Part #: 20583

Remy 20583 Alternator

Premium Remanufactured
⚙️ 3 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: Buick and Oldsmobile, Reatta, Riviera, and Toronado
🔄Easy Returns — Return within 60 days for a full refund
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Reliable Alternator for Buick and Oldsmobile Vehicles

The Remy Premium Remanufactured Alternator 20583 is designed to restore charging system performance in select Buick and Oldsmobile models. Engineered to meet OE specifications, this 12-volt alternator provides consistent amperage output and includes essential components for straightforward installation.

  • Amperage Rating: 124 amps for stable electrical output
  • Fan Type: External fan for effective cooling
  • Remanufactured to OE standards by Delco/Delphi
  • Includes pulley for direct replacement
  • Clockwise rotation direction compatible with specified vehicles
  • Internal voltage regulator for reliable voltage control

About the Premium Remanufactured Product Line

The Premium Remanufactured line from Remy offers alternators that have been carefully rebuilt to meet original equipment manufacturer (OEM) specifications. This ensures that the alternator 20583 delivers dependable performance and durability comparable to new units. Each unit undergoes thorough testing and includes necessary components such as the pulley and internal voltage regulator, making it a practical choice for restoring charging system functionality in Buick Reatta, Riviera, and Oldsmobile Toronado models.

Product Details and Specifications

This Remy alternator features a 124-amp output suitable for the electrical demands of the Buick Reatta, Riviera, and Oldsmobile Toronado. The external fan design aids in heat dissipation, helping maintain optimal operating temperatures. The included pulley and clockwise rotation direction ensure compatibility with the original setup. The internal voltage regulator maintains consistent voltage levels, protecting your vehicle’s electrical system from fluctuations.

Common Applications and Issues Addressed

  • Restores charging system in Buick Reatta, Riviera, and Oldsmobile Toronado
  • Resolves battery drain caused by faulty alternator output
  • Eliminates dimming or flickering headlights due to inconsistent voltage
  • Fixes starting problems related to insufficient electrical power
  • Replaces worn or damaged alternator components to prevent breakdowns

Installation Notes and Tips

Installation of the Remy 20583 alternator is straightforward due to the included pulley and OE-compatible design. Ensure the alternator rotation direction matches the original unit (clockwise) to avoid mechanical issues. Verify electrical connections and belt tension during installation to maintain proper function. It is recommended to test the charging system after installation to confirm correct operation.

Quality Assurance and Warranty

Remy’s Premium Remanufactured alternators undergo comprehensive testing to meet OE performance standards. This alternator is remanufactured using quality components and includes an internal voltage regulator for consistent operation. Warranty coverage details should be confirmed with the distributor or retailer, ensuring peace of mind with your purchase.

BrandRemy
Part Number20583
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 3 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
1991BuickReatta3.8LV6N/Aw/11:00 Alt Plug; 124 Amps; Premium Remanufactured
1991BuickRiviera3.8LV6N/Aw/11:00 Alt Plug; 124 Amps; Premium Remanufactured
1991OldsmobileToronado3.8LV6N/Awo/Heated Windshield; 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:

1046319210463297104800111101590

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