OE Quality
60-Day Returns

Remy 21433 Alternator
Reliable Alternator for Chevrolet, GMC, and Isuzu Vehicles
The Remy Premium Remanufactured Alternator 21433 is designed to restore your vehicle's charging system with dependable performance. Engineered for select Chevrolet S10, GMC Sonoma, and Isuzu Hombre models, this alternator meets strict remanufacturing standards to ensure consistent power delivery.
- 100 Ampere rating for stable electrical output
- Internal fan type for efficient cooling
- Remanufactured to meet OEM specifications
- Includes pulley for straightforward installation
- Clockwise rotation direction compatible with specified vehicles
- 12 Volt system with internal voltage regulator
- OE manufacturer: Delco/Delphi
About the Premium Remanufactured Product Line
The Premium Remanufactured line by Remy focuses on restoring original equipment components to meet or exceed factory standards. This alternator undergoes rigorous testing and quality checks to ensure reliable operation and longevity. Using genuine OE manufacturer parts, such as those from Delco/Delphi, the Premium Remanufactured alternators provide a cost-effective solution without compromising performance.
Product Details and Specifications
This Remy alternator, part number 21433, is specifically designed for 12-volt electrical systems found in Chevrolet S10, GMC Sonoma, and Isuzu Hombre trucks. It features an internal fan that helps maintain optimal operating temperatures and an internal voltage regulator to maintain consistent voltage output. The included pulley and clockwise rotation direction ensure compatibility with the original vehicle setup, simplifying replacement and reducing installation time.
Common Applications and Problem Resolution
- Restores charging system functionality in Chevrolet S10, GMC Sonoma, and Isuzu Hombre
- Replaces alternators with insufficient amperage output or electrical failures
- Solves issues related to battery drainage or dimming lights
- Addresses alternator pulley or fan failures
- Corrects voltage regulation problems causing electrical system instability
Installation Notes and Tips
Before installation, verify vehicle compatibility with Chevrolet S10, GMC Sonoma, or Isuzu Hombre models. Ensure the battery is disconnected to prevent electrical shorts. The included pulley matches original equipment specifications, allowing for direct replacement without modification. Confirm the alternator’s clockwise rotation direction aligns with your vehicle’s requirements. After installation, test the charging system to verify proper voltage output and operation.
Quality Assurance and Warranty
Remy’s Premium Remanufactured alternators undergo comprehensive testing to meet OEM standards. This part is remanufactured using quality components from the original equipment manufacturer Delco/Delphi, ensuring durability and reliable performance. Warranty coverage details should be confirmed with the distributor or installer, as they may vary by region.
| Brand | Remy |
| Part Number | 21433 |
| Position | Premium Remanufactured |
| Amperage Rating | 100 |
| 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 15 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2003 | Chevrolet | S10 | 2.2L | L4 | N/A | 100 Amps, fits various alternator models.; Premium Remanufactured |
| 2003 | GMC | Sonoma | 2.2L | L4 | N/A | 100 Amps, fits various alternator models.; Premium Remanufactured |
| 2002 | Chevrolet | S10 | 2.2L | L4 | N/A | 100 Amps, fits various alternator models.; Premium Remanufactured |
| 2002 | GMC | Sonoma | 2.2L | L4 | N/A | 100 Amps, fits various alternator models.; Premium Remanufactured |
| 2001 | Chevrolet | S10 | 2.2L | L4 | N/A | 100 Amps, fits various alternator models.; Premium Remanufactured |
| 2001 | GMC | Sonoma | 2.2L | L4 | N/A | 100 Amps, fits various alternator models.; Premium Remanufactured |
| 2000 | Chevrolet | S10 | 2.2L | L4 | N/A | 100 Amps, fits various alternator models.; Premium Remanufactured |
| 2000 | GMC | Sonoma | 2.2L | L4 | N/A | 100 Amps, fits various alternator models.; Premium Remanufactured |
| 2000 | Isuzu | Hombre | 2.2L | L4 | N/A | 100 Amps, fits various alternator models.; Premium Remanufactured |
| 1999 | Chevrolet | S10 | 2.2L | L4 | N/A | 100 Amps, fits various alternator models.; Premium Remanufactured |
| 1999 | GMC | Sonoma | 2.2L | L4 | N/A | 100 Amps, fits various alternator models.; Premium Remanufactured |
| 1999 | Isuzu | Hombre | 2.2L | L4 | N/A | 100 Amps, fits various alternator models.; Premium Remanufactured |
| 1998 | Chevrolet | S10 | 2.2L | L4 | N/A | 100 Amps, fits various alternator models.; Premium Remanufactured |
| 1998 | GMC | Sonoma | 2.2L | L4 | N/A | 100 Amps, fits various alternator models.; Premium Remanufactured |
| 1998 | Isuzu | Hombre | 2.2L | L4 | N/A | 100 Amps, fits various alternator models.; 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.