OE Quality
60-Day Returns

Remy 12281 Alternator
Reliable Alternator for BMW 3 Series and X5 Models
The Remy Premium Remanufactured Alternator 12281 is designed to restore your BMW's charging system performance. Engineered with a 120-amp rating and internal fan, this alternator ensures consistent power delivery for models like the BMW 325i, 330xi, and X5.
- 120 Amperage Rating for stable electrical output
- Internal fan type for efficient cooling
- Remanufactured to meet OEM standards
- Includes pulley for direct replacement
- Clockwise rotation direction
- 12 Volt system compatibility
- Internal voltage regulator for reliable voltage control
- OE Manufacturer: Bosch
About the Premium Remanufactured Product Line
The Premium Remanufactured line by Remy offers alternators that have been carefully rebuilt to meet strict quality and performance standards. This ensures that the alternator 12281 provides dependable operation comparable to new units while supporting sustainability through remanufacturing. The line focuses on delivering components with verified OE manufacturer parts, such as Bosch, to maintain vehicle integrity.
Product Details and Specifications
This Remy alternator features a 120 amp output suitable for BMW vehicles requiring robust electrical support. The internal fan design helps maintain optimal operating temperatures, reducing wear and extending service life. The included pulley allows for straightforward installation without additional parts. Its clockwise rotation and internal voltage regulator are matched to BMW's electrical system requirements, ensuring compatibility with models including the 325Ci, 330i, 525i, 530i, Z3, and X5.
Common Applications and Problem Resolution
- Replaces failing or weak alternators causing battery drain
- Solves intermittent electrical issues and dimming lights
- Restores charging system functionality after voltage regulator failure
- Addresses pulley wear or damage affecting belt operation
- Improves engine starting reliability in BMW 3 Series and X5 vehicles
Installation Notes and Tips
Ensure battery is disconnected before removal to prevent electrical shorts. Verify the clockwise rotation direction matches your vehicle’s original alternator. Use the included pulley for a direct fit and confirm all electrical connections are secure. It is recommended to inspect the drive belt and tensioner during installation for optimal performance.
Quality Assurance and Warranty
The Remy Premium Remanufactured Alternator 12281 is built to meet or exceed OEM specifications, incorporating Bosch components for trusted quality. While specific warranty details are not provided here, Remy products typically come with a limited warranty covering defects in materials and workmanship. Consult product documentation for exact warranty terms.
| Brand | Remy |
| Part Number | 12281 |
| Position | Premium Remanufactured |
| Amperage Rating | 120 |
| Fan Type | Internal |
| New or Remanufactured | Remanufactured |
| OE Manufacturer | Bosch |
| Pulley Included | Yes |
| Rotation Direction | Clockwise |
| Voltage (V) | 12 |
| Voltage Regulator Type | Internal |
This part fits 48 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2006 | BMW | 325Ci | 2.5L | L6 | N/A | w/Air Duct; Bosch Unit; 120 Amps; Premium Remanufactured |
| 2006 | BMW | 330Ci | 3.0L | L6 | N/A | w/Air Duct; Bosch Unit; 120 Amps; Premium Remanufactured |
| 2006 | BMW | X5 | 3.0L | L6 | N/A | Bosch Unit; 120 Amps; Premium Remanufactured |
| 2005 | BMW | 325Ci | 2.5L | L6 | N/A | w/Air Duct; Bosch Unit; 120 Amps; Premium Remanufactured |
| 2005 | BMW | 325i | 2.5L | L6 | N/A | w/Air Duct; Bosch Unit; 120 Amps; Premium Remanufactured |
| 2005 | BMW | 325xi | 2.5L | L6 | N/A | w/Air Duct; Bosch Unit; 120 Amps; Premium Remanufactured |
