Description
Vehicle Compatibility & Applications
This Nippon Denso 12V 4 pin alternator voltage regulator is designed for Toyota applications using the IG–C–L–FR plug layout and internal fan alternators. It is commonly found on Toyota Avensis and Toyota RAV4 models fitted with the matching Denso alternator.
- Reference: REG6047
- Applications: Toyota Avensis; Toyota RAV4
- Alternator type: Nippon Denso internal regulator, internal fan
- Plug layout: 4 pin IG–C–L–FR (Toyota 4-pin type)
Always confirm the alternator brand, plug type and mounting style on your vehicle before ordering REG6047.
Specifications
- Reference: REG6047
- Part type: Alternator voltage regulator
- System voltage: 12V
- Set point (VS): approx. 14.0V
- Manufacturer type: Nippon Denso
- Circuit regulator: A-circuit
- Type: IR / IF (internal regulator, internal fan)
- Pins: 4P IG–C–L–FR
- Primary usage: Toyota Avensis and RAV4 alternators with 4-pin Denso plug
- Function: Controls alternator output voltage and communication with the vehicle’s charging system
Features
- Nippon Denso style 12V alternator regulator for Toyota Avensis and RAV4
- 4 pin IG–C–L–FR connector for direct plug-in replacement on matching Denso alternators
- A-circuit internal regulator design for stable, OE-style charging performance
- Internal fan configuration to match factory alternator construction
- Helps maintain correct system voltage around 14.0V to protect battery and electronics
Why Buy From Us
- Local stock on popular Toyota charging components like REG6047
- Standard 12 month warranty under normal operating and installation conditions
- Fitment assistance using alternator labels, plug photos and vehicle details
- Secure online ordering with reliable nationwide courier delivery
- Trusted by workshops and auto electricians for quality alternator parts
Installation & Maintenance Tips
- Disconnect the vehicle battery before removing or installing the alternator or regulator.
- Confirm that your alternator is a Nippon Denso unit with 4 pin IG–C–L–FR plug and A-circuit layout before fitting REG6047.
- Inspect brushes, slip rings and internal wiring for wear or heat damage while the alternator is open.
- Ensure all main power and earth cables are clean and tight to avoid voltage drop and charging faults.
- After installation, test charging voltage at the battery with engine running and electrical loads on to confirm correct regulation.
- If you are unsure about wiring or testing, have the regulator fitted 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).



