Replaces

1995-1998 Pontiac Bonneville Serpentine Belt Tensioner for V6 3.8L

This part replaces:

  • DORMAN 419-105
  • OE # 24504818

  • New

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:

  • Direct replacement
  • Brand new not rebuilt
  • Replaces dealer part number: 24504818
  • Correct for standard and supercharged engines

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 (0:40 in the video)
    • Disconnect the negative battery cable with an 8mm wrench
    • Familiarize yourself with the route of the serpentine belt
    • Insert a 15mm socket & ratchet into 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. Removing the Alternator (1:16 in the video)
    • Remove the three 13mm bolts from the alternator
    • Remove the 10mm bolt from the alternator bracket
    • Remove the 13mm nut from the bracket below the coils
    • Lift the alternator up
    • Disconnect the alternator wiring harness
    • Remove the alternator
  3. Draining the Coolant (2:32 in the video)
    • Remove the 10mm bolts from the splash pan
    • Remove the 7mm bolts from the splash pan
    • Place a drain pan beneath the coolant
    • Turn the plastic drain plug
    • Drain the coolant
    • Turn the plastic drain plug
    • Reattach the 7mm bolts to the splash pan
    • Reattach the 10mm bolts to the splash pan
  4. Removing the Tensioner (4:19 in the video)
    • Remove the two 8mm bolts from the tensioner that hold the coolant pipes
    • Pull up and wiggle the coolant pipes to remove them
    • Remove the two 13mm bolts from the tensioner
    • Place a flat blade screwdriver between the engine block and tensioner
    • Pry the tensioner free
  5. Installing the New Tensioner (7:37 in the video)
    • Check to make sure the surfaces where the seal will be inserted are clean
    • Place the new elbow into the new tensioner
    • Line up the tensioner with the engine block and press it in
    • Insert and tighten the 13mm bolts into the tensioner
    • Remove the seals from the coolant pipes with a pick tool
    • Fit the new seal onto the coolant pipes
    • Insert the coolant pipes
    • Insert and tighten the two 8mm bolts that hold the coolant pipes
  6. Installing the Alternator (10:25 in the video)
    • Place the alternator on top of the tensioner
    • Insert the 13mm bolts into the alternator
    • Insert the 10mm bolt into the alternator bracket
    • Place the bracket into place
    • Insert the 13mm bolts on the alternator and below the coils
    • Connect the alternator wiring harness
  7. Reinstalling the Serpentine Belt (11:45 in the video)
    • Loop the belt around the A/C compressor pulley
    • Bring it around the crankshaft pulley
    • Bring it around the water pump pulley
    • Bring it around the idler pulley
    • Bring it around the power steering pulley
    • Pull the belt over the alternator
    • Pull the tensioner clockwise with the 15m socket and ratchet
    • Pull the belt over the tensioner
    • Release the tensioner
  8. Filling the Coolant (12:21 in the video)
    • Remove the radiator cap
    • Refill the coolant bottle as needed
    • Reconnect the negative battery cable

Tools needed for replacement:

    Materials, Fluids, and Supplies

  • Anti-Freeze

  • Ratchets & Related

  • Ratchet

  • Screwdrivers & Related

  • Flat Blade Screwdriver
  • Pry Bar

  • Sockets - Metric

  • 10mm Socket
  • 13mm Socket
  • 15mm Socket

  • Specialty Tools

  • Drain Pan
  • Pick

  • Wrenches - Metric

  • 8mm Wrench

How-to Video:

(13:03 min)

Tools List:

    Materials, Fluids, and Supplies

  • Anti-Freeze

  • Ratchets & Related

  • Ratchet

  • Screwdrivers & Related

  • Flat Blade Screwdriver
  • Pry Bar

  • Sockets - Metric

  • 10mm Socket
  • 13mm Socket
  • 15mm Socket

  • Specialty Tools

  • Drain Pan
  • Pick

  • Wrenches - Metric

  • 8mm Wrench



This part replaces:

  • DORMAN 419-105
  • OE # 24504818

Vehicle Fit

  • 1996-1998 Buick LeSabre Serpentine Belt Tensioner for V6 3.8L
  • 1995-1998 Buick Park Avenue Serpentine Belt Tensioner for V6 3.8L
  • 1996-1998 Buick Regal Serpentine Belt Tensioner for V6 3.8L
  • 1995-1998 Buick Riviera Serpentine Belt Tensioner for V6 3.8L
  • 1995-1997 Chevy Camaro Serpentine Belt Tensioner for V6 3.8L
  • 1998 Chevy Lumina Serpentine Belt Tensioner for V6 3.8L
  • 1998 Chevy Monte Carlo Serpentine Belt Tensioner for V6 3.8L
  • 1995-1998 Olds 88 Serpentine Belt Tensioner for V6 3.8L
  • 1995-1998 Olds 98 Serpentine Belt Tensioner for V6 3.8L
  • 1995-1996 Olds 98-Regency Serpentine Belt Tensioner for V6 3.8L
  • 1998 Olds Intrigue Serpentine Belt Tensioner for V6 3.8L
  • 1995-1998 Olds LSS Serpentine Belt Tensioner for V6 3.8L
  • 1997-1998 Olds Regency Serpentine Belt Tensioner for V6 3.8L
  • 1995-1998 Pontiac Bonneville Serpentine Belt Tensioner for V6 3.8L
  • 1995-1997 Pontiac Firebird Serpentine Belt Tensioner for V6 3.8L
  • 1997-1998 Pontiac Grand Prix Serpentine Belt Tensioner for V6 3.8L
$64.95
Save 57%
List: $150.35 Save: $85.40
Part #: 1AEBT00015

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