| 2005 | BMW | 330Ci | 3.0L | L6 | N/A | w/Air Duct; Bosch Unit; 120 Amps; Premium Remanufactured |
| 2005 | BMW | 330i | 3.0L | L6 | N/A | w/Air Duct; Bosch Unit; 120 Amps; Premium Remanufactured |
| 2005 | BMW | 330xi | 3.0L | L6 | N/A | w/Air Duct; Bosch Unit; 120 Amps; Premium Remanufactured |
| 2005 | BMW | X5 | 3.0L | L6 | N/A | Bosch Unit; 120 Amps; Premium Remanufactured |
| 2004 | BMW | 325Ci | 2.5L | L6 | N/A | w/Air Duct; Bosch Unit; 120 Amps; Premium Remanufactured |
| 2004 | BMW | 325i | 2.5L | L6 | N/A | w/Air Duct; Bosch Unit; 120 Amps; Premium Remanufactured |
| 2004 | BMW | 325xi | 2.5L | L6 | N/A | w/Air Duct; Bosch Unit; 120 Amps; Premium Remanufactured |
| 2004 | BMW | 330Ci | 3.0L | L6 | N/A | w/Air Duct; Bosch Unit; 120 Amps; Premium Remanufactured |
| 2004 | BMW | 330i | 3.0L | L6 | N/A | w/Air Duct; Bosch Unit; 120 Amps; Premium Remanufactured |
| 2004 | BMW | 330xi | 3.0L | L6 | N/A | w/Air Duct; Bosch Unit; 120 Amps; Premium Remanufactured |
| 2004 | BMW | X5 | 3.0L | L6 | N/A | Bosch Unit; 120 Amps; Premium Remanufactured |
| 2003 | BMW | 325Ci | 2.5L | L6 | N/A | Bosch Unit; 120 Amps; Premium Remanufactured |
| 2003 | BMW | 325i | 2.5L | L6 | N/A | Bosch Unit; 120 Amps; Premium Remanufactured |
| 2003 | BMW | 325xi | 2.5L | L6 | N/A | Bosch Unit; 120 Amps; Premium Remanufactured |
| 2003 | BMW | 330Ci | 3.0L | L6 | N/A | Bosch Unit; 120 Amps; Premium Remanufactured |
| 2003 | BMW | 330i | 3.0L | L6 | N/A | Bosch Unit; 120 Amps; Premium Remanufactured |
| 2003 | BMW | 330xi | 3.0L | L6 | N/A | Bosch Unit; 120 Amps; Premium Remanufactured |
| 2003 | BMW | 525i | 2.5L | L6 | N/A | Bosch Unit; 120 Amps; Premium Remanufactured |
| 2003 | BMW | 530i | 3.0L | L6 | N/A | Bosch Unit; 120 Amps; Premium Remanufactured |
| 2003 | BMW | X5 | 3.0L | L6 | N/A | Bosch Unit; 120 Amps; Premium Remanufactured |
| 2002 | BMW | 325Ci | 2.5L | L6 | N/A | Bosch Unit; 120 Amps; Premium Remanufactured |
| 2002 | BMW | 325i | 2.5L | L6 | N/A | Bosch Unit; 120 Amps; Premium Remanufactured |
| 2002 | BMW | 325xi | 2.5L | L6 | N/A | Bosch Unit; 120 Amps; Premium Remanufactured |
| 2002 | BMW | 330Ci | 3.0L | L6 | N/A | Bosch Unit; 120 Amps; Premium Remanufactured |
| 2002 | BMW | 330i | 3.0L | L6 | N/A | Bosch Unit; 120 Amps; Premium Remanufactured |
| 2002 | BMW | 330xi | 3.0L | L6 | N/A | Bosch Unit; 120 Amps; Premium Remanufactured |
| 2002 | BMW | 525i | 2.5L | L6 | N/A | Bosch Unit; 120 Amps; Premium Remanufactured |
| 2002 | BMW | 530i | 3.0L | L6 | N/A | Bosch Unit; 120 Amps; Premium Remanufactured |
| 2002 | BMW | X5 | 3.0L | L6 | N/A | Bosch Unit; 120 Amps; Premium Remanufactured |
| 2002 | BMW | Z3 | 3.0L | L6 | N/A | Bosch Unit; 120 Amps; Premium Remanufactured |
| 2002 | BMW | Z3 | 2.5L | L6 | N/A | Bosch Unit; 120 Amps; Premium Remanufactured |
| 2001 | BMW | 325Ci | 2.5L | L6 | N/A | Bosch Unit; 120 Amps; Premium Remanufactured |
| 2001 | BMW | 325i | 2.5L | L6 | N/A | Bosch Unit; 120 Amps; Premium Remanufactured |
| 2001 | BMW | 325xi | 2.5L | L6 | N/A | Bosch Unit; 120 Amps; Premium Remanufactured |
| 2001 | BMW | 330Ci | 3.0L | L6 | N/A | Bosch Unit; 120 Amps; Premium Remanufactured |
| 2001 | BMW | 330i | 3.0L | L6 | N/A | Bosch Unit; 120 Amps; Premium Remanufactured |
| 2001 | BMW | 330xi | 3.0L | L6 | N/A | Bosch Unit; 120 Amps; Premium Remanufactured |
| 2001 | BMW | 525i | 2.5L | L6 | N/A | Bosch Unit; 120 Amps; Premium Remanufactured |
| 2001 | BMW | 530i | 3.0L | L6 | N/A | Bosch Unit; 120 Amps; Premium Remanufactured |
| 2001 | BMW | X5 | 3.0L | L6 | N/A | Bosch Unit; 120 Amps; Premium Remanufactured |
| 2001 | BMW | Z3 | 3.0L | L6 | N/A | Bosch Unit; 120 Amps; Premium Remanufactured |
| 2001 | BMW | Z3 | 2.5L | L6 | N/A | Bosch Unit; 120 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.