The BMW Voltage Regulator Bosch 12311726022, manufactured by Bosch (part number 1-987-237-059 / 1987237059), is an OE Supplier component designed for select BMW models. Engineered to meet exacting OEM standards, this voltage regulator ensures reliable electrical system performance and proper charging for your vehicle's alternator.
Key Features:
- Genuine Bosch quality with OEM compliance
- Designed for compatibility with a range of BMW models and chassis
- OE part number: 12 31 1 726 022 / 12311726022
- Precise fit for various E21, E23, E24, E28, E30, E32, E34, and E36 BMW vehicles
For exact model and year compatibility—including popular applications such as BMW 3 Series (E30), 5 Series (E28, E34), 6 Series (E24), and 7 Series (E23, E32)—refer to the verified fitment summary. This Bosch voltage regulator delivers dependable electrical management for your classic or late-model BMW.
Compare alternative brands
These products share the same OE reference. Select your vehicle to confirm exact fitment.