Remy 20213 Alternator

Remy 20213 Premium Remanufactured Alternator

The Remy 20213 is a premium remanufactured alternator built for 12-volt charging systems that require 120 amps of output. It features an internal voltage regulator, external fan design, clockwise rotation, and an included pulley for direct replacement service on select Chevrolet P30 and P20, plus GMC P3500 and P2500 applications.

Remy Premium Remanufactured parts are rebuilt to restore dependable electrical performance in demanding vehicle applications. This alternator is remanufactured from OE manufacturer Delco/Delphi specifications and is intended for drivers and technicians looking for a charging-system replacement that matches the original application requirements.

Key Features

• 120 amp alternator output for 12V charging systems
• Remanufactured construction
• Internal voltage regulator
• External fan type
• Pulley included
• Clockwise rotation
• OE manufacturer reference: Delco/Delphi
• Part number: 20213

Vehicle Fitment

• Fits 1986-1990 Chevrolet P30, N/A; Opt HD; 120 Amps; Premium Remanufactured
• Fits 1986-1989 Chevrolet P20, N/A; Opt HD; 120 Amps; Premium Remanufactured
• Fits 1986-1990 GMC P3500, N/A; Opt HD; 120 Amps; Premium Remanufactured
• Fits 1986-1989 GMC P2500, N/A; Opt HD; 120 Amps; Premium Remanufactured

What It Helps Address

• Low battery charging caused by a worn alternator
• Dim lights or electrical instability under load
• Charging-system warning lights
• Voltage output loss in high-demand service vehicles
• Replacement needs for select Chevrolet P30 and P20, and GMC P3500 and P2500 models

Installation Notes and Tips

Verify pulley style, rotation direction, amperage rating, and regulator type before installation. Confirm the vehicle’s charging-system configuration matches the listed fitment for Chevrolet P30, Chevrolet P20, GMC P3500, or GMC P2500 applications. Inspect the belt, wiring connections, and battery condition during replacement to help ensure proper charging performance. Part number 20213 is also a useful reference when confirming application details.

Quality Assurance

This Remy Premium Remanufactured alternator is built as a remanufactured OE-style replacement based on Delco/Delphi specifications. Cross-reference part numbers for this application include 1101215 and 1105499.