Audi A4 A4 Quattro Serpentine Belt Tensioner with Pulley - 1AEBT00092

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Vehicle Fit

This replacement serpentine belt tensioner is just what you need to get your vehicle in good working order again! If you are hearing a whirring noise from the front of your engine or if your belt often screeches you may be in need of a new belt tensioner. This part commonly wears out between 60,000 and 70,000 Miles. If it fails suddenly it can leave you stranded.


  • Brand New Serpentine Belt Tensioner
  • Includes Smooth Pulley
  • Replaces dealer part numbers: 06B 903 133, 06B 903 133 A, 06B 903 133 D, 06B 903 133 E, 06B903133, 06B903133A, 06B903133D, 06B903133E
  • Direct replacement
  • Built to strict quality control standards

This tensioner makes a great replacement and has good cost savings over a dealer unit.

Item Condition: New

Attention California Customers:

WARNING: Cancer and Reproductive Harm -

Lifetime Warranty

This item is backed by our limited lifetime warranty. In the event this item should fail due to manufacturing defects during intended use, we will replace the part free of charge.

  1. step : Removing the Serpentine Belt (0:42)
    • Insert the 18mm wrench into the tensioner
    • Turn the tensioner clockwise to loosen the belt
    • Pull the belt off the alternator
    • Release the tensioner
  2. step : Installing the Tensioner (1:06)
    • Remove the three 13mm bolts from the tensioner
    • Lift the tensioner up and out
  3. step : Installing the Tensioner (1:45)
    • Tap the pin down with an 18mm wrench
    • Insert the lifting hook into place
    • Insert the top bolt into place
    • Slide the tensioner into place
    • Thread the top bolt in
    • Insert the other two 13mm bolts
    • Hand tighten the three bolts
    • Torque the bolts to 30 ft/lbs
  4. step : Reinstalling the Serpentine Belt (3:15)
    • Pull the belt up onto the alternator
    • Pull clockwise on the tensioner with an 18mm wrench
    • Remove the pin
    • Slowly release the tensioner

Tools needed for replacement:

    Ratchets & Related

  • Torque Wrench

  • Wrenches - Metric

  • 13mm Wrench
  • 18mm Wrench

4.89/ 5.0
9 reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
part fit perfect and easy to install , price and shipping affortable,will order more parts, customer service very friendly and help full
November 6, 2017
January 15, 2018
How to videos help a lot!
Replacement part is good quality and direct fit. Their how to videos are detailed and clear, which are great for a very amateur mechanic like myself. Decided to change out my serpentine belt and belt tensioner - the how to videos for both of these parts were a huge help!!
September 17, 2018
Clean and better than new
This part look better than the part I was replacing and fixed the annoying squeak. The price was not only competitive it was just not a smart choice to go with anybody else.
September 30, 2018
Serpentine Belt Tensioner
My old serpentine belt tensioner was rattling when my car was idle. I ordered this off of 1aauto for a cheap price and is a perfectly new tensioner that works. Took 30 minutes to install, no concerns.
October 22, 2018
great price, great service, great fit, prompt delivery
Serpentine belt tensioner for my Audi purchased through 1A was easy to order, was MUCH lower priced than other websites, and it arrived exactly when promised. Ive ordered many parts through 1A Auto over the years and found them consistently to be the best place to get quality replacement parts always at huge savings. Ive never had any problems with 1A.
April 4, 2019
Good stuff
It fit perfectly, and was easy to put in and its like half the price from everybody else. Would go back if i need something else :)
April 30, 2019
Works great
Been about a month now and my belt tensioner hasn’t been giving me any problems, you guys also include a video tutorial that has helped me out as well!
July 3, 2019
Two thumbs up!!
Tensioner worked just as planned. Two thumbs up!!
August 27, 2019
Will this fit my car? Add a vehicle to make sure
Customer Q&A
Ask a question to 1A Auto customers who purchased the product
It fit on audi a4 2004 1.8 turbo?
CARLOS H June 24, 2016
Vehicle Fit 2002-2005 Audi A4 Serpentine Belt Tensioner with Pulley for L4 1.8L Turbo
Brian F June 27, 2016
Year Make Model Description
2002-2005Audi A4 Audi A4 L4 1.8L Turbo Serpentine Belt Tensioner with Pulley
2005-2008Audi A4 Audi A4 L4 2.0L Turbo Serpentine Belt Tensioner with Pulley
2002-2005Audi A4 Quattro Audi A4 Quattro L4 1.8L Turbo Serpentine Belt Tensioner with Pulley
2005-2008Audi A4 Quattro Audi A4 Quattro L4 2.0L Turbo Serpentine Belt Tensioner with Pulley
Part 1AEBT00092
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