Replaces

1996-2001 GMC Jimmy S-15 Serpentine Belt Tensioner with Pulley (AC Delco) for V6 4.3L (8th Vin Digit W)

Part Details

  • Brands: AC Delco

This part replaces:

  • OE # 89017309
  • ACDelco 38103

  • New

AC DELCO 38103 - [DRIVE BELT TENSIONER ASSEMBLY]

This SERPENTINE BELT TENSIONER is a brand new, AC Delco part. It is the same part that you would receive if you purchased it from your local dealer!

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:

  • Replaces one of many dealer part numbers including: 8-12456-152-0, 8124561520, 10239670, 12456152, 89017309, 38103
  • Brand new, not rebuilt or remanufactured
  • Bolts to front of engine
  • Built to strict quality control standards

Note: To ensure fit please match the 8th digit of your VIN number to the VIN code in the title. Your vehicles VIN number can be found in the lower left corner of the windshield or on your registration.

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. Please keep your invoice for proof of this warranty.

  1. Removing the Serpentine Belt (0:47 in the video)
    • Check the tension of the belt by hand
    • Locate the serpentine belt diagram
    • Familiarize yourself with the route of the serpentine belt
    • With a 3/8 inch drive ratchet pull the belt tensioner aside to loosen the belt
    • Pull the belt off of the idler pull
    • Pull the belt out
  2. Removing the Serpentine Belt Tensioner (2:19 in the video)
    • Remove the 15mm bolt from the tensioner
    • Pull off the tensioner by hand
  3. Installing the New Serpentine Belt Tensioner (2:54 in the video)
    • Push the tensioner into place using the locating tab
    • Start the 15mm bolt by hand
    • Tighten the bolt to between 35-40 foot-pounds
  4. Reinstalling the Serpentine Belt (3:38 in the video)
    • Loop the belt around the crank pulley
    • Bring it around the water pump
    • Bring it around the power steering pulley
    • Bring it around the A/C pulley
    • Bring it around the tensioner and the alternator
    • Start to press it under the idler pulley
    • Use the 3/8 inch drive ratchet to move the tensioner and loosen the belt
    • Press the belt underneath the idler pulley
    • Check that the belt is routed correctly

Tools needed for replacement:

    Ratchets & Related

  • 3/8 Inch Drive Ratchet
  • Ratchet
  • Torque Wrench

  • Sockets - Metric

  • 15mm Socket

  • Wrenches - Metric

  • 15mm Wrench

How-to Video:

(05:46 min)

Tools List:

    Ratchets & Related

  • 3/8 Inch Drive Ratchet
  • Ratchet
  • Torque Wrench

  • Sockets - Metric

  • 15mm Socket

  • Wrenches - Metric

  • 15mm Wrench



This part replaces:

