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
Important: Product information, kit contents and compatibility are provided as a guide and may contain errors or omissions. Please verify that this part and any included components are correct for your vehicle before installation. For full details see our Website Disclaimer (Errors & Omissions).