Description
Vehicle Compatibility
Complete alternator regulator and rectifier pack for Hitachi alternator applications on select Isuzu vehicles. Listed for Isuzu KB250 diesel, Isuzu KB300 diesel, and Isuzu KB300-LX where the alternator uses a matching 2 pin S L connection (plug type IDL Sense) and the same charging characteristics. Confirm by alternator label and plug style before ordering.
- Isuzu: KB250 Diesel; KB300 Diesel; KB300-LX
Specifications
- Reference: REG3098
- Part Type: Alternator Regulator And Rectifier Complete Pack
- Manufacturer: Hitachi
- System Voltage: 12V
- Regulated Voltage (Set Point): 14.4V (VS=14.4V)
- Charging Voltage: 14.5V
- Operating Voltage: 14V
- Circuit: A Circuit
- Type: IR/IF (Internal Regulator / Internal Fan)
- Connector / Pins: 2 Pin (S L)
- Plug Type: IDL Sense (L Sense)
- Current Strength From: 35A
- Diode Type: Avalanche Diode
Features
- Combined regulator and rectifier pack to support alternator overhaul on compatible Hitachi Isuzu alternators
- 35A avalanche diode design with rectification and regulation in a matched complete assembly
- 2 pin S L connection with IDL Sense plug type for correct interface matching
- A circuit control strategy with IR/IF internal regulator internal fan configuration for specified alternator designs
- Helps restore charging performance where regulator or rectifier components have failed
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 clear photos of the existing plug and assembly
- 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 rectifier pack replacement
- Confirm the alternator is Hitachi and the plug is 2 pin S L with IDL Sense before fitting
- Inspect brushes, slip rings and stator condition while the alternator is open and replace worn parts as required
- Ensure all charging circuit connections are clean and tight to prevent voltage drop and repeat failures
- After reassembly, verify charging voltage under load and check for abnormal AC ripple
- If you are unsure about alternator repairs, have the unit 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).