  • OE # 89017309
  • ACDelco 38103

Vehicle Fit

  • 1999-2000 Cadillac Escalade Serpentine Belt Tensioner with Pulley (AC Delco) for V8 5.7L (8th Vin Digit R)
  • 1996-2001 Chevy Astro Serpentine Belt Tensioner with Pulley (AC Delco) for V6 4.3L (8th Vin Digit W)
  • 2002-2005 Chevy Astro Serpentine Belt Tensioner with Pulley (AC Delco) for V6 4.3L (8th Vin Digit X)
  • 1996-2002 Chevy Blazer S10 Serpentine Belt Tensioner with Pulley (AC Delco) for V6 4.3L (8th Vin Digit W)
  • 2003-2005 Chevy Blazer S10 Serpentine Belt Tensioner with Pulley (AC Delco) for V6 4.3L (8th Vin Digit X)
  • 1996-1999 Chevy C1500 Truck Serpentine Belt Tensioner with Pulley (AC Delco) for V8 5.0L
  • 1996-1999 Chevy C1500 Truck Serpentine Belt Tensioner with Pulley (AC Delco) for V8 5.7L
  • 1996-1998 Chevy C1500 Truck Serpentine Belt Tensioner with Pulley (AC Delco) for V6 4.3L
  • 1996-1998 Chevy C2500 Truck Serpentine Belt Tensioner with Pulley (AC Delco) for V8 5.0L
  • 1996-2000 Chevy C2500 Truck Serpentine Belt Tensioner with Pulley (AC Delco) for V8 7.4L
  • 1996-2000 Chevy C2500 Truck Serpentine Belt Tensioner with Pulley (AC Delco) for V8 5.7L
  • 1996-2000 Chevy C3500 Truck Serpentine Belt Tensioner with Pulley (AC Delco) for V8 5.7L
  • 1996-2000 Chevy C3500 Truck Serpentine Belt Tensioner with Pulley (AC Delco) for V8 7.4L
  • 1996-2002 Chevy Express 1500 Van Serpentine Belt Tensioner with Pulley (AC Delco) for V6 4.3L (8th Vin Digit W)
  • 1996-2002 Chevy Express 1500 Van Serpentine Belt Tensioner with Pulley (AC Delco) (8th Vin Digit R) for V8 5.7L
  • 1996-2002 Chevy Express 1500 Van Serpentine Belt Tensioner with Pulley (AC Delco) for V8 5.0L (8th Vin Digit M)
  • 2003-2013 Chevy Express 1500 Van Serpentine Belt Tensioner with Pulley (AC Delco) for V6 4.3L (8th Vin Digit X)
  • 1996 Chevy Express 2500 Van Serpentine Belt Tensioner with Pulley (AC Delco) for V8 5.0L (8th Vin Digit M)
  • 1996-2002 Chevy Express 2500 Van Serpentine Belt Tensioner with Pulley (AC Delco) (8th Vin Digit R) for V8 5.7L
  • 1996 Chevy Express 2500 Van Serpentine Belt Tensioner with Pulley (AC Delco) for V6 4.3L (8th Vin Digit W)
  • 1998-2002 Chevy Express 2500 Van Serpentine Belt Tensioner with Pulley (AC Delco) for V6 4.3L (8th Vin Digit W)
  • 1999-2001 Chevy Express 2500 Van Serpentine Belt Tensioner with Pulley (AC Delco) for V8 5.0L (8th Vin Digit M)
  • 2003-2005 Chevy Express 2500 Van Serpentine Belt Tensioner with Pulley (AC Delco) for V6 4.3L (8th Vin Digit X)
  • 1996 Chevy Express 3500 Van Serpentine Belt Tensioner with Pulley (AC Delco) (8th Vin Digit R) for V8 5.7L
  • 1996 Chevy Express 3500 Van Serpentine Belt Tensioner with Pulley (AC Delco) for V6 4.3L (8th Vin Digit Z)
  • 1997-2000 Chevy Express 3500 Van Serpentine Belt Tensioner with Pulley (AC Delco) (8th Vin Digit J) for V8 7.4L
  • 1998-2002 Chevy Express 3500 Van Serpentine Belt Tensioner with Pulley (AC Delco) (8th Vin Digit R) for V8 5.7L
  • 1996-1999 Chevy K1500 Truck Serpentine Belt Tensioner with Pulley (AC Delco) for V8 5.7L
  • 1996-1999 Chevy K1500 Truck Serpentine Belt Tensioner with Pulley (AC Delco) for V8 5.0L
  • 1996-1998 Chevy K1500 Truck Serpentine Belt Tensioner with Pulley (AC Delco) for V6 4.3L
  • 1996-2000 Chevy K2500 Truck Serpentine Belt Tensioner with Pulley (AC Delco) for V8 5.7L
  • 1996-2000 Chevy K2500 Truck Serpentine Belt Tensioner with Pulley (AC Delco) for V8 7.4L
  • 1996-1998 Chevy K2500 Truck Serpentine Belt Tensioner with Pulley (AC Delco) for V8 5.0L
  • 1996-2000 Chevy K3500 Truck Serpentine Belt Tensioner with Pulley (AC Delco) for V8 7.4L
  • 1996-2000 Chevy K3500 Truck Serpentine Belt Tensioner with Pulley (AC Delco) for V8 5.7L
