The Bosch Voltage Regulator (cross 113903803E / 9190040099) keeps your classic Volkswagen’s charging system at peak performance. It precisely controls alternator output to protect the battery and electrical components from voltage spikes. Fits air-cooled VW models from the late 1960s to early 1970s, including Beetle, Karmann Ghia, and Transporter.
Key Features & Benefits
- OEM-Spec Regulation: Maintains stable 12V output for reliable charging.
- Durable Construction: Built to resist heat, vibration, and moisture under the hood.
- Direct Replacement: Drop-in fit for original VW voltage regulators.
Vehicle Fitment
| Make | Model | Years | Engine |
|---|---|---|---|
| Volkswagen | Squareback | 1967–1973 | 1.6H4 |
| Volkswagen | Karmann Ghia | 1970–1973 | 1.6H4 |
| Volkswagen | Fastback | 1967–1973 | 1.6H4 |
| Volkswagen | Beetle | 1970–1973 | 1.6H4 |
| Volkswagen | Karmann Ghia | 1967–1969 | 1.5H4 |
| Volkswagen | Beetle | 1967–1969 | 1.5H4 |
| Volkswagen | Transporter | 1968 | 1.6H4 |
| Volkswagen | Campmobile | 1968 | 1.6H4 |
| Volkswagen | Transporter | 1967 | 1.5H4 |
Technical Specifications
| Part Number | 113903803E |
| Cross Reference | 9190040099 |
| System Voltage | 12V |
Installation Notes
Direct replacement; basic mechanical skill recommended.
About BOSCH
Bosch has been a leading automotive supplier for over 130 years, known for precision engineering and reliable OE-quality parts.
This part also goes by the following cross reference.
Cross Reference Part Number:
Fits These Vehicles
| Make | Model | Engine | Years |
|---|---|---|---|
| Volkswagen | Squareback | 1.6H4 | 1967–1973 |
| Volkswagen | Karmann Ghia | 1.6H4 | 1970–1973 |
| Volkswagen | Fastback | 1.6H4 | 1967–1973 |
| Volkswagen | Beetle | 1.6H4 | 1970–1973 |
| Volkswagen | Karmann Ghia | 1.5H4 | 1967–1969 |
| Volkswagen | Beetle | 1.5H4 | 1967–1969 |
| Volkswagen | Transporter | 1.6H4 | 1968–1968 |
| Volkswagen | Campmobile | 1.6H4 | 1968–1968 |
| Volkswagen | Transporter | 1.5H4 | 1967–1967 |