Part #: 12440

Remy 12440 Alternator

Premium Remanufactured
38 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Premium Remanufactured
Fitment: BMW, 325Ci, 330Ci, 325i, 325xi, 330i, 330xi, and Z4
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Reliable Alternator for BMW 3 Series and Z4 Models

The Remy Premium Remanufactured Alternator 12440 is designed to restore your BMW's charging system performance. Engineered to meet OE specifications, this alternator is compatible with various BMW 3 Series and Z4 models, providing dependable 12-volt power with a 120-amp rating.

  • 120 Amperage Rating for consistent electrical output
  • Internal fan type for efficient cooling
  • Remanufactured to OE standards by Bosch
  • Includes pulley for straightforward installation
  • Clockwise rotation direction
  • Internal voltage regulator for stable voltage control

About the Premium Remanufactured Product Line

The Premium Remanufactured line from Remy offers alternators that have been carefully rebuilt to meet or exceed original equipment manufacturer specifications. This process includes thorough testing and replacement of worn components, ensuring reliable performance and longevity. The 12440 alternator benefits from this rigorous remanufacturing process, making it a practical choice for maintaining your BMW's electrical system.

Detailed Product Description

This Remy alternator 12440 features a 120-amp output suitable for the electrical demands of BMW 325Ci, 325i, 325xi, 330Ci, 330i, 330xi, and Z4 models. The internal fan design helps maintain optimal operating temperatures, while the internal voltage regulator ensures consistent voltage delivery to your vehicle's electrical components. The included pulley simplifies installation, and the clockwise rotation matches the original equipment setup. Manufactured by Bosch and remanufactured by Remy, this alternator combines quality components with a tested rebuild process.

Common Issues Addressed by This Alternator

  • Battery not charging properly or draining quickly
  • Dim or flickering headlights and dashboard lights
  • Electrical system warning lights illuminated on the dashboard
  • Unusual noises from the engine bay related to the charging system
  • Vehicle stalling or difficulty starting due to insufficient electrical power

Installation Notes and Tips

Before installation, verify compatibility with your specific BMW model and engine type. Disconnect the battery to prevent electrical shorts. The included pulley allows for direct replacement without additional parts. Ensure the alternator is mounted securely and all electrical connections are clean and tight. After installation, test the charging system voltage to confirm proper operation.

Quality Assurance and Warranty

Remy Premium Remanufactured alternators undergo comprehensive testing to meet strict quality standards. Each unit is rebuilt using OE components, including the Bosch-manufactured core, and tested for amperage output and voltage regulation. While specific warranty details may vary, Remy typically offers coverage against defects in materials and workmanship to provide confidence in product reliability.

BrandRemy
Part Number12440
PositionPremium Remanufactured
Amperage Rating120
Fan TypeInternal
New or RemanufacturedRemanufactured
OE ManufacturerBosch
Pulley IncludedYes
Rotation DirectionClockwise
Voltage (V)12
Voltage Regulator TypeInternal

This part fits 38 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2006BMW325Ci2.5LL6N/Awo/Air Duct; Bosch Unit; Std; 120 Amps; Premium Remanufactured
2006BMW330Ci3.0LL6N/Awo/Air Duct; Bosch Unit; Std; 120 Amps; Premium Remanufactured
2005BMW325Ci2.5LL6N/Awo/Air Duct; Bosch Unit; Std; 120 Amps; Premium Remanufactured
2005BMW325i2.5LL6N/Awo/Air Duct; Bosch Unit; Std; 120 Amps; Premium Remanufactured
2005BMW325xi2.5LL6N/Awo/Air Duct; Bosch Unit; Std; 120 Amps; Premium Remanufactured
2005BMW330Ci3.0LL6N/Awo/Air Duct; Bosch Unit; Std; 120 Amps; Premium Remanufactured
2005BMW330i3.0LL6N/Awo/Air Duct; Bosch Unit; Std; 120 Amps; Premium Remanufactured
2005BMW330xi3.0LL6N/Awo/Air Duct; Bosch Unit; Std; 120 Amps; Premium Remanufactured
2005BMWZ42.5LL6N/A120 Amps - 120 amp power output rating; Premium Remanufactured
2005BMWZ43.0LL6N/A120 Amps - 120 amp power output rating; Premium Remanufactured
2004BMW325Ci2.5LL6N/Awo/Air Duct; Bosch Unit; Std; 120 Amps; Premium Remanufactured
2004BMW325i2.5LL6N/Awo/Air Duct; Bosch Unit; Std; 120 Amps; Premium Remanufactured
2004BMW325xi2.5LL6N/Awo/Air Duct; Bosch Unit; Std; 120 Amps; Premium Remanufactured
2004BMW330Ci3.0LL6N/Awo/Air Duct; Bosch Unit; Std; 120 Amps; Premium Remanufactured
2004BMW330i3.0LL6N/Awo/Air Duct; Bosch Unit; Std; 120 Amps; Premium Remanufactured
2004BMW330xi3.0LL6N/Awo/Air Duct; Bosch Unit; Std; 120 Amps; Premium Remanufactured
2004BMWZ42.5LL6N/A120 Amps - 120 amp power output rating; Premium Remanufactured
2004BMWZ43.0LL6N/A120 Amps - 120 amp power output rating; Premium Remanufactured
2003BMW325Ci2.5LL6N/A120 Amps; Premium Remanufactured
2003BMW325i2.5LL6N/A120 Amps; Premium Remanufactured
2003BMW325xi2.5LL6N/A120 Amps; Premium Remanufactured
2003BMW330Ci3.0LL6N/A120 Amps; Premium Remanufactured
2003BMW330i3.0LL6N/A120 Amps; Premium Remanufactured
2003BMW330xi3.0LL6N/A120 Amps; Premium Remanufactured
2003BMWZ42.5LL6N/A120 Amps - 120 amp power output rating; Premium Remanufactured
2003BMWZ43.0LL6N/A120 Amps - 120 amp power output rating; Premium Remanufactured
2002BMW325Ci2.5LL6N/A120 Amps; Premium Remanufactured
2002BMW325i2.5LL6N/A120 Amps; Premium Remanufactured
2002BMW325xi2.5LL6N/A120 Amps; Premium Remanufactured
2002BMW330Ci3.0LL6N/A120 Amps; Premium Remanufactured
2002BMW330i3.0LL6N/A120 Amps; Premium Remanufactured
2002BMW330xi3.0LL6N/A120 Amps; Premium Remanufactured
2001BMW325Ci2.5LL6N/A120 Amps; Premium Remanufactured
2001BMW325i2.5LL6N/A120 Amps; Premium Remanufactured
2001BMW325xi2.5LL6N/A120 Amps; Premium Remanufactured
2001BMW330Ci3.0LL6N/A120 Amps; Premium Remanufactured
2001BMW330i3.0LL6N/A120 Amps; Premium Remanufactured
2001BMW330xi3.0LL6N/A120 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:

0-124-515-10512-31-7-519-61812-31-7-519-620

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.