Part #: 21012

Remy 21012 Alternator

Premium Remanufactured
⚙️ 8 vehicles fit this part
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Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Premium Remanufactured
🚗Fitment: Chevrolet and GMC, P30 and P3500
🔄Easy Returns — Return within 60 days for a full refund
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Reliable Alternator for Chevrolet P30 and GMC P3500

The Remy Premium Remanufactured Alternator 21012 is designed to restore charging system performance in Chevrolet P30 and GMC P3500 vehicles. This 12-volt alternator delivers a 124-amp output with an external fan and includes a pulley for straightforward installation.

Key Features of Remy Alternator 21012

  • Amperage Rating: 124 amps for consistent electrical output
  • Fan Type: External fan for effective cooling
  • Voltage: 12 volts suitable for standard vehicle electrical systems
  • Rotation Direction: Clockwise rotation matching OEM specifications
  • Voltage Regulator: Internal regulator for simplified wiring
  • Pulley Included: Ready for installation without additional parts
  • OE Manufacturer: Remanufactured to Delco/Delphi standards

About the Premium Remanufactured Product Line

The Premium Remanufactured line by Remy focuses on delivering alternators rebuilt to meet original equipment manufacturer (OEM) specifications. Each unit undergoes thorough testing and quality checks to ensure reliable performance and durability. This alternator 21012 is part of that line, offering a cost-effective solution with remanufactured components that maintain the integrity and function expected from Delco/Delphi originals.

Detailed Product Description

This Remy alternator 21012 is engineered specifically for Chevrolet P30 and GMC P3500 models, providing a 124-amp output to support the vehicle’s electrical demands. The external fan design enhances cooling efficiency, helping to maintain optimal operating temperatures during extended use. Featuring a clockwise rotation and an internal voltage regulator, this alternator simplifies installation and ensures compatibility with the vehicle’s charging system. The included pulley allows for direct replacement without the need for additional parts, streamlining the repair process.

Common Issues Addressed by This Alternator

  • Battery not charging or losing charge while driving
  • Dimming or flickering vehicle lights
  • Electrical system warning lights on the dashboard
  • Unusual noises from the alternator area
  • Vehicle stalling or difficulty starting due to electrical failure

Installation Notes and Tips

  • Verify vehicle compatibility with Chevrolet P30 or GMC P3500 before installation
  • Ensure battery is disconnected prior to alternator removal
  • Check belt tension and condition when installing the new alternator
  • Confirm clockwise rotation matches the original alternator
  • Test charging system after installation to verify proper function

Quality Assurance and Warranty

Remy’s Premium Remanufactured alternators are rebuilt to meet or exceed OEM standards, including rigorous testing for electrical output and durability. This alternator 21012 is manufactured to Delco/Delphi specifications, ensuring reliable performance. Warranty coverage details should be confirmed with the distributor or installer.

BrandRemy
Part Number21012
PositionPremium Remanufactured
Amperage Rating124
Fan TypeExternal
New or RemanufacturedRemanufactured
OE ManufacturerDelco/Delphi
Pulley IncludedYes
Rotation DirectionClockwise
Voltage (V)12
Voltage Regulator TypeInternal

This part fits 8 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
1995ChevroletP305.7LV8N/AOpt; 124 Amps; Premium Remanufactured
1995GMCP35005.7LV8N/AOpt; 124 Amps; Premium Remanufactured
1994ChevroletP305.7LV8N/AOpt; 124 Amps; Premium Remanufactured
1994GMCP35005.7LV8N/AOpt; 124 Amps; Premium Remanufactured
1993ChevroletP305.7LV8N/AOpt; 124 Amps; Premium Remanufactured
1993GMCP35005.7LV8N/AOpt; 124 Amps; Premium Remanufactured
1992ChevroletP305.7LV8N/AOpt; 124 Amps; Premium Remanufactured
1992GMCP35005.7LV8N/AOpt; 124 Amps; Premium Remanufactured

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

1046338610480024

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.