ACDelco GM Original Equipment 12576447 V-Ribbed Serpentine Belt – OEM GM A/C Drive Belt

Restore Factory Accessory Drive Performance With ACDelco 12576447

The ACDelco GM Original Equipment 12576447 V-Ribbed Serpentine Belt is an OE replacement designed, engineered, and validated to General Motors standards for compatible GM vehicles.

An aging drive belt can develop worn ribs, glazing, noise, and slipping. Replacing a deteriorated belt helps maintain reliable power transfer between the engine and the accessories it drives.

Part number 12576447 is cataloged as an A/C compressor drive belt for many compatible Chevrolet, GMC, and Cadillac applications. Unlike a universal belt, this replacement is intended for specific factory pulley and accessory configurations.

Whether you’re maintaining a Chevrolet Silverado, servicing a GMC Sierra, or repairing a Cadillac Escalade, choosing the correct original equipment belt helps restore factory-specified accessory drive operation.

Key Features and Benefits

  • GM Original Equipment Quality: Designed and validated for compatible General Motors applications.
  • Factory-Specified Replacement: Helps maintain the intended belt routing and pulley engagement.
  • Six-Rib V-Ribbed Construction: Provides traction across compatible grooved pulleys.
  • Reliable Accessory Operation: Transfers engine power to the specified belt-driven accessory.
  • Designed for Underhood Conditions: Built for repeated flexing and demanding engine temperatures.
  • Direct Replacement Fit: Intended for compatible factory accessory-drive configurations.
  • GM-Backed Product: Part of ACDelco’s original equipment replacement parts lineup.
  • Preventive Maintenance Value: Replacing a deteriorated belt can help prevent unexpected accessory drive problems.

ACDelco 12576447 Specifications

Specification Details
Manufacturer ACDelco
Product Line GM Original Equipment
Part Number 12576447
Product Type V-Ribbed Serpentine Belt
Rib Count 6
Top Width 0.81 inches / 20.7 mm
Color Black
Material Rubber
Application A/C compressor drive on specified vehicles
Replaces GM Numbers 12554028, 12569346

Catalog note: GM’s online specifications display conflicting belt length measurements. Confirm dimensions using the vehicle’s VIN and original belt before ordering.

Vehicle Compatibility – Year, Make and Model

ACDelco 12576447 is listed for select General Motors vehicles, including:

Years Make Model
2002–2008 Cadillac Escalade
2003–2008 Cadillac Escalade ESV
2002–2008 Cadillac Escalade EXT
2002–2006 Chevrolet Avalanche 1500
2002–2006 Chevrolet Avalanche 2500
2007–2008 Chevrolet Avalanche
2003–2008 Chevrolet Express 1500 / 2500 / 3500
1999–2008 Chevrolet Silverado 1500
2001–2008 Chevrolet Silverado 2500 HD
2000–2008 Chevrolet Suburban
2001–2008 Chevrolet Tahoe
2003–2008 GMC Savana 1500 / 2500 / 3500
1999–2008 GMC Sierra 1500
2001–2008 GMC Sierra 2500 HD
2000–2008 GMC Yukon / Yukon XL

Important fitment restrictions: Applications vary by engine, model year, air conditioning configuration, and accessory belt position. These model ranges are not universal fitment guarantees. Verify the exact application against the manufacturer’s catalog or vehicle VIN.

$25.15

Why Choose GM Original Equipment?

ACDelco GM Original Equipment parts are designed or validated by General Motors for specified vehicles.

The 12576447 belt is intended to restore the original belt-drive configuration rather than substitute an approximate belt length.

Correct fitment helps support:

  • Proper pulley engagement
  • Reliable power transmission
  • Correct belt tracking
  • Consistent accessory operation
  • Reduced risk of belt slipping or abnormal noise

Signs Your A/C Drive Belt Needs Replacement

Inspect the belt if you notice:

  • Squealing when the air conditioning engages
  • Cracked, missing, or damaged belt ribs
  • Frayed belt edges
  • Glazed or contaminated belt surfaces
  • Abnormal belt vibration
  • Belt tracking problems
  • Visible wear around the pulley system

Noise may also originate from a worn tensioner, idler pulley, compressor bearing, or misaligned pulley.

Inspect the complete drive system before replacing components.

Installation and Maintenance Tips

  1. Confirm part number 12576447 matches your vehicle’s specified belt position.
  2. Turn off the engine and allow it to cool.
  3. Locate the factory accessory belt routing diagram.
  4. Inspect the existing belt and pulleys.
  5. Release belt tension using the correct factory procedure.
  6. Remove the old belt and compare it with the replacement.
  7. Install the ACDelco belt using the specified routing.
  8. Verify all six ribs are properly seated.
  9. Restore the correct belt tension.
  10. Start the engine and check for proper tracking and abnormal noise.

For additional maintenance guidance, read our serpentine belt replacement guide.

Buy ACDelco GM OE 12576447 at Pro Street Online

Maintain your GM vehicle’s factory accessory drive configuration with the ACDelco GM Original Equipment 12576447 V-Ribbed Serpentine Belt.

Designed for compatible Chevrolet, GMC, and Cadillac vehicles, this six-rib OE replacement provides a factory-specified solution for maintaining reliable accessory drive performance.

Shop ACDelco belts and other automotive replacement parts at Pro Street Online.

Specification: ACDelco GM Original Equipment 12576447 V-Ribbed Serpentine Belt – OEM GM A/C Drive Belt

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