ACDelco V-Ribbed Serpentine Belt 12626222 — GM Original Equipment, OE Fit & Durable Ribbed Design

ACDelco 12626222 is a GM Original Equipment V-ribbed serpentine belt engineered to drive multiple engine accessories reliably using a single, ribbed-profile belt.

This ACDelco GM Original Equipment serpentine belt is designed, validated, and backed by General Motors for fit and performance in compatible Chevrolet, Buick, GMC, and Cadillac vehicles. Its ribbed design and precise width provide consistent contact with pulleys, improving traction and reducing slippage compared with worn or mismatched belts. Manufactured to OE specifications, this belt replaces the factory-installed unit or previously listed GM Genuine Parts (OE) items to help maintain the intended accessory drive function.

How does this belt keep engine accessories running together?

The 12626222 V-ribbed serpentine belt transmits engine torque to multiple pulleys—such as the alternator, power steering pump, air conditioning compressor, and water pump—so one continuous belt powers all accessories. Its multiple ribs match pulley grooves for positive engagement and steady power delivery under load.

• Ribbed profile aligns with multi-groove pulleys to prevent slip
• Appropriate width and cross-section for consistent contact pressure
• Single-belt arrangement reduces part complexity and routing errors

Why choose an ACDelco GM Original Equipment belt rather than an aftermarket option?

ACDelco GM Original Equipment belts are engineered to GM specifications and validated by GM engineers for compatibility and safety in GM vehicles. That means the belt’s dimensions, material composition, and performance characteristics are intended to match the factory part, helping maintain accessory operation and vehicle system calibrations.

• Designed and tested to the same standards as factory-installed parts
• May replace parts formerly listed as GM Genuine Parts (OE) or ACDelco Professional
• Updated designs follow GM production improvements and material advances

How do I know when to replace my serpentine belt?

Inspect the belt regularly for cracking, glazing, frayed edges, missing ribs, or visible wear. If you hear squealing, notice accessory malfunction, or observe looseness, replace the belt promptly to avoid accessory failure or engine overheating from a compromised drive system.

• Check for visible cracks across ribs and along the belt edges
• Look for shiny or glazed surfaces indicating slipping
• Replace immediately if ribs are missing, shredded, or severely worn

What fitment and safety considerations should I follow when installing?

Confirm the 12626222 number matches your vehicle’s required belt specification before install. Use the recommended routing and tensioning procedure from the vehicle service manual or a qualified technician to ensure proper performance and to protect related systems that rely on correct belt operation.

• Verify part number compatibility with your Chevrolet, Buick, GMC, or Cadillac model
• Follow manufacturer torque and tension specs during installation
• Have belt routing checked against the vehicle’s diagram to prevent misrouting

Who is this for: The ACDelco 12626222 V-ribbed serpentine belt is intended for owners and technicians maintaining GM vehicles who want a replacement that conforms to factory engineering and fitment. It suits anyone replacing a worn or failed belt, servicing accessory components, or restoring original drive-system performance using a validated GM Original Equipment part.