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MPA Electrical 13986 Alternator
Reliable Alternator for BMW 325Ci, 325i, 330Ci, and Z4
The MPA Electrical Remanufactured Alternator 13986 is designed to provide consistent 12-volt electrical output for select BMW models. Engineered with quality Bosch components, this 120-amp alternator supports your vehicle's charging and starting systems effectively.
- 120 amps output for stable electrical performance
- Internal fan for efficient cooling
- 6 groove serpentine pulley compatible with BMW belt systems
- Internal voltage regulator for precise voltage control
- Clockwise rotation matching OEM specifications
- 12 volts system compatibility
- Manufactured with Bosch components for durability
Detailed Features and Specifications
This alternator, part number 13986, is remanufactured to meet the electrical demands of BMW 325Ci, 325i, 330Ci, and Z4 models. It features an internal fan that helps maintain optimal operating temperature, reducing wear and extending service life. The 6 groove serpentine pulley ensures proper belt alignment and tension, critical for smooth engine operation. With an internal voltage regulator, the alternator maintains consistent voltage output, protecting your vehicle's electrical system from fluctuations. The clockwise rotation matches the original equipment manufacturer (OEM) design, ensuring compatibility and reliable performance.
About the Remanufactured Product Line
The MPA Electrical Remanufactured line offers alternators that have been carefully rebuilt using quality components, including Bosch parts, to restore functionality to OEM standards. This approach provides a cost-effective solution for maintaining your BMW's electrical system without compromising on reliability or fitment. Each remanufactured alternator undergoes thorough testing to ensure it meets performance criteria suitable for your vehicle.
Common Applications and Problem Resolution
- Replaces failing or weak alternators in BMW 325Ci, 325i, 330Ci, and Z4
- Resolves battery charging issues and electrical system malfunctions
- Eliminates dimming headlights and electrical accessory failures
- Addresses warning lights related to charging system faults
- Prevents unexpected vehicle stalls due to electrical power loss
Installation Notes and Tips
When installing the MPA Electrical Remanufactured Alternator 13986, ensure the serpentine belt is properly aligned with the 6 groove pulley. Verify the clockwise rotation matches your vehicle’s original alternator. It is recommended to inspect the battery and electrical connections for corrosion or damage during installation. Proper torque specifications should be followed to avoid mounting issues.
Quality Assurance and Warranty
This remanufactured alternator is built with Bosch components and tested to meet strict quality standards. While specific warranty details are not provided here, remanufactured parts typically come with a limited warranty covering defects in materials and workmanship. Consult your supplier for exact warranty terms related to part number 13986.
| Brand | MPA Electrical |
| Part Number | 13986 |
| Position | Remanufactured |
| Amps | 120 Amps |
| Clock | 2:00 |
| Fan | Internal |
| Manufacturer | Bosch |
| Pulley | 6 Groove Serpentine |
| Regulator | Internal |
| Rotation | Clockwise |
| Volts | 12 Volts |
This part fits 23 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2006 | BMW | 325Ci | 2.5L | L6 | N/A | wo/ Air Duct, w/ Bosch 120 amp alt., w/ Oval Connector; Remanufactured |
| 2006 | BMW | 330Ci | 3.0L | L6 | N/A | wo/ Air Duct, w/ Bosch 120 amp alt., w/ Oval Connector; Remanufactured |
| 2005 | BMW | 325Ci | 2.5L | L6 | N/A | wo/ Air Duct, w/ Bosch 120 amp alt., w/ Oval Connector; Remanufactured |
| 2005 | BMW | 325i | 2.5L | L6 | N/A | w/ Bosch 120 amp alt., w/ Oval Connector; Remanufactured |
| 2005 | BMW | 330Ci | 3.0L | L6 | N/A | wo/ Air Duct, w/ Bosch 120 amp alt., w/ Oval Connector; Remanufactured |
| 2005 | BMW | Z4 | 3.0L | L6 | N/A | Remanufactured |
| 2005 | BMW | Z4 | 2.5L | L6 | N/A | Remanufactured |
| 2004 | BMW | 325Ci | 2.5L | L6 | N/A | wo/ Air Duct, w/ Bosch 120 amp alt., w/ Oval Connector; Remanufactured |
| 2004 | BMW | 325i | 2.5L | L6 | N/A | w/ Bosch 120 amp alt., w/ Oval Connector; Remanufactured |
| 2004 | BMW | 330Ci | 3.0L | L6 | N/A | wo/ Air Duct, w/ Bosch 120 amp alt., w/ Oval Connector; Remanufactured |
| 2004 | BMW | Z4 | 3.0L | L6 | N/A | Remanufactured |
| 2004 | BMW | Z4 | 2.5L | L6 | N/A | Remanufactured |
| 2003 | BMW | 325Ci | 2.5L | L6 | N/A | wo/ Air Duct, w/ Bosch 120 amp alt., w/ Oval Connector; Remanufactured |
| 2003 | BMW | 325i | 2.5L | L6 | N/A | w/ Bosch 120 amp alt., w/ Oval Connector; Remanufactured |
| 2003 | BMW | 330Ci | 3.0L | L6 | N/A | wo/ Air Duct, w/ Bosch 120 amp alt., w/ Oval Connector; Remanufactured |
| 2003 | BMW | Z4 | 3.0L | L6 | N/A | Remanufactured |
| 2003 | BMW | Z4 | 2.5L | L6 | N/A | Remanufactured |
| 2002 | BMW | 325Ci | 2.5L | L6 | N/A | wo/ Air Duct, w/ Bosch 120 amp alt., w/ Oval Connector; Remanufactured |
| 2002 | BMW | 325i | 2.5L | L6 | N/A | w/ Bosch 120 amp alt., w/ Oval Connector; Remanufactured |
| 2002 | BMW | 330Ci | 3.0L | L6 | N/A | wo/ Air Duct, w/ Bosch 120 amp alt., w/ Oval Connector; Remanufactured |
| 2001 | BMW | 325Ci | 2.5L | L6 | N/A | wo/ Air Duct, w/ Bosch 120 amp alt., w/ Oval Connector; Remanufactured |
| 2001 | BMW | 325i | 2.5L | L6 | N/A | w/ Bosch 120 amp alt., w/ Oval Connector; Remanufactured |
| 2001 | BMW | 330Ci | 3.0L | L6 | N/A | wo/ Air Duct, w/ Bosch 120 amp alt., w/ Oval Connector; 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.