OE Quality
60-Day Returns

Remy 20594 Alternator
Reliable Remy Alternator for Select GM Vehicles
The Remy Premium Remanufactured Alternator 20594 offers a dependable electrical charging solution for various Buick, Cadillac, Chevrolet, Oldsmobile, and Pontiac models. Designed to meet OE specifications, this 12-volt alternator ensures consistent performance and compatibility with your vehicle's electrical system.
Key Features of Remy Alternator 20594
- Amperage Rating: 140 amps for efficient power output
- External fan type for effective cooling
- Remanufactured to meet OE standards
- Includes pulley for straightforward installation
- Clockwise rotation direction
- Internal voltage regulator for stable voltage control
- Compatible with 12-volt electrical systems
- OE Manufacturer: Delco/Delphi
About the Premium Remanufactured Product Line
The Premium Remanufactured line by Remy focuses on delivering alternators that have been carefully rebuilt to meet original equipment manufacturer specifications. This process includes thorough testing and replacement of worn components, ensuring reliable operation and longevity. The 20594 alternator benefits from this rigorous remanufacturing process, providing a cost-effective alternative to new parts without compromising quality.
Detailed Product Description
This Remy alternator 20594 is engineered for select GM vehicles including Buick Caprice, Cadillac Fleetwood, Chevrolet Impala, Oldsmobile Roadmaster, Pontiac Silhouette, and others. Its 140-amp output supports the electrical demands of these models, while the external fan design helps maintain optimal operating temperatures. The included pulley and clockwise rotation direction match original equipment specifications, facilitating a direct replacement. The internal voltage regulator ensures consistent voltage delivery, protecting your vehicle’s electrical components.
Common Applications and Issues Addressed
- Restores charging system functionality in Buick Caprice and Chevrolet Impala
- Resolves dimming or flickering headlights in Cadillac Fleetwood and Pontiac Silhouette
- Eliminates battery drain issues in Oldsmobile Roadmaster and Lumina APV
- Replaces faulty alternators causing starting problems in Chevrolet Commercial Chassis
- Addresses electrical system failures in Pontiac Trans Sport
Installation Notes and Tips
- Verify vehicle compatibility with the listed makes and models before installation
- Ensure the alternator pulley aligns correctly with the belt system
- Check the rotation direction matches the original part (clockwise)
- Inspect electrical connections and clean terminals for optimal contact
- Follow manufacturer torque specifications when securing the alternator
Quality Assurance and Warranty
Remy’s Premium Remanufactured alternators undergo comprehensive testing to meet or exceed OE performance standards. Each unit is inspected for electrical output, mechanical integrity, and durability. While specific warranty details may vary, Remy typically offers a limited warranty covering defects in materials and workmanship, providing confidence in the product’s reliability.
| Brand | Remy |
| Part Number | 20594 |
| Position | Premium Remanufactured |
| Amperage Rating | 140 |
| 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 35 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 1996 | Buick | Roadmaster | 5.7L | V8 | N/A | 140 Amp Alternator; Premium Remanufactured |