  • 1996-2002 Chevy S10 Pickup Serpentine Belt Tensioner with Pulley (AC Delco) for V6 4.3L (8th Vin Digit W)
  • 1996-1999 Chevy S10 Pickup Serpentine Belt Tensioner with Pulley (AC Delco) for V6 4.3L (8th Vin Digit X)
  • 2003-2004 Chevy S10 Pickup Serpentine Belt Tensioner with Pulley (AC Delco) for V6 4.3L (8th Vin Digit X)
  • 1999-2002 Chevy Silverado 1500 Serpentine Belt Tensioner with Pulley (AC Delco) for V6 4.3L
  • 2002-2013 Chevy Silverado 1500 Serpentine Belt Tensioner with Pulley (AC Delco) for V6 4.3L
  • 1996-1999 Chevy Suburban C1500 Serpentine Belt Tensioner with Pulley (AC Delco) for V8 5.7L
  • 1996-1999 Chevy Suburban C2500 Serpentine Belt Tensioner with Pulley (AC Delco)
  • 1996-1999 Chevy Suburban K1500 Serpentine Belt Tensioner with Pulley (AC Delco)
  • 1996-1999 Chevy Suburban K2500 Serpentine Belt Tensioner with Pulley (AC Delco)
  • 1996-2000 Chevy Tahoe Serpentine Belt Tensioner with Pulley (AC Delco) for V8 5.7L (8th Vin Digit R)
  • 1996-1999 Chevy Van - P Series Forward Control Serpentine Belt Tensioner with Pulley (AC Delco) for V8 4.3L
  • 1996-1999 Chevy Van - P Series Forward Control Serpentine Belt Tensioner with Pulley (AC Delco) for V8 7.4L
  • 1996 Chevy Van - P Series Forward Control Serpentine Belt Tensioner with Pulley (AC Delco) for V8 5.7L
  • 1996-1997 Chevy Van - P Series Forward Control Serpentine Belt Tensioner with Pulley (AC Delco) for V8 7.4L
  • 1996-1999 Chevy Van - P Series Forward Control Serpentine Belt Tensioner with Pulley (AC Delco) for V8 5.7L
  • 1998-1999 Chevy Van - P Series Forward Control Serpentine Belt Tensioner with Pulley (AC Delco) for V8 7.4L
  • 1996-1998 GMC C1500 Truck Serpentine Belt Tensioner with Pulley (AC Delco) for V6 4.3L
  • 1996-1999 GMC C1500 Truck Serpentine Belt Tensioner with Pulley (AC Delco) for V8 5.0L
  • 1996-1999 GMC C1500 Truck Serpentine Belt Tensioner with Pulley (AC Delco) for V8 5.7L
  • 1996-2000 GMC C2500 Truck Serpentine Belt Tensioner with Pulley (AC Delco) for V8 5.7L
  • 1996-2000 GMC C2500 Truck Serpentine Belt Tensioner with Pulley (AC Delco) for V8 7.4L
  • 1996-1998 GMC C2500 Truck Serpentine Belt Tensioner with Pulley (AC Delco) for V8 5.0L
  • 1996-2000 GMC C3500 Truck Serpentine Belt Tensioner with Pulley (AC Delco) for V8 5.7L
  • 1996-2000 GMC C3500 Truck Serpentine Belt Tensioner with Pulley (AC Delco) for V8 7.4L
  • 1996-2001 GMC Jimmy S-15 Serpentine Belt Tensioner with Pulley (AC Delco) for V6 4.3L (8th Vin Digit W)
  • 1996-1998 GMC K1500 Truck Serpentine Belt Tensioner with Pulley (AC Delco) for V6 4.3L
  • 1996-1999 GMC K1500 Truck Serpentine Belt Tensioner with Pulley (AC Delco) for V8 5.7L
  • 1996-1999 GMC K1500 Truck Serpentine Belt Tensioner with Pulley (AC Delco) for V8 5.0L
  • 1996-1998 GMC K2500 Truck Serpentine Belt Tensioner with Pulley (AC Delco) for V8 5.0L
  • 1996-2000 GMC K2500 Truck Serpentine Belt Tensioner with Pulley (AC Delco) for V8 5.7L
  • 1996-1999 GMC K2500 Truck Serpentine Belt Tensioner with Pulley (AC Delco) for V8 7.4L
  • 1996-2000 GMC K3500 Truck Serpentine Belt Tensioner with Pulley (AC Delco) for V8 7.4L
  • 1996-2000 GMC K3500 Truck Serpentine Belt Tensioner with Pulley (AC Delco) for V8 5.7L
  • 1996-1999 GMC S-15 Sonoma Serpentine Belt Tensioner with Pulley (AC Delco) for V6 4.3L (8th Vin Digit X)
  • 1996-2002 GMC S-15 Sonoma Serpentine Belt Tensioner with Pulley (AC Delco) for V6 4.3L (8th Vin Digit W)
  • 2003-2004 GMC S-15 Sonoma Serpentine Belt Tensioner with Pulley (AC Delco) for V6 4.3L (8th Vin Digit X)
  • 1996-2001 GMC Safari Serpentine Belt Tensioner with Pulley (AC Delco) for V6 4.3L (8th Vin Digit W)
