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Remy 20381 Alternator
Reliable Alternator for Buick, Cadillac, Chevrolet, Oldsmobile, and Pontiac
The Remy Premium Remanufactured Alternator 20381 is designed to restore charging system performance in select GM vehicles. Engineered with a 105-amp rating and an internal voltage regulator, this alternator supports consistent electrical output for models like the Buick LeSabre and Chevrolet Caprice.
- 105 Amperage Rating for steady electrical supply
- External fan type for effective cooling
- Remanufactured to meet OE standards
- Includes pulley for direct replacement
- Clockwise rotation direction
- 12 Volt system compatibility
- Internal voltage regulator for simplified installation
- Superseded part number 20397 for updated fitment
About the Premium Remanufactured Product Line
The Premium Remanufactured line by Remy offers alternators that have been carefully rebuilt to meet or exceed original equipment specifications. This process includes thorough testing and replacement of worn components, ensuring reliable performance and durability. The 20381 alternator benefits from this quality-focused remanufacturing approach, providing a cost-effective alternative to new units without compromising functionality.
Detailed Product Description
This Remy alternator, part number 20381, is designed for 12-volt electrical systems and delivers a 105-amp output suitable for a range of GM vehicles including the Pontiac Safari and Oldsmobile Custom Cruiser. Featuring an external fan, it maintains optimal operating temperatures during vehicle operation. The clockwise rotation and included pulley allow for straightforward installation in compatible models. The internal voltage regulator simplifies wiring and reduces the need for additional components. This alternator is a remanufactured unit originally produced by Delco/Delphi, ensuring compatibility and performance aligned with original equipment.
Common Applications and Issues Addressed
- Restores charging system functionality in Buick Brougham and Cadillac models
- Resolves dimming or flickering headlights due to alternator failure
- Eliminates battery drain caused by insufficient alternator output
- Fixes electrical system warning lights related to charging problems
- Replaces worn or damaged alternators in Chevrolet Caprice and Pontiac Safari
Installation Notes and Tips
Ensure the vehicle’s battery is disconnected before beginning installation. Verify the clockwise rotation direction matches the original alternator. The included pulley allows for direct replacement without additional parts. Confirm compatibility with your specific make and model, such as the Oldsmobile LeSabre or Buick Brougham, to avoid fitment issues. Proper torque specifications should be followed when securing the alternator to prevent damage.
Quality Assurance and Warranty
This remanufactured alternator undergoes rigorous testing to meet OEM performance standards. Manufactured under the Premium Remanufactured line, it offers a reliable solution backed by Remy’s quality control processes. Please refer to the warranty information provided by the distributor or retailer for coverage details.
| Brand | Remy |
| Part Number | 20381 |
| Position | Premium Remanufactured |
| Amperage Rating | 105 |
| Fan Type | External |
| New or Remanufactured | Remanufactured |
| OE Manufacturer | Delco/delphi |
| Part Status | Superseded to 20397 |
| Pulley Included | Yes |
| Rotation Direction | Clockwise |
| Voltage (V) | 12 |
| Voltage Regulator Type | Internal |
This part fits 14 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 1990 | Buick | LeSabre | 5.0L | V8 | N/A | 105 Amps; Superseded; Premium Remanufactured |
| 1990 | Cadillac | Brougham | 5.0L | V8 | N/A | 105 Amps; Superseded; Premium Remanufactured |
| 1990 | Chevrolet | Caprice | 5.0L | V8 | N/A | 105 Amps; Superseded; Premium Remanufactured |
| 1990 | Oldsmobile | Custom Cruiser | 5.0L | V8 | N/A | 105 Amps; Superseded; Premium Remanufactured |
| 1989 | Buick | LeSabre | 5.0L | V8 | N/A | 105 Amps; Superseded; Premium Remanufactured |
| 1989 | Cadillac | Brougham | 5.0L | V8 | N/A | 105 Amps; Superseded; Premium Remanufactured |
| 1989 | Chevrolet | Caprice | 5.0L | V8 | N/A | 105 Amps; Superseded; Premium Remanufactured |
| 1989 | Oldsmobile | Custom Cruiser | 5.0L | V8 | N/A | 105 Amps; Superseded; Premium Remanufactured |
| 1989 | Pontiac | Safari | 5.0L | V8 | N/A | 105 Amps; Superseded; Premium Remanufactured |
| 1988 | Buick | LeSabre | 5.0L | V8 | N/A | 105 Amps; Superseded; Premium Remanufactured |
| 1988 | Cadillac | Brougham | 5.0L | V8 | N/A | w/Armored Option; 105 Amps; Superseded; Premium Remanufactured |
| 1988 | Chevrolet | Caprice | 5.0L | V8 | N/A | 105 Amps; Superseded; Premium Remanufactured |
| 1988 | Oldsmobile | Custom Cruiser | 5.0L | V8 | N/A | 105 Amps; Superseded; Premium Remanufactured |
| 1988 | Pontiac | Safari | 5.0L | V8 | N/A | 105 Amps; Superseded; 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.