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 Serpentine Belt Tensioner
  • Includes Grooved Pulley
  • Mounts to water pump
  • Replaces dealer part number: 12609719
  • 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 : Removing the Serpentine Belt (0:25)
    • Familiarize yourself with the route of the serpentine belt
    • Insert the 15mm socket and breaker bar onto the tensioner
    • Turn the tensioner clockwise to loosen the belt
    • Pull the belt off the alternator
    • Release the tensioner
    • Pull the belt off by hand
  2. step : Removing the Serpentine Belt Tensioner (1:42)
    • Remove the two 15mm bolts from the tensioner
    • Remove the tensioner
  3. step : Installing the Serpentine Belt Tensioner (2:55)
    • Insert the tensioner into place
    • Hand-tighten the 15mm bolts
    • Preliminarily tighten the bolts with a socket and ratchet
    • Torque the bolts to 37 foot-pounds
  4. step : Installing the Serpentine Belt (3:55)
    • Loop the belt under the idler pulley
    • Pull the belt over the alternator
    • Bring it around the power steering pulley
    • Bring it around the idler pulley
    • Bring it around the water pump
    • Bring it around the crank pulley
    • Pull the tensioner clockwise with the 15mm socket and breaker bar
    • Feed the belt over the tensioner
    • Release the tensioner

Tools needed for replacement:

    Ratchets & Related

  • Torque Wrench
  • 1/2 Inch Breaker Bar

  • Sockets - Metric

  • 15mm Socket

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Vehicle Fit

  • 2009-2013 Cadillac Escalade Serpentine Belt Tensioner with Pulley V8 6.2L
  • 2009-2013 Cadillac Escalade ESV Serpentine Belt Tensioner with Pulley V8 6.2L
  • 2009-2013 Cadillac Escalade EXT Serpentine Belt Tensioner with Pulley V8 6.2L
  • 2009 Chevy Avalanche 1500 Serpentine Belt Tensioner with Pulley V8 6.0L
  • 2009-2013 Chevy Avalanche 1500 Serpentine Belt Tensioner with Pulley V8 5.3L
  • 2009-2012 Chevy Colorado Serpentine Belt Tensioner with Pulley V8 5.3L
  • 2009-2013 Chevy Express 1500 Van Serpentine Belt Tensioner with Pulley V8 5.3L
  • 2009-2013 Chevy Express 2500 Van Serpentine Belt Tensioner with Pulley V8 6.0L
  • 2009-2013 Chevy Express 3500 Van Serpentine Belt Tensioner with Pulley V8 6.0L
  • 2009-2013 Chevy Express 3500 Van Serpentine Belt Tensioner with Pulley V8 4.8L
  • 2009-2013 Chevy Silverado 1500 Serpentine Belt Tensioner with Pulley V8 6.2L
  • 2009-2013 Chevy Silverado 1500 Serpentine Belt Tensioner with Pulley V8 4.8L
  • 2009-2013 Chevy Silverado 1500 Serpentine Belt Tensioner with Pulley V8 5.3L
  • 2009 Chevy Silverado 1500 Serpentine Belt Tensioner with Pulley V8 6.0L
  • 2009-2013 Chevy Silverado 2500 HD Serpentine Belt Tensioner with Pulley V8 6.0L
  • 2009-2013 Chevy Silverado 3500 Serpentine Belt Tensioner with Pulley V8 6.0L
  • 2009-2013 Chevy Suburban 1500 Serpentine Belt Tensioner with Pulley V8 5.3L
  • 2009-2013 Chevy Suburban 2500 Serpentine Belt Tensioner with Pulley V8 6.0L
  • 2009 Chevy Tahoe Serpentine Belt Tensioner with Pulley V8 4.8L
  • 2009 Chevy Tahoe Serpentine Belt Tensioner with Pulley V8 6.2L
  • 2009-2013 Chevy Tahoe Serpentine Belt Tensioner with Pulley V8 5.3L
  • 2009-2012 GMC Canyon Serpentine Belt Tensioner with Pulley V8 5.3L
  • 2009-2013 GMC Savana 1500 Van Serpentine Belt Tensioner with Pulley V8 5.3L
  • 2009-2013 GMC Savana 2500 Van Serpentine Belt Tensioner with Pulley V8 4.8L
  • 2009-2013 GMC Savana 2500 Van Serpentine Belt Tensioner with Pulley V8 6.0L
  • 2009-2013 GMC Savana 3500 Van Serpentine Belt Tensioner with Pulley V8 4.8L
  • 2009-2013 GMC Savana 3500 Van Serpentine Belt Tensioner with Pulley V8 6.0L
  • 2009-2013 GMC Sierra 1500 Serpentine Belt Tensioner with Pulley V8 4.8L
  • 2009-2013 GMC Sierra 1500 Serpentine Belt Tensioner with Pulley V8 5.3L
  • 2009-2013 GMC Sierra 1500 Serpentine Belt Tensioner with Pulley V8 6.2L
  • 2009-2013 GMC Sierra 2500 HD Serpentine Belt Tensioner with Pulley V8 6.0L
  • 2009-2013 GMC Sierra 3500 Serpentine Belt Tensioner with Pulley V8 6.0L
  • 2011 GMC Sierra Denali 2500 HD Serpentine Belt Tensioner with Pulley V8 6.0L
  • 2011 GMC Sierra Denali 3500 HD Serpentine Belt Tensioner with Pulley V8 6.0L
  • 2009-2013 GMC Yukon Serpentine Belt Tensioner with Pulley V8 6.2L
  • 2009 GMC Yukon Serpentine Belt Tensioner with Pulley V8 4.8L
  • 2009-2013 GMC Yukon Serpentine Belt Tensioner with Pulley V8 5.3L
  • 2009-2013 GMC Yukon XL 1500 Serpentine Belt Tensioner with Pulley V8 5.3L
  • 2009-2013 GMC Yukon XL 2500 Serpentine Belt Tensioner with Pulley V8 6.0L
  • 2009 Hummer H2 Serpentine Belt Tensioner with Pulley V8 6.2L
  • 2009-2010 Hummer H3 Serpentine Belt Tensioner with Pulley V8 5.3L
  • 2009-2010 Hummer H3T Serpentine Belt Tensioner with Pulley V8 5.3L

This part replaces:

  • OE # 12609719
  • Reference Number 89397
  • Gates 39083
Only 2 left in stock
Part #: 1AEBT00090

How-to Video:

(05:59 min)