OE Quality
60-Day Returns

MPA Electrical 15989 Alternator
Reliable Alternator for Toyota 4Runner, Tacoma, and Tundra
The MPA Electrical Remanufactured Alternator 15989 is designed to provide consistent 12-volt power for your Toyota 4Runner, Tacoma, and Tundra models. Engineered with quality components, this alternator ensures efficient charging and starting performance.
- 70 amps output for stable electrical supply
- Internal fan for effective cooling
- 4 groove serpentine pulley compatible with factory belts
- Internal voltage regulator for precise voltage control
- Clockwise rotation matching OEM specifications
- Manufactured by Nippondenso, a trusted name in automotive electrical parts
Detailed Alternator Features and Specifications
This remanufactured alternator from MPA Electrical delivers 70 amps of current at 12 volts, suitable for maintaining battery charge and powering electrical systems in Toyota 4Runner, Tacoma, and Tundra vehicles. The internal fan design helps dissipate heat efficiently, extending the alternator's service life. It features a 4 groove serpentine pulley that fits the original belt system, ensuring smooth operation without modifications. The internal voltage regulator maintains consistent voltage output, protecting your vehicle's electrical components. Rotation is clockwise, matching the original equipment manufacturer (OEM) requirements. The alternator is built by Nippondenso, known for durable and reliable automotive electrical parts.
About the MPA Electrical Remanufactured Product Line
The Remanufactured line by MPA Electrical offers alternators that have been carefully rebuilt to meet or exceed OEM standards. This process includes thorough inspection, replacement of worn components, and testing to ensure reliable performance. Choosing a remanufactured alternator like part number 15989 provides a cost-effective solution without compromising quality, specifically tailored for Toyota 4Runner, Tacoma, and Tundra models.
Common Applications and Problem Resolution
- Restores charging system functionality in Toyota 4Runner, Tacoma, and Tundra
- Replaces alternators with insufficient amperage output
- Solves battery drain issues caused by faulty voltage regulation
- Eliminates overheating problems due to improved internal fan design
- Addresses pulley wear or damage affecting belt alignment
Installation Notes and Tips
When installing the MPA Electrical Remanufactured Alternator 15989, ensure the vehicle battery is disconnected to prevent electrical shorts. Verify the clockwise rotation and 4 groove serpentine pulley match your vehicle’s specifications. Use proper torque settings on mounting bolts and confirm all electrical connections are secure. It is recommended to inspect the serpentine belt for wear and replace if necessary to maintain optimal performance.
Quality Assurance and Warranty Information
MPA Electrical remanufactured alternators undergo rigorous testing to meet quality and performance standards. Part number 15989 is backed by a limited warranty that covers defects in materials and workmanship, providing assurance of reliability for your Toyota 4Runner, Tacoma, and Tundra vehicles.
| Brand | MPA Electrical |
| Part Number | 15989 |
| Position | Remanufactured |
| Amps | 70 Amps |
| Clock | 3:30 |
| Fan | Internal |
| Manufacturer | Nippondenso |
| Pulley | 4 Groove Serpentine |
| Regulator | Internal |
| Rotation | Clockwise |
| Volts | 12 Volts |
This part fits 6 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2002 | Toyota | Tundra | 3.4L | V6 | N/A | w/ 70 amp alternator; Remanufactured |
| 2001 | Toyota | Tundra | 3.4L | V6 | N/A | w/ 70 amp alternator; Remanufactured |
| 2000 | Toyota | Tundra | 3.4L | V6 | N/A | w/ 70 amp alternator; Remanufactured |
| 1999 | Toyota | Tacoma | 3.4L | V6 | N/A | Remanufactured |
| 1998 | Toyota | 4Runner | 3.4L | V6 | N/A | Remanufactured |
| 1998 | Toyota | Tacoma | 3.4L | V6 | N/A | 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.