5/8" Pulley Alternator – 1-Wire GM Delco 10SI – 63 Amp – Classic Car Replacement

This Rareelectrical alternator is a sweet drop-in replacement for classic cars running GM Delco 10SI setups.

It’s a 1-wire design, so installation is a breeze—just hook it up and go.

Rated at 63 amps with a 5/8-inch pulley, it’s got an internal regulator and external fan.

The rotation is clockwise, and it runs on 12 volts.

Brand new, never used.

Comes with part numbers 683058070111 and 7127-3 for cross-reference.

Weighs about 12.3 pounds and built for reliability.

Heads-up: California Prop 65 applies—might expose you to stuff like lead or silica, but that’s standard for many auto parts.

Perfect for getting that classic back on the road!