ACDelco 12576446 | Serpentine Belt

Part Number
V-Ribbed Serpentine Belt

Fits: 03-06 Chevrolet SSR, 03-06 Chevrolet Trailblazer EXT, 03-06 GMC Envoy XL, 03-06 Isuzu Ascender, 04-07 Buick Rainier, 04-05 GMC Envoy XUV, 05-09 GMC Envoy, 05-09 Saab 9-7x, 06-09 Chevrolet Trailblazer

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ACDelco GM Original Equipment Serpentine Belts are designed, engineered, and tested to rigorous standards, and are backed by General Motors. These serpentine belts allows for the operation of various pulleys and drive belt accessories with the use of a single belt. The width and ribbed construction of the serpentine belt creates a secure point of contact with the pulley, which allows for traction. ACDelco GM Original Equipment parts are the true OE parts installed during the production or validated by General Motors for GM vehicles. Some ACDelco GM Original Equipment parts may have formerly appeared as GM Genuine Parts (OE) or ACDelco Professional. ? WARNING: Cancer and Reproductive Harm -



  • Allows for the operation of various pulleys, and drive belt accessories, with the use of a single belt
  • Buick;Chevrolet;GMC;Isuzu;Saab
  • Creates a secure point of contact with the pulley, which allows for traction
  • GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
  • GM regularly updates production and service part designs to integrate new materials and technologies
  • Original equipment parts are designed to work with your GM vehicle safety systems -- aftermarket replacement parts may not meet the same OE safety regulations, depending on the part type
  • Some ACDelco GM Original Equipment parts may have formerly appeared as GM Genuine Parts (OE) or ACDelco Professional


Height (in).7
Length (ft)16.2
MaterialReinforced Rubber
Programming RequiredNo
Rib Quantity4
Weight (lb).11
Width (in)4




  • 2003-2006 Isuzu Ascender - Position: Air Conditioning
  • 2003-2006 Chevrolet SSR - Position: Air Conditioning
  • 2004-2005 GMC Envoy XUV - Position: Air Conditioning
  • 2003-2006 GMC Envoy XL - Position: Air Conditioning
  • 2003-2006 Chevrolet Trailblazer EXT - Position: Air Conditioning
  • 2005-2009 GMC Envoy - Position: Air Conditioning
  • 2005-2009 Saab 9-7x - Position: Air Conditioning
  • 2004-2007 Buick Rainier - Position: Air Conditioning
  • 2006-2009 Chevrolet Trailblazer - Position: Air Conditioning
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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