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WAI 21066N Alternator
| Brand | WAI 21066N |
|---|---|
| 12 | 12 |
| Fan Type | Internal |
| Rotation Direction | Clockwise (right) |
| Family | Bosch |
| Regulator Type | Internal |
| Amperage Rating | 210 |
| Fits | Volvo · 45 vehicles |
100% new unit. Not remanufactured, with proprietary components and processes.
210-amp output. Built to supply the electrical demand of modern charging systems.
Internal regulator. Integrated control for a cleaner alternator design.
Cross-references NTK 21066, 0 125 812 009 and 0 125 812 012 for the same application. See all 8.
Alternator Overview
This WAI alternator, part number 21066N, is a 210-amp replacement built for Volvo charging-system applications that need strong electrical output. It is a 100% new unit, not remanufactured, and uses an internal regulator with an internal fan for integrated operation.
Compatible With Volvo XC90, S60, S90, V90, V90 Cross Country, XC60, V60, V60 Cross Country, S80, and XC70 applications listed below.
Key Features
- 210-amp output for higher electrical demand.
- 100% new construction, not remanufactured.
- Internal regulator for simplified charging control.
- Internal fan design for compact alternator packaging.
- Bosch family design with clockwise right rotation.
Detailed Description
The WAI 21066N alternator is engineered to supply the amperage required by modern vehicle electrical systems. Its 210-amp rating, internal regulator, and clockwise right rotation make it a direct-fit charging component for the Volvo applications shown in the fitment data. The Bosch family design and proprietary manufacturing processes support consistent performance and service life.
This part cross-references NTK 21066 for the same application.
What It Helps Solve
- Low charging output from a worn alternator.
- Battery warning lights caused by charging-system faults.
- Electrical instability under higher accessory loads.
- Charging issues related to internal regulator failure.
- Noise or performance loss from an aging alternator assembly.
Installation Notes
Verify the vehicle’s VIN and amperage requirement before ordering, since fitment varies by model year and configuration. Confirm the connector, rotation direction, and mounting style against the original unit before installation. This alternator is listed for Volvo applications with 210-amp or VIN-specific requirements as shown in the fitment table.
Quality Assurance
WAI states that this alternator is manufactured as a new unit using proprietary components and processes to support maximum life and performance.
| Year | Make | Model | Liters | Cylinders | Fuel Type | Notes |
|---|---|---|---|---|---|---|
| 2022 | Volvo | XC90 | — | — | — | 210 Amp |
| 2021 | Volvo | S60 | — | — | — | VIN A2 |
| 2021 | Volvo | S90 | — | — | — | VIN A2 |
| 2021 | Volvo | V90 | — | — | — | VIN A2 |
| 2021 | Volvo | V90 Cross Country | — | — | — | VIN A2 |
| 2021 | Volvo | XC60 | — | — | — | 210 Amp |
| 2021 | Volvo | XC90 | — | — | — | 210 Amp |
| 2020 | Volvo | S60 | — | — | — | 210 Amp |
| 2020 | Volvo | S90 | — | — | GAS | 210 Amp |
| 2020 | Volvo | V90 | — | — | — | 210 Amp |
| 2020 | Volvo | V90 Cross Country | — | — | — | 210 Amp |
| 2020 | Volvo | XC60 | — | — | — | VIN A2 |
| 2020 | Volvo | XC90 | — | — | — | VIN A2 |
| 2019 | Volvo | S60 | — | — | — | 210 Amp |
| 2019 | Volvo | S90 | — | — | — | 210 Amp |
| 2019 | Volvo | V60 | — | — | — | VIN A2 |
| 2019 | Volvo | V90 | — | — | — | 210 Amp |
| 2019 | Volvo | V90 Cross Country | — | — | — | 210 Amp |
| 2019 | Volvo | XC60 | — | — | — | VIN A2 |
| 2019 | Volvo | XC90 | — | — | — | VIN A2 |
| 2018 | Volvo | S60 | — | — | — | 210 Amp |
| 2018 | Volvo | S90 | — | — | GAS | 210 Amp |
| 2018 | Volvo | V60 | — | — | — | 210 Amp |
| 2018 | Volvo | V90 | — | — | — | 210 Amp |
| 2018 | Volvo | V90 Cross Country | — | — | — | 210 Amp |
| 2018 | Volvo | XC60 | — | — | — | VIN A2 |
| 2018 | Volvo | XC90 | — | — | — | VIN A2 |
| 2017 | Volvo | S60 | — | — | — | 210 Amp |
| 2017 | Volvo | S90 | — | — | — | 210 Amp |
| 2017 | Volvo | V60 | — | — | — | 210 Amp |
| 2017 | Volvo | V60 Cross Country | — | — | — | VIN 40 |
| 2017 | Volvo | V90 Cross Country | — | — | — | 210 Amp |
| 2017 | Volvo | XC60 | — | — | — | VIN 49 |
| 2017 | Volvo | XC90 | — | — | — | VIN A2 |
| 2016 | Volvo | S60 | 2.0L | L4 | — | VIN 26 |
| 2016 | Volvo | S80 | — | — | — | VIN 40 |
| 2016 | Volvo | V60 | 2.0L | L4 | — | VIN 40 |
| 2016 | Volvo | XC60 | 2.0L | L4 | — | VIN 40 |
| 2016 | Volvo | XC70 | 2.0L | L4 | — | VIN 40 |
| 2016 | Volvo | XC90 | — | — | — | VIN A2 |
| 2015 | Volvo | S60 | 2.0L | L4 | — | VIN 40 |
| 2015 | Volvo | S80 | 2.0L | L4 | — | VIN 40 |
| 2015 | Volvo | V60 | 2.0L | L4 | — | VIN 40 |
| 2015 | Volvo | XC60 | 2.0L | L4 | — | VIN 40 |
| 2015 | Volvo | XC70 | 2.0L | L4 | — | VIN 40 |
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