength alloy or composite construction withstands engine heat and vibration [Testing] - Rigorous testing and quality control for all bearing components.Built to withstand High-Performance use and optimal operation. [Verified Compatibility] - We stand by our fit. If you've verified your vehicle details and have any issues, our support team will provide a prompt solution. [Vehicle Fitment] - Please confirm your vehicle details by VIN and check your vehicle in the fitment filter system before purchase.

Package Includes:

• 1 x Part # 39112 Belt Tensioner Assembly

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Compatible With:

• BMW 
  2008-2013 BMW 128i E82/E88 L6 3.0L
  2006-2011 BMW 323i E46 L6 2.5L
  2006 BMW 325i E90 L6 3.0L
  2006 BMW 325xi E90/E91 L6 3.0L
  2007-2013 BMW 328i E92/E93 L6 3.0L
  2007-2008 BMW 328xi E90/E91 L6 3.0L
  2006 BMW 330i E46 L6 3.0L
  2006 BMW 330xi E46 L6 3.0L
  2006-2007 BMW 525i E90 L6 3.0L
  2006-2007 BMW 525xi E90 L6 3.0L
  2008-2010 BMW 528i E60 L6 3.0L
  2008 BMW 528xi E60 L6 3.0L
  2006-2007 BMW 530i E60 L6 3.0L
  2006-2007 BMW 530xi E60/E61 L6 3.0L
  2007-2010 BMW X3 E83 L6 3.0L
  2007-2010 BMW X5 E70 L6 3.0L (Note: w/o Traction Control )
  2006-2011 BMW Z4 E85/E86/E89 L6 3.0L

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Features:

• Sealed bearing resists dust and water ingress
• Coil spring (where applicable) matches OE spring rate for proper belt tension at all engine speeds
• Manufactured to OE dimensions for proper clearances and belt alignment
• High-strength alloy or composite construction withstands engine heat and vibration