
Subaru Vehicle Compatibility Table
| Vehicle | Model | Genuine Part Number | Part Number | Manufacturer | Voltage/Current | Engine |
|---|---|---|---|---|---|---|
| IMPREZA | GP7 G4,GJ3,GJ2,GJ6 | 23700AA720 | A2TL0291 | Mitsubishi | 12V | EJ20 |
| IMPREZA | GP2 | 23700AA721 | A2TL0291A | Mitsubishi | 12V | FB16A |
Currently out of stock. Please contact us for more information.
The parts supplied by Auto Parts Box Japan are products that have undergone strict quality control by Japanese companies and possess the following features:
- Reliability – Rebuilt in Japan Using Genuine/OEM Cores.
- High Quality – Rigorous inspections and meticulous quality control.
- Durability – Providing consistent performance and peace of mind.
- Cost-Effective – Providing assured quality at a lower price compared to purchasing new parts, helping you save on your budget.

How to Check Compatibility
If you do not know the part number, please provide your vehicle’s chassis number, and we will help verify the compatible parts for your car.
For alternators, the manufacturer’s part number is usually printed on a sticker attached to the unit. If the number is still visible and the sticker is not damaged, please provide that number.
Regarding Auto Parts
For more details on the rebuilt parts supplied by Auto Parts Box Japan, please see the following pages:

Types of Auto Parts

Rebuilt Parts

Contact Us
Feel free to contact us with any questions or service requests.
Prices on our website are slightly lower than on eBay, as there are no additional marketplace fees.
You’re welcome to choose whichever option is more convenient — the product and quality remain the same.
Alternator: Basic Functions and Common Problems
A detailed explanation of the alternator’s role, structure, and common signs of malfunction is available at the link below.
Please feel free to take a look if you’re interested.
Alternator Components
| Part Name | Genuine Part Number |
|---|---|
| Alternator assembly | 23700AA720 23700AA721 |
| Rotor assembly | 23708AA280 23708AA281 23708AA282 23708AA300 |
| Stator assembly | 23712AA220 23712AA240 |
| Front cover assembly | 23718AA230 23718AA290 23718AA291 |
| Radial ball bearing | 23721AA040 23721AA070 23721AA071 23721AA121 |
| Rear cover assembly | 23727AA560 23727AA610 |
| Nut | 23745AA000 |
| Pulley | 23752AA120 23752AA150 |
| Brush set | 23754AA040 |
| Screw set | 23759AA050 23759KA030 23759KA040 23759AA040 |
| Bushing set | 23797AA110 |
| Regulator | 23815AA270 23815AA280 |
| Diode assembly | 23830AA280 23830AA300 |

