Description
Vehicle Compatibility & OE Cross Reference
Alternator voltage regulator for Bosch alternators on select Isuzu applications where the original regulator is an internal type with a round plug using a 3 pin S L IG layout (plug type IDSense IG L), and an A Circuit control strategy with IR/IF internal regulator internal fan configuration. Confirm by alternator label, round plug format and OE cross reference before ordering.
Listed Applications
- Isuzu: 2.5L Diesel; 2.8L Diesel; KB250D; KB280D
- Toyota: Toyota Industrial (applications using a matching regulator and OE references listed below)
OE Numbers By Brand
- Isuzu: 8943426800
- Toyota: 27000-64040; 2770064040; 2770064110
- Hino: 277001740
Specifications
- Reference: REG6011
- Part Type: Alternator Voltage Regulator
- Manufacturer: Bosch
- System Voltage: 12V
- Regulated Voltage (Set Point): 14.4V (VS=14.4V)
- Charging Voltage: 14.4V
- Operating Voltage: 14V
- Circuit: A Circuit
- Type: IR/IF (Internal Regulator / Internal Fan)
- Connector / Pins: 3 Pin (S L IG)
- Plug Type: IDSense IG L
- Specification: 2.5 Sec. LRC
- Active Lamp: Yes
- Short Circuit Protection: Yes
- OE Numbers: Isuzu 8943426800; Toyota 27000-64040, 2770064040, 2770064110; Hino 277001740
Features
- Regulates alternator field current to maintain stable charging on compatible Bosch Isuzu alternators
- 14.4V charging specification for matching 12V diesel electrical systems
- Round plug 3 pin S L IG layout with IDSense IG L plug type to match the correct regulator interface
- A Circuit control strategy and IR/IF internal regulator internal fan design for the specified alternator configuration
- Active lamp function with short circuit protection for supported charging circuits
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, plug photos and OE number matching
- Trusted by workshops and fleet operators for dependable 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 a round plug with 3 pin S L IG layout before fitting
- Inspect brushes, slip rings and rotor condition while the alternator is open and replace worn parts where required
- Ensure battery terminals and earth connections are clean and tight to prevent voltage drop and repeat failures
- After installation, verify charging voltage at idle and under load and confirm warning lamp behaviour
- If you are unsure about alternator repairs, have the regulator fitted and tested by a qualified auto electrician