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BMW

Genuine BMW N54 Accessory/Serpentine Drive Belt Mechanical Tensioner Assembly & Idler Pulley - Alternator Auxiliary Belt - E60 E61 E82 E88 E90 E91 E92 E93 - 135i 1M 335i 535i - OE OEM 11287563927

Genuine BMW N54 Accessory/Serpentine Drive Belt Mechanical Tensioner Assembly & Idler Pulley - Alternator Auxiliary Belt - E60 E61 E82 E88 E90 E91 E92 E93 - 135i 1M 335i 535i - OE OEM 11287563927

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OE Auxiliary Drive Tensioner Assembly for BMW N54 - E60 E61 E82 E88 E90 E91 E92 E93 - 135i 1M 335i 535i - Part No. 11287563927

Restore smooth, quiet auxiliary drive performance on your N54-powered BMW with this factory original tensioner assembly. Designed to keep the aux belt at the correct load for the alternator, coolant pump, power steering and air conditioning, this OE unit stabilises belt tracking, cures slip and squeak, and protects vital engine accessories on 135i, 1M, 335i and 535i models.

Why this OE belt tensioner is the smart choice

  • Direct replacement with perfect E-chassis fitment - no modifications or guessing
  • Quiet, consistent belt control that prevents glazing, slip and premature belt wear
  • Durable spring mechanism and high quality pulley bearing for long service life
  • Restores reliable charging, cooling and steering assist on N54 engines
  • Genuine BMW quality for peace of mind and factory-level reliability

We install these on customer cars and our own builds, and the results speak for themselves: quieter idle, no more start-up squeal, stable belt tracking and dependable accessory drive operation. Our customers consistently report a noticeable improvement in refinement and confidence.

Vehicle applications - N54 3.0 twin turbo petrol

1 Series

  • E88 135i Convertible - production 11/2006 to 02/2010
  • E82 135i Coupe and 1M Coupe - production 11/2006 to 06/2012

3 Series

  • E90 335i Saloon - production 03/2006 to 09/2008
  • E90 LCI 335i Saloon - production 07/2007 to 03/2010
  • E91 335i Touring - production 03/2006 to 08/2008
  • E91 LCI 335i Touring - production 07/2007 to 02/2010
  • E92 335i Coupe - production 06/2005 to 02/2010
  • E92 LCI 335i Coupe - production 07/2009 to 06/2013
  • E93 335i Convertible - production 10/2005 to 02/2010
  • E93 LCI 335i Convertible - production 09/2009 to 10/2013

5 Series

  • E60 LCI 535i Saloon - production 04/2006 to 12/2009
  • E61 LCI 535i Touring - production 04/2006 to 03/2010

Part number

11287563927 - Original Equipment auxiliary belt tensioner for BMW N54 applications.

Typical signs your tensioner needs replacing

  • Squeak, chirp or rattle at idle or on cold start
  • Unstable belt path or wobbling pulley
  • Battery warning light or inconsistent charging
  • Temperature creep from reduced water pump drive
  • Heavier steering effort due to reduced pump assist

Fitment check

We will confirm compatibility before dispatch. Add your UK registration or last 7 of VIN at checkout and we will verify you receive the correct OE unit.

Professional installation

Want it fitted properly the first time? Book installation with MJ Modifications in Warwickshire. Request a quote at info@mjmodifications.co.uk.

Manufactured by

BMW - Original Equipment component

Warranty

Two-year manufacturer warranty for UK customers and one year for international customers when a VIN is supplied at checkout on eligible vehicles.

Search-friendly terms

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Order today and refresh your N54 auxiliary drive with a quality OE tensioner that fits perfectly, runs quietly and lasts.

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