| 1996 | Cadillac | Commercial Chassis | 5.7L | V8 | N/A | 140 Amp Alternator; Premium Remanufactured |
| 1996 | Cadillac | Fleetwood | 5.7L | V8 | N/A | 140 Amp Alternator; Premium Remanufactured |
| 1996 | Chevrolet | Caprice | 4.3L | V8 | N/A | 140 Amps, Option; If Needed; Premium Remanufactured |
| 1996 | Chevrolet | Caprice | 5.7L | V8 | N/A | 140 Amps, Option; If Needed; Premium Remanufactured |
| 1996 | Chevrolet | Impala | 5.7L | V8 | N/A | 140 Amps, Option; If Needed; Premium Remanufactured |
| 1995 | Buick | Roadmaster | 5.7L | V8 | N/A | 140 Amp Alternator; Premium Remanufactured |
| 1995 | Cadillac | Commercial Chassis | 5.7L | V8 | N/A | 140 Amp Alternator; Premium Remanufactured |
| 1995 | Cadillac | Fleetwood | 5.7L | V8 | N/A | 140 Amp Alternator; Premium Remanufactured |
| 1995 | Chevrolet | Caprice | 4.3L | V8 | N/A | 140 Amps, Option; If Needed; Premium Remanufactured |
| 1995 | Chevrolet | Caprice | 5.7L | V8 | N/A | 140 Amps, Option; If Needed; Premium Remanufactured |
| 1995 | Chevrolet | Impala | 5.7L | V8 | N/A | 140 Amps, Option; If Needed; Premium Remanufactured |
| 1995 | Chevrolet | Lumina APV | 3.8L | V6 | N/A | 140 Amps, Option; If Needed; Premium Remanufactured |
| 1995 | Oldsmobile | Silhouette | 3.8L | V6 | N/A | 140 Amp Alternator; Premium Remanufactured |
| 1995 | Pontiac | Trans Sport | 3.8L | V6 | N/A | 140 Amp Alternator; Premium Remanufactured |
| 1994 | Buick | Roadmaster | 5.7L | V8 | N/A | 140 Amp Alternator; Premium Remanufactured |
| 1994 | Cadillac | Commercial Chassis | 5.7L | V8 | N/A | 140 Amp Alternator; Premium Remanufactured |
| 1994 | Cadillac | Fleetwood | 5.7L | V8 | N/A | 140 Amp Alternator; Premium Remanufactured |
| 1994 | Chevrolet | Caprice | 4.3L | V8 | N/A | 140 Amps, Option; If Needed; Premium Remanufactured |
| 1994 | Chevrolet | Caprice | 5.7L | V8 | N/A | 140 Amps, Option; If Needed; Premium Remanufactured |
| 1994 | Chevrolet | Commercial Chassis | 5.7L | V8 | N/A | 140 Amps, Option; If Needed; Premium Remanufactured |
| 1994 | Chevrolet | Impala | 5.7L | V8 | N/A | 140 Amps, Option; If Needed; Premium Remanufactured |
| 1994 | Chevrolet | Lumina APV | 3.8L | V6 | N/A | 140 Amps, Option; If Needed; Premium Remanufactured |
| 1994 | Oldsmobile | Silhouette | 3.8L | V6 | N/A | 140 Amps, Option; If Needed; Premium Remanufactured |
| 1994 | Pontiac | Trans Sport | 3.8L | V6 | N/A | 140 Amps, Option; If Needed; Premium Remanufactured |
| 1993 | Cadillac | Commercial Chassis | 5.7L | V8 | N/A | 140 Amp Alternator; Premium Remanufactured |
| 1993 | Cadillac | Fleetwood | 5.7L | V8 | N/A | 140 Amp Alternator; Premium Remanufactured |
| 1993 | Chevrolet | Caprice | 5.7L | V8 | N/A | Police, Opt, 140 Amps; Premium Remanufactured |
| 1993 | Chevrolet | Commercial Chassis | 5.7L | V8 | N/A | Police, Opt, 140 Amps; Premium Remanufactured |
| 1993 | Chevrolet | Lumina APV | 3.8L | V6 | N/A | 140 Amps, Option; If Needed; Premium Remanufactured |
| 1993 | Oldsmobile | Silhouette | 3.8L | V6 | N/A | 140 Amps, Option; If Needed; Premium Remanufactured |
| 1993 | Pontiac | Trans Sport | 3.8L | V6 | N/A | 140 Amps, Option; If Needed; Premium Remanufactured |
| 1992 | Chevrolet | Lumina APV | 3.8L | V6 | N/A | 140 Amps, Option; If Needed; Premium Remanufactured |
| 1992 | Oldsmobile | Silhouette | 3.8L | V6 | N/A | 140 Amps, Option; If Needed; Premium Remanufactured |
| 1992 | Pontiac | Trans Sport | 3.8L | V6 | N/A | 140 Amp Alternator; 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.