Alternator Voltage Regulator Toyota Quantum Lexus Honda Nippon Denso 4 Pin IG S L FR B Circuit 14.1V OE 27700-20090 REG6105
Alternator Voltage Regulator Toyota Quantum Lexus Honda Nippon Denso 4 Pin IG S L FR B Circuit 14.1V OE 27700-20090 REG6105
Vehicle Compatibility & OE Cross Reference
Alternator voltage regulator for Nippon Denso alternators where the original regulator matches a B Circuit design with IR/IF internal regulator internal fan configuration and a 4 pin connector in the IG S L FR layout. Listed for Toyota, Lexus, and Honda applications where the same regulator and OE references apply. Confirm by regulator plug style and OE cross reference before ordering.
OE Numbers By Brand
- Toyota: 27700-20090; 2770020090; 27700-20100; 2770020100
Variant Reference
- Variant / Reference: REG6105CX
Specifications
- Reference: REG6105
- Variant / Reference: REG6105CX
- Part Type: Alternator Voltage Regulator
- Manufacturer: Nippon Denso
- System Voltage: 12V
- Regulated Voltage (Set Point): 14.1V (VS=14.1V)
- Circuit: B Circuit
- Type: IR/IF (Internal Regulator / Internal Fan)
- Connector / Pins: 4 Pin (IG S L FR)
- Specification: 6 Sec. LRC
- Lamp Function: Standard Lamp Function
- Output Function: No Output
- OE Numbers: 27700-20090; 2770020090; 27700-20100; 2770020100
Features
- Designed to regulate alternator field current for stable charging on compatible Nippon Denso alternators
- 4 pin IG S L FR connector format for the specified Toyota Lexus Honda regulator interface
- B circuit control strategy with IR/IF internal regulator internal fan configuration for matching alternator layouts
- 6 sec LRC characteristic with standard lamp function and no output specification where required
- OE cross references provided 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, 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
- Match the regulator by Nippon Denso manufacturer, B circuit design, and the 4 pin IG S L FR plug layout
- Cross check the Toyota OE numbers listed to confirm the correct regulator family before fitting
- Inspect brushes and slip rings while the alternator is open and replace worn components 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 to confirm stable regulation
Original: $17.40
-70%$17.40
$5.22
Description
Vehicle Compatibility & OE Cross Reference
Alternator voltage regulator for Nippon Denso alternators where the original regulator matches a B Circuit design with IR/IF internal regulator internal fan configuration and a 4 pin connector in the IG S L FR layout. Listed for Toyota, Lexus, and Honda applications where the same regulator and OE references apply. Confirm by regulator plug style and OE cross reference before ordering.
OE Numbers By Brand
- Toyota: 27700-20090; 2770020090; 27700-20100; 2770020100
Variant Reference
- Variant / Reference: REG6105CX
Specifications
- Reference: REG6105
- Variant / Reference: REG6105CX
- Part Type: Alternator Voltage Regulator
- Manufacturer: Nippon Denso
- System Voltage: 12V
- Regulated Voltage (Set Point): 14.1V (VS=14.1V)
- Circuit: B Circuit
- Type: IR/IF (Internal Regulator / Internal Fan)
- Connector / Pins: 4 Pin (IG S L FR)
- Specification: 6 Sec. LRC
- Lamp Function: Standard Lamp Function
- Output Function: No Output
- OE Numbers: 27700-20090; 2770020090; 27700-20100; 2770020100
Features
- Designed to regulate alternator field current for stable charging on compatible Nippon Denso alternators
- 4 pin IG S L FR connector format for the specified Toyota Lexus Honda regulator interface
- B circuit control strategy with IR/IF internal regulator internal fan configuration for matching alternator layouts
- 6 sec LRC characteristic with standard lamp function and no output specification where required
- OE cross references provided 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, 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
- Match the regulator by Nippon Denso manufacturer, B circuit design, and the 4 pin IG S L FR plug layout
- Cross check the Toyota OE numbers listed to confirm the correct regulator family before fitting
- Inspect brushes and slip rings while the alternator is open and replace worn components 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 to confirm stable regulation
