Alternator Rectifier 24V 50A Hitachi IR/EF Isuzu NPR NCR NKR RCT4100
Vehicle Compatibility
- Isuzu NPR
- Isuzu NCR
- Isuzu NKR
Confirm by alternator label and plug style before ordering.
Specifications
- Reference: RCT4100
- Voltage: 24 V
- Operating Voltage: 28 V
- Charging Voltage: 28.4 V
- Current Strength From: 50 A
- Plug Type: IDL
- Plug-Type ID (as provided): L
- Manufacturer (as provided): Hitachi
- Type (as provided): IR/EF (Internal Regulator / External Fan)
- Pack Type (as provided): Regulator/Rectifier Pack
Confirm by alternator label and plug style before ordering.
Features
- 24 V regulator/rectifier pack for commercial alternator repair applications
- Hitachi IR/EF type as specified (internal regulator, external fan)
- IDL plug configuration with L identification as provided
- Designed around 28.4 V charging control with 50 A current strength from rating
Why Buy From Us
- South African seller with nationwide courier delivery
- Workshop-friendly charging system components for repairs and rebuilds
- Support available to confirm application before checkout
Trusted by thousands of South African drivers for quality and durability.
Installation & Maintenance Tips
- Disconnect the batteries before alternator removal or regulator/rectifier pack replacement.
- Confirm the alternator label, manufacturer (Hitachi), and plug style (IDL / L) match before fitment.
- Inspect brushes, slip rings, and rotor condition while the alternator is opened.
- After installation, verify charging voltage and output stability under load.
Confirm by alternator label and plug style before ordering.



Description
Vehicle Compatibility
- Isuzu NPR
- Isuzu NCR
- Isuzu NKR
Confirm by alternator label and plug style before ordering.
Specifications
- Reference: RCT4100
- Voltage: 24 V
- Operating Voltage: 28 V
- Charging Voltage: 28.4 V
- Current Strength From: 50 A
- Plug Type: IDL
- Plug-Type ID (as provided): L
- Manufacturer (as provided): Hitachi
- Type (as provided): IR/EF (Internal Regulator / External Fan)
- Pack Type (as provided): Regulator/Rectifier Pack
Confirm by alternator label and plug style before ordering.
Features
- 24 V regulator/rectifier pack for commercial alternator repair applications
- Hitachi IR/EF type as specified (internal regulator, external fan)
- IDL plug configuration with L identification as provided
- Designed around 28.4 V charging control with 50 A current strength from rating
Why Buy From Us
- South African seller with nationwide courier delivery
- Workshop-friendly charging system components for repairs and rebuilds
- Support available to confirm application before checkout
Trusted by thousands of South African drivers for quality and durability.
Installation & Maintenance Tips
- Disconnect the batteries before alternator removal or regulator/rectifier pack replacement.
- Confirm the alternator label, manufacturer (Hitachi), and plug style (IDL / L) match before fitment.
- Inspect brushes, slip rings, and rotor condition while the alternator is opened.
- After installation, verify charging voltage and output stability under load.
Confirm by alternator label and plug style before ordering.












