OE Quality
60-Day Returns

Remy 20236 Alternator
Reliable Alternator Replacement for Buick, Chevrolet, Oldsmobile, and Pontiac
The Remy Premium Remanufactured Alternator 20236 is designed to restore charging system performance in select GM vehicles. Engineered to meet OE specifications, this 12-volt alternator provides consistent 85-amp output with an internal voltage regulator and clockwise rotation.
- Amperage Rating: 85 amps for stable electrical output
- Fan Type: External fan for effective cooling
- Remanufactured to OE standards by Remy
- OE Manufacturer: Delco/Delphi
- Pulley Included for direct replacement
- Rotation Direction: Clockwise
- Voltage: 12 volts with internal voltage regulator
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 units. Each alternator undergoes thorough testing and quality checks, making it a practical choice for restoring the charging system in compatible Buick, Chevrolet, Oldsmobile, and Pontiac models.
Detailed Product Description
This Remy alternator (part number 20236) is a remanufactured unit designed specifically for 12-volt electrical systems. It features an 85-amp output capacity suitable for a range of GM vehicles including the Buick Century, Chevrolet Malibu, Oldsmobile Cutlass Ciera, Pontiac Grand Prix, and others. The external fan design helps maintain optimal operating temperatures, while the internal voltage regulator ensures consistent voltage delivery. The included pulley and clockwise rotation match original equipment specifications, facilitating straightforward installation.
Common Applications and Issues Addressed
- Replacement for alternators failing to charge the battery properly
- Fixes dim or flickering dashboard and headlights
- Resolves battery warning light illumination
- Eliminates electrical system irregularities caused by voltage fluctuations
- Restores proper function to vehicles experiencing frequent battery drain
Installation Notes and Tips
- Verify vehicle compatibility with Buick, Chevrolet, Oldsmobile, and Pontiac models listed
- Ensure the alternator rotation direction is clockwise to match original unit
- Check that the pulley is properly aligned and secured during installation
- Disconnect the battery before removal and installation to prevent electrical shorts
- Test charging system after installation to confirm proper operation
Quality Assurance and Warranty
Remy 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 coverage against defects in materials and workmanship to provide confidence in product reliability.
| Brand | Remy |
| Part Number | 20236 |
| Position | Premium Remanufactured |
| Amperage Rating | 85 |
| 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 25 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 1985 | Buick | Century | 3.0L | V6 | N/A | w/AC; Std; 85 Amps; Premium Remanufactured |
| 1985 | Oldsmobile | 98 | 3.0L | V6 | N/A | Std; 85 Amps; Premium Remanufactured |
| 1985 | Oldsmobile | Cutlass Ciera | 3.0L | V6 | N/A | w/AC; 85 Amps; Premium Remanufactured |
| 1984 | Buick | Century | 3.0L | V6 | N/A | w/AC; Std; 85 Amps; Premium Remanufactured |
| 1984 | Oldsmobile | Cutlass Ciera | 3.0L | V6 | N/A | w/AC; Std; 85 Amps; Premium Remanufactured |
| 1983 | Buick | Century | 4.3L | V6 | N/A | wo/Gauges; w/AC; 85 Amps; Premium Remanufactured |
| 1983 | Buick | Century | 3.0L | V6 | N/A | w/AC; Opt; 85 Amps; Premium Remanufactured |
| 1983 | Buick | Century | 2.5L | L4 | N/A | Opt HD; 85 Amps; Premium Remanufactured |
| 1983 | Chevrolet | Celebrity | 4.3L | V6 | N/A | w/AC; 85 Amps; Premium Remanufactured |
| 1983 | Chevrolet | El Camino | 5.0L | V8 | N/A | w/AC; Opt HD; 85 Amps; Premium Remanufactured |
| 1983 | Chevrolet | Malibu | 5.0L | V8 | N/A | w/AC; Opt HD; 85 Amps; Premium Remanufactured |
| 1983 | Chevrolet | Monte Carlo | 5.0L | V8 | N/A | w/AC; Opt HD; 85 Amps; Premium Remanufactured |
| 1983 | Oldsmobile | Cutlass Ciera | 3.0L | V6 | N/A | w/AC; Opt HD; 85 Amps; Premium Remanufactured |
| 1983 | Oldsmobile | Cutlass Ciera | 4.3L | V6 | N/A | wo/Gauges; w/AC; 85 Amps; Premium Remanufactured |
| 1983 | Pontiac | 6000 | 4.3L | V6 | N/A | wo/Gauges; w/AC; 85 Amps; Premium Remanufactured |
| 1982 | Buick | Century | 4.3L | V6 | N/A | w/AC; 85 Amps; Premium Remanufactured |
| 1982 | Buick | Century | 3.0L | V6 | N/A | w/AC; Opt; 85 Amps; Premium Remanufactured |
| 1982 | Chevrolet | Celebrity | 4.3L | V6 | N/A | w/AC; 85 Amps; Premium Remanufactured |
| 1982 | Oldsmobile | Cutlass Ciera | 3.0L | V6 | N/A | w/AC; Opt HD; 85 Amps; Premium Remanufactured |
| 1982 | Oldsmobile | Cutlass Ciera | 4.3L | V6 | N/A | wo/Gauges; w/AC; 85 Amps; Premium Remanufactured |
| 1982 | Pontiac | 6000 | 4.3L | V6 | N/A | w/AC; 85 Amps; Premium Remanufactured |
| 1981 | Buick | Century | 4.3L | V8 | N/A | Opt HD; 85 Amps; Premium Remanufactured |
| 1981 | Buick | Regal | 4.3L | V8 | N/A | Opt HD; 85 Amps; Premium Remanufactured |
| 1980 | Buick | Century | 4.3L | V8 | N/A | Opt HD; 85 Amps; Premium Remanufactured |
| 1980 | Buick | Regal | 4.3L | V8 | N/A | Opt HD; 85 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.