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Remy 20121 Alternator
Reliable Alternator for Buick, Chevrolet, and Pontiac Vehicles
The Remy Premium Remanufactured Alternator 20121 is designed to restore charging system performance in select Buick, Chevrolet, and Pontiac models. Engineered to meet OE specifications, this 12-volt alternator delivers consistent 105-amp output with an internal fan and voltage regulator for efficient operation.
- Amperage Rating: 105 amps for stable electrical output
- Internal fan type for effective cooling
- Remanufactured to OE standards by Remy
- Includes pulley for direct replacement
- Clockwise rotation direction
- 12-volt system compatibility
- Internal voltage regulator for simplified installation
- OE Manufacturer: Delco/Delphi
About the Premium Remanufactured Product Line
The Premium Remanufactured line from Remy offers alternators that have been carefully rebuilt to meet original equipment manufacturer specifications. This ensures reliable performance and durability comparable to new parts while providing a cost-effective solution. The 20121 alternator benefits from this process, making it suitable for restoring charging system functionality in compatible vehicles.
Product Details and Specifications
This alternator features a 105-amp amperage rating, suitable for maintaining electrical system demands in Buick Century, Chevrolet Lumina, and Pontiac Grand Prix models, among others. The internal fan design helps maintain optimal operating temperatures, while the internal voltage regulator simplifies installation and reduces the need for additional components. The included pulley and clockwise rotation direction ensure compatibility with the original setup, facilitating a straightforward replacement process.
Common Applications and Problem Resolution
- Restores charging system in Buick Century, Chevrolet Lumina, Pontiac Grand Prix, and Monte Carlo
- Replaces failing or weak alternators causing battery drain
- Solves issues with dimming lights or electrical accessory malfunctions
- Addresses battery warning light illumination due to charging faults
- Eliminates irregular voltage output affecting vehicle electronics
Installation Notes and Tips
Installation of the Remy 20121 alternator is straightforward due to the included pulley and internal voltage regulator. Ensure the alternator rotation direction matches the original (clockwise) to avoid compatibility issues. Verify electrical connections and belt tension during installation to maintain optimal performance. This alternator is compatible with 12-volt systems commonly found in the specified Buick, Chevrolet, and Pontiac models.
Quality Assurance and Warranty
Remy’s Premium Remanufactured alternators undergo rigorous testing to meet OE standards, ensuring reliable operation and longevity. While specific warranty details are not provided here, Remy products typically come with a limited warranty covering defects in materials and workmanship. Refer to the product documentation for exact warranty terms.
| Brand | Remy |
| Part Number | 20121 |
| Position | Premium Remanufactured |
| Amperage Rating | 105 |
| Fan Type | Internal |
| New or Remanufactured | Remanufactured |
| OE Manufacturer | Delco/Delphi |
| Pulley Included | Yes |
| Rotation Direction | Clockwise |
| Voltage (V) | 12 |
| Voltage Regulator Type | Internal |
This part fits 7 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 1999 | Chevrolet | Lumina | 3.1L | V6 | N/A | Not compatible with vehicles with less than 105 amps capacity.; Premium Remanufactured |
| 1999 | Chevrolet | Monte Carlo | 3.1L | V6 | N/A | Not compatible with vehicles with less than 105 amps capacity.; Premium Remanufactured |
| 1998 | Buick | Century | 3.1L | V6 | N/A | Not compatible with vehicles with less than 105 amps capacity.; Premium Remanufactured |
| 1998 | Chevrolet | Lumina | 3.1L | V6 | N/A | Not compatible with vehicles with less than 105 amps capacity.; Premium Remanufactured |
| 1998 | Chevrolet | Monte Carlo | 3.1L | V6 | N/A | Not compatible with vehicles with less than 105 amps capacity.; Premium Remanufactured |
| 1998 | Pontiac | Grand Prix | 3.1L | V6 | N/A | Not compatible with vehicles with less than 105 amps capacity.; Premium Remanufactured |
| 1997 | Buick | Century | 3.1L | V6 | N/A | w/ Option Code K68; 105 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:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.