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.

Specifications:

  • Brand new, not rebuilt or remanufactured
  • Includes pulley
  • Direct replacement
  • Built to strict quality control standards

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

Lifetime Warranty

This item is backed by a Limited Lifetime Warranty. In the event this item should fail due to manufacturing defects during intended use, we will exchange the part free of charge (excludes shipping charges) for the original purchaser.

  1. step : Accessing the Tensioner (0:55)
    • Remove the engine oil dipstick
    • Pull off the plastic engine cover
    • Insert the oil dipstick
    • Pull the radiator hose aside for better access
  2. step : Testing the Belt Tensioner (1:29)
    • Pull on the belt by hand to test tension
    • If the belt moves by hand, the tensioner is worn
  3. step : Removing the Belt Tensioner (1:42)
    • Attach a 13mm socket with ratchet and extension or vise grip pliers to the tensioner knob
    • Pull the tensioner aside to release tension from the belt
    • Pull the belt off the tensioner and the alternator
    • Release the tensioner
    • Remove the three 13mm bolts from the belt tensioner
    • Pull the tensioner off, up, and out of the engine compartment
  4. step : Installing the New Belt Tensioner (3:32)
    • Put the new tensioner into place
    • Start one of the 13mm bolts by hand
    • Start the other two 13mm bolts by hand
    • Tighten the three 13mm bolts to between 25 – 30 foot-pounds
    • Consult a belt diagram if necessary
    • Attach vise-grip pliers to the tensioner knob
    • Pull the tensioner aside
    • Pull the belt over the alternator
    • Release the tensioner
  5. step : Reinstalling the Engine Cover (4:58)
    • Remove the oil dipstick
    • Put the plastic engine cover back on
    • Insert the engine oil dipstick

Tools needed for replacement:

    Pliers, Cutters & misc Wrenches

  • Vise Grip Pliers

  • Ratchets & Related

  • Socket Extensions
  • Ratchet

  • Sockets - Metric

  • 13mm Socket

  • Wrenches - Metric

  • 13mm Wrench

5.0 / 5.0
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Quality part
Well I honestly haven't installed this tensioner, sort of got it for the future. But it looks good and the price was very much cheaper than other places.
June 24, 2018
Purchased
1 month ago
Booyow!!! Simple, no problems.
Arrived faster than expected and was easy to put on. I'm far from being a mechanic and doing this myself saved me a bunch of money.
January 25, 2018
Purchased
6 months ago
Installation just like video!
Tensioner installation was very simple and the installation pin held the tensioner open making the belt placement very easy. Then, while applying a little extra tension with an adjustable wrench, the pin was removed, allowing the tensioner do its job.
October 21, 2017
Purchased
9 months ago
Perfect fit!
It was a perfect fit AND with the installation video it was a breeze. Thank You 1A Auto parts
September 29, 2017
Purchased
10 months ago
Perfect Fit
Works like a charm and fit perfectly!! Thank you!!
March 17, 2017
Purchased
1 year ago
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Vehicle Fit

  • 2000-2006 Audi TT Serpentine Belt Tensioner with Pulley L4 1.8L Turbo
  • 2000-2006 Audi TT Quattro Serpentine Belt Tensioner with Pulley L4 1.8L Turbo
  • 1998-2005 VW Beetle Serpentine Belt Tensioner with Pulley L4 2.0L
  • 1999-2005 VW Beetle Serpentine Belt Tensioner with Pulley L4 1.8L Turbo
  • 1999-2006 VW Golf Serpentine Belt Tensioner with Pulley L4 2.0L
  • 2000-2006 VW Golf Serpentine Belt Tensioner with Pulley L4 1.8L Turbo
  • 1999-2005 VW Jetta Serpentine Belt Tensioner with Pulley L4 2.0L
  • 2000-2005 VW Jetta Serpentine Belt Tensioner with Pulley L4 1.8L Turbo

This part replaces:

  • OE # 06A 903 315 E
  • Reference Number 89284
  • Gates 38148
Part #: 1AEBT00039

How-to Video:

(05:33 min)