Quality-Built 7957603 Remanufactured Alternator Delco Serpentine - 100A 12V

The Quality-Built 7957603 is a remanufactured QB Premium alternator engineered to meet or exceed original Delco OE specifications. Delivering 100 amps at 12 volts, this unit features an internal voltage regulator, external fan, clockwise rotation, and a 6-groove serpentine pulley at the 3:00 clock position — making it a direct-fit replacement for compatible GM applications.

Unlike a basic rebuilt alternator, every wear-prone component in a QB Premium unit is replaced with a new part regardless of its condition at the time of remanufacture. Each completed alternator undergoes individual end-of-line testing to ensure reliable charging performance before it ships.

Remanufacturing Process Highlights:

• Rotors are 100% electronically tested and sealed with a high-dielectric protective insulation coating
• 100% new, lead-free premium brushes and springs for long service life and consistent charging
• All bearings replaced with 100% new premium bearings packed with high-temperature grease
• Stators electronically tested for maximum insulation quality and phase balance
• Rectifiers 100% load-tested to confirm durability and charging performance
• Housings blasted clean; all mounting threads inspected and re-tapped for easy installation
• Pulleys 100% plated or powder coated for maximum corrosion protection
• Terminals are 100% OE-quality with high-temp insulators for secure, reliable connections
• Manufactured in ISO/TS 16949 certified facilities using Durability Testing and Lean Manufacturing principles

Specifications:

• Output: 100 Amps
• Voltage: 12V
• OE Manufacturer: Delco
• Pulley Type: 6-Groove Serpentine
• Regulator: Internal
• Fan Type: External
• Rotation: Clockwise
• Clock Position: 3:00
• Condition: Remanufactured (QB Premium)

Quality-Built Technical Support is available via a toll-free hotline staffed by ASE-certified master technicians. A core charge applies and must be returned at time of purchase.