OE+ 7127-12-VP Remanufactured Alternator 63A 12V GM Delco 10SI V-Belt Pulley

The OE+ 7127-12-VP is a remanufactured alternator engineered as a direct replacement for GM Delco 10SI series charging systems. Rated at 63 amps and 12 volts, this unit restores proper electrical charging performance to a wide range of classic GM-platform vehicles including Buick, Cadillac, Chevrolet, GMC, Oldsmobile, and Pontiac applications.

Key Features:

• 63-amp output at 12 VDC for reliable charging system performance
• GM Delco 10SI series form factor for direct OE-style fitment
• V-belt pulley included — 2-1/2 in. (64 mm) outside diameter, single-groove
• Internal voltage regulator — no external regulator required
• Clockwise rotation with negative polarity
• Plug clock position: 12 for correct connector orientation
• External fan cooling for thermal management under load
• OE manufacturer cross-reference: Delco/Delphi

This alternator is remanufactured to restore OE fit, form, and function. It is designed for both city and highway driving conditions. The 7127-12-VP is compatible with a broad range of GM vehicles and is a widely cross-referenced part number across major aftermarket brands. Always verify fitment using your vehicle's year, make, model, and engine specifications before installation.