2020-2024 Audi e-tron GT, Porsche Taycan Battery Isolator Unit 9J1915251AJ
Porsche Part #: 9J1-915-251-AJ (9J1915251AJ)
Actual photo
The exact part you’ll receive — not a stock photo.
$808.00
Used
Donor2022 Porsche TAYCAN · ELECTRIC
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Programming required: this module must be coded to your VIN by a dealer or with the proper diagnostic tool before it will work.
Only 2 in stock — no guaranteed restock
Genuine OEM Used
SKU: 513735
Donor Vehicle: 2022 Porsche TAYCAN · ELECTRIC
5 photos
$808.00
30-Day Returns
Genuine OEM Used
SKU: 573363
Donor Vehicle: 2023 Porsche TAYCAN · ELECTRIC · 7k miles
5 photos
$808.00
30-Day Returns
- Genuine OEM — real photos
- 30-day returns on eligible parts
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Used Audi / Porsche Battery Isolator Unit, OEM part number 9J1915251AJ. This genuine component was removed from a donor vehicle and is ready for installation on an Audi e-tron GT or Porsche Taycan battery-electric platform. Also known as the high-voltage battery isolator, it controls isolation between the battery pack and the rest of the HV system—when it fails, you may see charging interruptions or a loss of power delivery. It replaces earlier revisions including 9J1915234AJ, 9J1915234AK, 9J1915251AK, and 9J1915251AG. Note that this unit requires coding to the vehicle’s VIN after installation by a qualified shop or dealer.
Specifications
| Fits Vehicle Model | e-tron GT, Taycan |
| Fits Vehicle Make | Audi, Porsche |
| Porsche Part No | 9J1-915-251-AJ (9J1915251AJ) |
| Compatible OEM Part No | 9J1-915-234-AJ, 9J1-915-234-AK, 9J1-915-251-AK, 9J1-915-251-AG |
| Category | Computers / Modules |
Compatible Vehicles
Fits 44 vehicle configurations across 2 makes, 2020-2024.
Check your specific vehicle before ordering.
This list shows year, make, and model. Some years have multiple trims or
engines that use different parts, and individual listings may have
additional fitment notes (e.g. “with sunroof only”). Review
the full variant list below, or
message us with your VIN
and we’ll confirm the match.
View all 44 vehicle configurations
| Year | Make | Model | Trim | Engine | Note |
|---|---|---|---|---|---|
| 2024 | Porsche | Taycan | Turbo S Turismo Wagon | Electric Vehicle | |
| 2024 | Porsche | Taycan | GTS Turismo Wagon | Electric Vehicle | |
| 2024 | Porsche | Taycan | Sedan | Electric Vehicle | |
| 2024 | Porsche | Taycan | 4S Sedan | Electric Vehicle | |
| 2024 | Porsche | Taycan | GTS Sedan | Electric Vehicle | |
| 2024 | Porsche | Taycan | Turbo S Sedan | Electric Vehicle | |
| 2024 | Porsche | Taycan | Turbo Turismo Wagon | Electric Vehicle | |
| 2024 | Porsche | Taycan | Turbo Sedan | Electric Vehicle | |
| 2024 | Porsche | Taycan | 4S Turismo Wagon | Electric Vehicle | |
| 2024 | Porsche | Taycan | 4 Turismo Wagon | Electric Vehicle | |
| 2023 | Audi | e-tron GT | Sedan | Electric Vehicle | |
| 2024 | Audi | e-tron GT | Sedan | Electric Vehicle | |
| 2022 | Audi | e-tron GT | Sedan | Electric Vehicle | |
| 2021 | Porsche | Taycan | Turbo S Sedan | Electric Vehicle | |
| 2022 | Porsche | Taycan | GTS Turismo Wagon | Electric Vehicle | |
| 2022 | Porsche | Taycan | 4S Turismo Wagon | Electric Vehicle | |
| 2022 | Porsche | Taycan | GTS Wagon | Electric Vehicle | |
| 2023 | Porsche | Taycan | Turbo Turismo Wagon | Electric Vehicle | |
| 2023 | Porsche | Taycan | Turbo Sedan | Electric Vehicle | |
| 2022 | Porsche | Taycan | 4S Sedan | Electric Vehicle | |
| 2020 | Porsche | Taycan | 4S Sedan | Electric Vehicle | |
| 2021 | Porsche | Taycan | Turbo S Turismo Wagon | Electric Vehicle | |
| 2021 | Porsche | Taycan | Sedan | Electric Vehicle | |
| 2023 | Porsche | Taycan | GTS Turismo Wagon | Electric Vehicle | |
| 2020 | Porsche | Taycan | Turbo Sedan | Electric Vehicle | |
| 2021 | Porsche | Taycan | 4 Turismo Wagon | Electric Vehicle | |
| 2023 | Porsche | Taycan | 4S Turismo Wagon | Electric Vehicle | |
| 2023 | Porsche | Taycan | GTS Sedan | Electric Vehicle | |
| 2023 | Porsche | Taycan | Turbo S Sedan | Electric Vehicle | |
| 2021 | Porsche | Taycan | Turbo Sedan | Electric Vehicle | |
| 2023 | Porsche | Taycan | 4 Turismo Wagon | Electric Vehicle | |
| 2022 | Porsche | Taycan | Turbo S Sedan | Electric Vehicle | |
| 2023 | Porsche | Taycan | Sedan | Electric Vehicle | |
| 2020 | Porsche | Taycan | Turbo S Sedan | Electric Vehicle | |
| 2021 | Porsche | Taycan | 4S Turismo Wagon | Electric Vehicle | |
| 2023 | Porsche | Taycan | Turbo S Turismo Wagon | Electric Vehicle | |
| 2021 | Porsche | Taycan | 4S Sedan | Electric Vehicle | |
| 2023 | Porsche | Taycan | 4S Sedan | Electric Vehicle | |
| 2022 | Porsche | Taycan | Sedan | Electric Vehicle | |
| 2022 | Porsche | Taycan | 4 Turismo Wagon | Electric Vehicle | |
| 2022 | Porsche | Taycan | Turbo Sedan | Electric Vehicle | |
| 2021 | Porsche | Taycan | Turbo Turismo Wagon | Electric Vehicle | |
| 2022 | Porsche | Taycan | Turbo Turismo Wagon | Electric Vehicle | |
| 2022 | Porsche | Taycan | Turbo S Turismo Wagon | Electric Vehicle |