Description
Vehicle Compatibility & OE Cross Reference
Alternator voltage regulator for Mercedes-Benz applications using a Bosch alternator where the original regulator uses BSS (COM) communication control (BSS 3) and matches a 2 pin connection with IDCPU CPU plug type. Listed as a Bosch 2 pin regulator for NCB1, NCB2 and E10 Mercedes-Benz alternator applications. Confirm by alternator label, regulator plug style and OE cross reference before ordering.
OE Numbers And Cross References
- Mercedes-Benz: 0031543406; 0031543706; 0031545806
- Bosch: F00M145272; F00M145293
- Related Article Numbers: ALT1194; ALT1194A
Specifications
- Reference: REG1074
- Part Type: Alternator Voltage Regulator
- Manufacturer: Bosch
- System Voltage: 12V
- Charging Voltage: 14.3V
- Operating Voltage: 14V
- Voltage Range: From 10.7V To 16.0V
- Circuit: A Circuit
- Type: IR/IF (Internal Regulator / Internal Fan)
- Connector / Pins: 2 Pin
- Plug Type: IDCPU CPU
- Specification: BSS (COM) BSS 3
- Article Numbers: ALT1194; ALT1194A
- OE References: 0031543406; 0031543706; 0031545806; F00M145272; F00M145293
Features
- Designed for Bosch alternators using BSS (COM) communication control (BSS 3) on supported Mercedes-Benz systems
- 2 pin connection with IDCPU CPU plug type to match the specified regulator interface
- A circuit regulator logic with IR/IF internal regulator internal fan configuration for matching alternator designs
- Charging behaviour aligned to the listed specification, including 14.3V charging and 10.7V to 16.0V operating range
- OE and Bosch cross references included to support accurate matching before fitment
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, regulator markings and clear plug photos
- Trusted by workshops and fleet operators 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 Bosch and the regulator uses BSS (COM) BSS 3 control with a 2 pin IDCPU CPU plug
- Cross check at least one OE or Bosch reference number before fitting, such as 0031543706 or F00M145272
- Inspect brushes and slip rings while the alternator is open and replace worn components where required
- After installation, verify charging voltage 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).