Description
Vehicle Compatibility & OE Cross Reference
Alternator voltage regulator for Valeo alternators where the original regulator matches an A Circuit design with IR/IF internal regulator internal fan configuration and the same voltage characteristics. Listed for multi-brand applications including Iveco, Mercedes-Benz, Peugeot, Audi, and Volkswagen. Confirm fitment by matching alternator label and OE cross reference before ordering.
OE Numbers By Brand
- Audi: 028 903 803F; 078 903 803A; 078 903 803B
- Seat: 028 903 803F; 078 903 803A; 078 903 803B
- Skoda: 028 903 803F; 078 903 803A; 078 903 803B
- VW: 028 903 803F; 078 903 803A; 078 903 803B
- Citroen / Peugeot: 576187; 576190; 5761.87; 5761.9
- Mercedes-Benz: 0021549106; 215-491-06
- VAG: 028903803F; 028903803FX; 078903083A; 078903803A; 078903803B
Specifications
- Reference: REG0002
- Part Type: Alternator Voltage Regulator
- Manufacturer: Valeo
- System Voltage: 12V
- Regulated Voltage (Set Point): 14.6V (VS=14.6V)
- Charging Voltage: 14.7V
- Operating Voltage: 14V
- Circuit: A Circuit
- Type: IR/IF (Internal Regulator / Internal Fan)
- Application Note: Multi-brand coverage, match by OE numbers and alternator type
Features
- Regulates alternator field current to maintain stable charging output on compatible Valeo alternators
- 14.6V set point with 14.7V charging characteristic for matching 12V electrical systems
- A Circuit control strategy with IR/IF internal regulator internal fan configuration for specified alternator designs
- OE cross references provided to support accurate matching across Audi VW Mercedes-Benz Peugeot and Iveco applications
- Useful for alternator overhaul work where the original regulator matches the same OE references
Why Buy From Us
- Local South African stock with nationwide courier delivery
- 12-month warranty subject to correct application and installation
- Fitment support using alternator labels and OE number matching
- Trusted by workshops and DIY customers for reliable charging system components
Trusted by thousands of South African drivers for quality and durability.
Installation & Maintenance Tips
- Disconnect the battery before alternator removal or regulator replacement
- Confirm the alternator is Valeo and the regulator matches the A Circuit IR/IF design and voltage specification
- Cross check the OE numbers listed and compare the regulator layout to the original unit before fitting
- Inspect brushes and slip rings while the alternator is open and replace worn components where required
- After installation, verify charging voltage at idle and under load to confirm stable regulation
- If you are unsure about alternator repairs, have the regulator fitted and tested by a qualified auto electrician