  • 2002-2005 GMC Safari Serpentine Belt Tensioner with Pulley (AC Delco) for V6 4.3L (8th Vin Digit X)
  • 1996-1997 GMC Savana 1500 Van Serpentine Belt Tensioner with Pulley (AC Delco) (8th Vin Digit R) for V8 5.7L
  • 1996-2002 GMC Savana 1500 Van Serpentine Belt Tensioner with Pulley (AC Delco) for V8 5.0L (8th Vin Digit M)
  • 1996-2002 GMC Savana 1500 Van Serpentine Belt Tensioner with Pulley (AC Delco) for V6 4.3L (8th Vin Digit W)
  • 1999-2002 GMC Savana 1500 Van Serpentine Belt Tensioner with Pulley (AC Delco) (8th Vin Digit R) for V8 5.7L
  • 2003-2013 GMC Savana 1500 Van Serpentine Belt Tensioner with Pulley (AC Delco) for V6 4.3L (8th Vin Digit X)
  • 1996-1997 GMC Savana 2500 Van Serpentine Belt Tensioner with Pulley (AC Delco) for V8 5.0L (8th Vin Digit M)
  • 1996-2002 GMC Savana 2500 Van Serpentine Belt Tensioner with Pulley (AC Delco) (8th Vin Digit R) for V8 5.7L
  • 1996 GMC Savana 2500 Van Serpentine Belt Tensioner with Pulley (AC Delco) for V6 4.3L (8th Vin Digit W)
  • 1999-2002 GMC Savana 2500 Van Serpentine Belt Tensioner with Pulley (AC Delco) for V8 5.0L (8th Vin Digit M)
  • 1999-2002 GMC Savana 2500 Van Serpentine Belt Tensioner with Pulley (AC Delco) for V6 4.3L (8th Vin Digit W)
  • 2003-2005 GMC Savana 2500 Van Serpentine Belt Tensioner with Pulley (AC Delco) for V6 4.3L (8th Vin Digit X)
  • 1996 GMC Savana 3500 Van Serpentine Belt Tensioner with Pulley (AC Delco) (8th Vin Digit K) for V8 5.7L
  • 1996 GMC Savana 3500 Van Serpentine Belt Tensioner with Pulley (AC Delco) (8th Vin Digit N) for V8 7.4L
  • 1997-1998 GMC Savana 3500 Van Serpentine Belt Tensioner with Pulley (AC Delco) (8th Vin Digit J) for V8 7.4L
  • 1997-2002 GMC Savana 3500 Van Serpentine Belt Tensioner with Pulley (AC Delco) (8th Vin Digit R) for V8 5.7L
  • 1997 GMC Savana 3500 Van Serpentine Belt Tensioner with Pulley (AC Delco) for V6 4.3L (8th Vin Digit W)
  • 2000 GMC Savana 3500 Van Serpentine Belt Tensioner with Pulley (AC Delco) (8th Vin Digit J) for V8 7.4L
  • 1999-2002 GMC Sierra 1500 Serpentine Belt Tensioner with Pulley (AC Delco) for V6 4.3L
  • 2002-2013 GMC Sierra 1500 Serpentine Belt Tensioner with Pulley (AC Delco) for V6 4.3L
  • 1996-1999 GMC Suburban Serpentine Belt Tensioner with Pulley (AC Delco) for V8 7.4L
  • 1996-1999 GMC Suburban Serpentine Belt Tensioner with Pulley (AC Delco) for V8 5.7L
  • 1996 GMC Van - P Series Forward Control Serpentine Belt Tensioner with Pulley (AC Delco) for V8 5.7L
  • 1996-1997 GMC Van - P Series Forward Control Serpentine Belt Tensioner with Pulley (AC Delco) for V8 7.4L
  • 1996-1999 GMC Van - P Series Forward Control Serpentine Belt Tensioner with Pulley (AC Delco) for V8 5.7L
  • 1996-1999 GMC Van - P Series Forward Control Serpentine Belt Tensioner with Pulley (AC Delco) for P35 V6 4.3L (8th Vin Digit W)
  • 1996-1999 GMC Van - P Series Forward Control Serpentine Belt Tensioner with Pulley (AC Delco) for V8 7.4L
  • 1998-1999 GMC Van - P Series Forward Control Serpentine Belt Tensioner with Pulley (AC Delco) for P35 V8 7.4L (8th Vin Digit B)
  • 1996-2000 GMC Yukon Serpentine Belt Tensioner with Pulley (AC Delco) for V8 5.7L (8th Vin Digit R)
  • 1997-1999 Isuzu Hombre Serpentine Belt Tensioner with Pulley (AC Delco) for V6 4.3L (8th Vin Digit X)
  • 2000 Isuzu Hombre Serpentine Belt Tensioner with Pulley (AC Delco) for V6 4.3L (8th Vin Digit W)
  • 1996-2001 Olds Bravada Serpentine Belt Tensioner with Pulley (AC Delco) for V6 4.3L (8th Vin Digit W)
$63.45
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Part #: 1AACD00009

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AC DELCO
Brand #: 38103

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