# 7971N - Alternator, 130 Amp, 12 Volt, Bi-Directional, Negative Ground, 3-Wire System, Replaces Delco 21SI

7971N - Alternator, 130 Amp, 12 Volt, Bi-Directional, Negative Ground, 3-Wire System, Replaces Delco 21SI

For: Delco 21SI Series

Dimensions:

• 5/16-18 Battery Terminal
• 10-24 R-terminal located in I-Terminal Hole

Notes: Negative Ground. 3-Wire System.

Features:

• 100% New
• Premium rectifier & regulator.
• Premium, hi-temperature bearing.
• Long-shaft rotor & longer needle bearing provides more bearing surface to spread the load for longer lasting service
• 1/4-20 thru bolts - larger than OE 10-24 bolts.
• Rotor coil leads are epoxied to prevent vibration failure.
• Hi-temperature class-H windings.
• Precision CNC machined castings.
• OE performance output curve.

Used On: Bluebird (1992-1996) , Chevrolet (1989-2002) , GMC (1989-2002)

Replaces: Cummins 3675156RX, 3675157RX, Delco 1117895, 1117896, 1117903, 1117904, 1117907, 1117908, 1117927, 1117928, 19010112, 19010113, Lester 7666, 7971, 8010