ACDelco 12590766 | Accessory Drive Belt Tensioner Assembly

Part Number
12590766
Accessory Drive Belt Tensioner Assembly

Fits: 99-05 Buick Park Avenue, 99-04 Buick Regal, 99 Buick Riviera, 99-08 Pontiac Grand Prix, 00-05 Buick LeSabre, 00-05 Chevrolet Impala, 00-05 Chevrolet Monte Carlo, 00-05 Pontiac Bonneville, 05-09 Buick Allure, 05-09 Buick LaCrosse, 06-08 Buick Lucerne

Special Price $190.43 Regular Price $206.99
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ACDelco GM Original Equipment Drive Belt Tensioner Assemblies are spring-loaded pulleys designed to draw tension on your vehicle's serpentine belt, and are GM-recommended replacements for your vehicle's original components. These original equipment drive belt tensioner assemblies have been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors. ? WARNING: Cancer and Reproductive Harm - https://www.P65Warnings.ca.gov


BRAND: ACDelco




FEATURES:


  • Buick;Chevrolet;Pontiac
  • GM-recommended replacement part for your GM vehicle's original factory component
  • Helps keep drive belt at correct tension to help maintain proper function
  • Manufactured to GM OE specification for fit, form, and function
  • Offering the quality, reliability, and durability of GM OE


SPECIFICS:


Belt TypeSerpentine
ColorNatural/Black
Degree Range Of Adjustment (deg)36
FAQ - Answer 1Yes. If the drive belt is too tight, damage to other drive components may occur.
FAQ - Question 1Can a drive belt be too tight?
Good Maintenance Practices - Section 1 - Bullet 1Before purchasing and installing a drive belt tensioner assembly, make sure it is the correct size and fit for your vehicle.
Good Maintenance Practices - Section 1 - Bullet 2Be sure to have the replacement tensioner properly aligned to the other drive component pulleys.
Good Maintenance Practices - Section 1 - Bullet 3Have your vehicle inspected as soon as possible if the 'Service Engine Soon' light illuminates.
Good Maintenance Practices - Section 1 - Bullet 4Have your vehicle inspected immediately if the 'Service Engine Soon' light flashes rapidly, as this could indicate an engine misfire condition which may damage your engine and/or engine emission components.
Good Maintenance Practices - Section 1 - Bullet 5Regularly inspect assembly for signs of damage or wear, and replace them if signs of damage are found.
Height (in)5.6
MaterialAluminum/Steel
Mount Hole Diameter (in)0.506 in
Mount Hole Diameter (mm)12.84 mm
Mount Hole Quantity4
Programming RequiredNo
Pulley Center Bore Diameter (in)0.447 in
Pulley Center Bore Diameter (mm)11.35 mm
Pulley Outside Diameter (in)3
Pulley Width (in)1.241 in
Pulley Width (mm)31.51 mm
Weight (lb)5.08

INCLUDES INLET & OUTLET PORTS


DOWNLOADS:




APPLICATIONS:


  • 1999-2004 Buick Regal
  • 2000-2005 Chevrolet Impala
  • 2000-2005 Pontiac Bonneville
  • 2000-2005 Buick LeSabre
  • 2006-2008 Buick Lucerne
  • 2005-2009 Buick LaCrosse
  • 1999-2005 Buick Park Avenue
  • 2005-2009 Buick Allure
  • 1999-1999 Buick Riviera
  • 1999-2008 Pontiac Grand Prix
  • 2000-2005 Chevrolet Monte Carlo
Customer Questions
Does AC Delco make Ford parts?
No, AC Delco produces parts primarily for General Motors vehicles and does not make parts specifically for Ford vehicles.
Can I use AC Delco parts to replace OEM parts?
Yes, in most cases AC Delco parts can be used as a replacement for OEM parts. However, it's important to ensure that the parts are compatible with your specific make and model of vehicle.
What AC Delco oil filter do I need?
AC Delco offers a variety of oil filters that are compatible with different makes and models of vehicles. To determine which AC Delco oil filter you need, consult your vehicle's owner's manual or use our online filter lookup tool that matches the make, model, and year of your vehicle.
Can a serpentine belt cause smoke?
Yes, a serpentine belt can cause smoke. A serpentine belt is an essential component of a vehicle's engine system. It drives various accessories such as the alternator, power steering pump, water pump, and air conditioning compressor. If the serpentine belt becomes worn, damaged, or misaligned, it can cause friction and generate smoke.
Why is my serpentine belt squealing?
The serpentine belt can squeal due to various reasons, including tension issues, worn-out belt, or a problem with the belt's pulleys.
Is my serpentine belt too tight?
If your serpentine belt is causing issues like excessive noise or accelerated wear on the pulleys, it may indicate that the belt is too tight.
Why did my serpentine belt come off?
Serpentine belts can come off due to factors such as belt wear, improper tension, misaligned pulleys, or a faulty tensioner.
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Compatible Vehicles

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