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Remy 20385 Alternator
Reliable Alternator for Buick, Oldsmobile, and Pontiac Vehicles
The Remy Premium Remanufactured Alternator 20385 is designed to restore charging system performance in select Buick, Oldsmobile, and Pontiac models. Engineered to meet OE specifications, this 12-volt alternator delivers consistent 105-amp output with an external fan for effective cooling.
- Amperage Rating: 105 amps for stable electrical output
- Fan Type: External fan to maintain optimal operating temperature
- Voltage: 12 volts compatible with standard automotive electrical systems
- Rotation Direction: Clockwise rotation matching original equipment
- Voltage Regulator: Internal regulator for simplified installation
- Pulley Included: Ready to install without additional parts
- OE Manufacturer: Remanufactured to Delco/Delphi standards
About the Premium Remanufactured Product Line
The Premium Remanufactured line by Remy offers alternators rebuilt to meet or exceed original equipment manufacturer (OEM) specifications. Each unit undergoes rigorous testing and quality control to ensure reliable performance and durability. This product line focuses on providing cost-effective alternatives to new parts while maintaining compatibility and function for vehicles like the Buick LeSabre, Oldsmobile Delta 88, and Pontiac Bonneville.
Product Details and Specifications
This Remy alternator, part number 20385, is a remanufactured unit designed specifically for 12-volt electrical systems. It features a clockwise rotation direction and includes an external fan to help dissipate heat during operation. The internal voltage regulator simplifies installation by eliminating the need for an external regulator. The included pulley matches original equipment specifications, ensuring proper belt alignment and tension. This alternator is compatible with Buick 98, Oldsmobile Delta 88, and Pontiac Bonneville models, providing a direct replacement for worn or failing units.
Common Applications and Problem Resolution
- Restores charging system functionality in Buick LeSabre and Oldsmobile Delta 88
- Resolves dimming headlights and electrical accessory issues
- Eliminates battery drain caused by faulty alternators in Pontiac Bonneville
- Addresses warning lights related to charging system failure
- Replaces alternators with worn bearings or damaged pulleys
Installation Notes and Tips
Ensure the vehicle battery is disconnected before beginning installation to prevent electrical shorts. Verify the clockwise rotation direction matches the original alternator. Confirm the pulley and mounting points align correctly with the vehicle’s belt system. Since this alternator includes an internal voltage regulator, no additional regulator installation is necessary. After installation, test the charging system voltage to confirm proper operation.
Quality Assurance and Warranty
Remy’s Premium Remanufactured alternators are rebuilt to meet OE standards and undergo comprehensive testing to ensure reliability. Part number 20385 is manufactured to Delco/Delphi specifications, providing consistent performance for Buick, Oldsmobile, and Pontiac vehicles. Warranty coverage details should be confirmed with the distributor or retailer at the time of purchase.
| Brand | Remy |
| Part Number | 20385 |
| Position | Premium Remanufactured |
| Amperage Rating | 105 |
| Fan Type | External |
| New or Remanufactured | Remanufactured |
| OE Manufacturer | Delco/delphi |
| Pulley Included | Yes |
| Rotation Direction | Clockwise |
| Voltage (V) | 12 |
| Voltage Regulator Type | Internal |
This part fits 12 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 1990 | Buick | LeSabre | 3.8L | V6 | N/A | Not compatible with vehicles with less than 105 amps capacity.; Premium Remanufactured |
| 1990 | Oldsmobile | 98 | 3.8L | V6 | N/A | Not compatible with vehicles with less than 105 amps capacity.; Premium Remanufactured |
| 1990 | Oldsmobile | Delta 88 | 3.8L | V6 | N/A | Not compatible with vehicles with less than 105 amps capacity.; Premium Remanufactured |
| 1990 | Pontiac | Bonneville | 3.8L | V6 | N/A | Not compatible with vehicles with less than 105 amps capacity.; Premium Remanufactured |
| 1989 | Buick | LeSabre | 3.8L | V6 | N/A | Not compatible with vehicles with less than 105 amps capacity.; Premium Remanufactured |
| 1989 | Oldsmobile | 98 | 3.8L | V6 | N/A | Not compatible with vehicles with less than 105 amps capacity.; Premium Remanufactured |
| 1989 | Oldsmobile | Delta 88 | 3.8L | V6 | N/A | Not compatible with vehicles with less than 105 amps capacity.; Premium Remanufactured |
| 1989 | Pontiac | Bonneville | 3.8L | V6 | N/A | Not compatible with vehicles with less than 105 amps capacity.; Premium Remanufactured |
| 1988 | Buick | LeSabre | 3.8L | V6 | N/A | Not compatible with vehicles with less than 105 amps capacity.; Premium Remanufactured |
| 1988 | Oldsmobile | 98 | 3.8L | V6 | N/A | Not compatible with vehicles with less than 105 amps capacity.; Premium Remanufactured |
| 1988 | Oldsmobile | Delta 88 | 3.8L | V6 | N/A | Not compatible with vehicles with less than 105 amps capacity.; Premium Remanufactured |
| 1988 | Pontiac | Bonneville | 3.8L | V6 | N/A | Not compatible with vehicles with less than 105 amps capacity.; 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.