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WAI 20994N Alternator
| Brand | WAI 20994N |
|---|---|
| 12 | 12 |
| Fan Type | Internal |
| Rotation Direction | Clockwise (right) |
| Pulley Included | Yes |
| Family | Bosch |
| Pulley Groove Quantity | 6 |
| Pulley Belt Type | Serpentine |
| Regulator Type | Internal |
| Decoupled Or Clutch Pulley | Yes |
| Amperage Rating | 140 |
| Fits | Volkswagen · 3 vehicles |
100% new construction. Not remanufactured, with proprietary components and processes.
140-amp output. Built to supply the electrical demand of modern vehicles.
Serpentine pulley included. Features a 6-groove design with internal regulation.
Cross-references Four Seasons 20994, 04E-903-025J and 04E-903-025JX for the same application. See all 5.
Overview
This WAI alternator, part number 20994N, is a 100% new replacement built to supply the amperage needed for modern electrical loads. It is engineered for direct replacement use on select Volkswagen Jetta applications and uses proprietary components and processes for consistent performance.
Key Features
- 140-amp output for vehicles with higher electrical demand
- 100% new construction, not remanufactured
- Internal regulator for integrated voltage control
- Internal fan design for compact packaging
- 6-groove serpentine pulley included
- Decoupled clutch pulley design for smoother belt operation
Detailed Description
The WAI 20994N alternator is built for select 2016-2018 Volkswagen Jetta models without the Start/Stop feature. Its Bosch family design, clockwise rotation, and internal regulation support stable charging performance in a modern electrical system. With a 140-amp rating and serpentine belt pulley, this alternator is suited to applications that place steady demand on the charging system. The 20994N also cross-references Four Seasons 20994 for the same application.
WAI focuses on new electrical components rather than remanufactured units, and this alternator reflects that approach with proprietary manufacturing methods and application-specific engineering. For buyers searching for a Volkswagen Jetta alternator 2016-2018 or a WAI 20994N replacement alternator, this unit matches the listed fitment and configuration details.
What It Is Used For
- Charging-system warning lights caused by alternator output loss
- Battery drain from insufficient charging performance
- Electrical instability under accessory load
- Noise or belt issues related to a worn alternator pulley
- Replacement after alternator failure in the charging system
Installation Notes
Fits 2016-2018 Volkswagen Jetta, N/A, excluding Start/Stop feature. Confirm pulley type, rotation direction, and electrical connector match the original unit before installation. Verify belt condition and charging-system connections during replacement to help ensure proper operation.
Quality Assurance
This alternator is manufactured as a new unit using proprietary components and processes intended to support long service life and dependable output.
| Year | Make | Model | Liters | Cylinders | Notes |
|---|---|---|---|---|---|
| 2018 | Volkswagen | Jetta | 1.4L | L4 | Exc. Start/Stop Feature |
| 2017 | Volkswagen | Jetta | 1.4L | L4 | Exc. Start/Stop Feature |
| 2016 | Volkswagen | Jetta | 1.4L | L4 | Exc. Start/Stop Feature |
| No rows match your filter. | |||||