Alternator Voltage Regulator Hitachi Type 12V Isuzu 2.8 Diesel REG3015
Vehicle Compatibility & Applications
This Hitachi type 12V alternator voltage regulator is designed for Isuzu diesel and General Motors industrial applications using 3 pin IG–L–S (Sense) regulators. It is suitable where the original alternator uses an internal regulator with external fan and a matching plug layout.
- Reference: REG3015
- Applications: General Motors; Industrial applications; Isuzu diesel
- Typical engines: Isuzu 2.0L diesel; 2.2L diesel; 2.8L diesel
- Typical models: Isuzu KB250 diesel / turbo diesel (TD) and related industrial engines
- OE / cross reference: GM 94167410; Hitachi L150-33155
Always compare the OE number, plug configuration and alternator label with your original unit before ordering REG3015.
Specifications
- Reference: REG3015
- Part type: Alternator voltage regulator
- System voltage: 12V
- Operating voltage: 14V
- Charging voltage: 14.5V (VS ≈ 14.5V)
- Manufacturer type: Hitachi
- Circuit regulator: A-circuit
- Type: IR / EF (internal regulator, external fan)
- Pins: 3P IG–L–S (Sense–IG–L)
- Primary usage: Isuzu 2.0L / 2.2L / 2.8L diesel; Isuzu KB250 diesel / TD; GM industrial engines
- Function: Controls alternator output voltage and field excitation
- OE numbers: General Motors 94167410; Hitachi L150-33155; Isuzu equivalent as per OE catalogues
Features
- Hitachi style 12V alternator regulator for Isuzu diesel and GM industrial applications
- 3 pin IG–L–S (Sense) plug layout for direct replacement on matching alternators
- A-circuit internal regulator with external fan configuration for common Hitachi units
- Charging voltage calibrated around 14.5V to protect batteries and electrical systems
- Compact OEM-style design to simplify alternator reconditioning and field repairs
Why Buy From Us
- Local stock on popular Isuzu KB250 and industrial charging components like REG3015
- Standard 12 month warranty under normal operating and installation conditions
- Fitment assistance using OE numbers, alternator labels and plug photos
- Secure online ordering with reliable nationwide courier delivery
- Trusted by workshops, fleets and industrial users for dependable alternator parts
Installation & Maintenance Tips
- Disconnect the vehicle battery before removing or installing the alternator or regulator.
- Confirm that your alternator is a Hitachi type unit with 3 pin IG–L–S plug and A-circuit layout before fitting REG3015.
- Inspect brushes, slip rings and internal wiring for wear or overheating while replacing the regulator.
- Ensure all main power and earth cables are clean and tight to prevent voltage drop and charging faults.
- After installation, test charging voltage at the battery with engine running and electrical loads applied to confirm correct regulation.
- For critical industrial or fleet equipment, have the charging system load-tested by a qualified auto electrician.
$18.56
Alternator Voltage Regulator Hitachi Type 12V Isuzu 2.8 Diesel REG3015—
$18.56
Description
Vehicle Compatibility & Applications
This Hitachi type 12V alternator voltage regulator is designed for Isuzu diesel and General Motors industrial applications using 3 pin IG–L–S (Sense) regulators. It is suitable where the original alternator uses an internal regulator with external fan and a matching plug layout.
- Reference: REG3015
- Applications: General Motors; Industrial applications; Isuzu diesel
- Typical engines: Isuzu 2.0L diesel; 2.2L diesel; 2.8L diesel
- Typical models: Isuzu KB250 diesel / turbo diesel (TD) and related industrial engines
- OE / cross reference: GM 94167410; Hitachi L150-33155
Always compare the OE number, plug configuration and alternator label with your original unit before ordering REG3015.
Specifications
- Reference: REG3015
- Part type: Alternator voltage regulator
- System voltage: 12V
- Operating voltage: 14V
- Charging voltage: 14.5V (VS ≈ 14.5V)
- Manufacturer type: Hitachi
- Circuit regulator: A-circuit
- Type: IR / EF (internal regulator, external fan)
- Pins: 3P IG–L–S (Sense–IG–L)
- Primary usage: Isuzu 2.0L / 2.2L / 2.8L diesel; Isuzu KB250 diesel / TD; GM industrial engines
- Function: Controls alternator output voltage and field excitation
- OE numbers: General Motors 94167410; Hitachi L150-33155; Isuzu equivalent as per OE catalogues
Features
- Hitachi style 12V alternator regulator for Isuzu diesel and GM industrial applications
- 3 pin IG–L–S (Sense) plug layout for direct replacement on matching alternators
- A-circuit internal regulator with external fan configuration for common Hitachi units
- Charging voltage calibrated around 14.5V to protect batteries and electrical systems
- Compact OEM-style design to simplify alternator reconditioning and field repairs
Why Buy From Us
- Local stock on popular Isuzu KB250 and industrial charging components like REG3015
- Standard 12 month warranty under normal operating and installation conditions
- Fitment assistance using OE numbers, alternator labels and plug photos
- Secure online ordering with reliable nationwide courier delivery
- Trusted by workshops, fleets and industrial users for dependable alternator parts
Installation & Maintenance Tips
- Disconnect the vehicle battery before removing or installing the alternator or regulator.
- Confirm that your alternator is a Hitachi type unit with 3 pin IG–L–S plug and A-circuit layout before fitting REG3015.
- Inspect brushes, slip rings and internal wiring for wear or overheating while replacing the regulator.
- Ensure all main power and earth cables are clean and tight to prevent voltage drop and charging faults.
- After installation, test charging voltage at the battery with engine running and electrical loads applied to confirm correct regulation.
- For critical industrial or fleet equipment, have the charging system load-tested by a qualified auto electrician.
