2022–2024 Mercedes-Benz SL63 AMG R231 Alternator 21978 | 250A, 4-Groove
This new replacement alternator fits the 2022–2024 Mercedes-Benz SL63 AMG R231 in the configurations listed below.
Vehicle fitment
| Model years | Vehicle |
|---|---|
| 2022, 2023, 2024 | Mercedes-Benz G63 4x4 Squared AMG W463 |
| 2019, 2020, 2021, 2022, 2023, 2024 | Mercedes-Benz G63 AMG W463 |
| 2018, 2019, 2021 | Mercedes-Benz S63 AMG C217 |
| 2022, 2023, 2024 | Mercedes-Benz SL55 AMG R231 |
| 2022, 2023, 2024 | Mercedes-Benz SL63 AMG R231 |
| 2024 | Mercedes-Benz SL63 AMG S E Performance R231 |
Part numbers
Additional references: 0009061207, A0009061207, CG25S048, 21978
What’s included
Includes one new alternator with pulley.
Specifications
- Output: 250 A
- Voltage: 12 V
- Pulley grooves: 4
- Pulley type: Clutch pulley
- Rotation: Clockwise
- Regulator: Internal
Before ordering
Match the original alternator part number, amperage, electrical connector, mounting points and pulley with the listing. Check any equipment or production-date notes in the fitment table.
Installation tip: Disconnect the negative battery cable before replacement. Check the belt, tensioner and battery-cable connections, then verify charging operation after installation.
Need a match? Send your VIN and a photo of the original alternator label to our Auto Parts Desk.
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