Alternator Voltage Regulator 12V Caterpillar Denso 3 Pin P IG L 57.5mm Active Lamp VS 14.5V REG6058

Alternator Voltage Regulator 12V Caterpillar Denso 3 Pin P IG L 57.5mm Active Lamp VS 14.5V REG6058
Vehicle Compatibility
Alternator voltage regulator for Caterpillar alternator applications using Nippon Denso regulator specifications where the alternator uses a matching 3 pin connector in the P IG L layout and the same mounting specification. Designed around a 57.5mm mounting point diameter and commonly identified by OE reference 12600001800. Plug type listed as IDTach-L-IG and specified with active lamp function and 2.5 sec LRC behaviour. Confirm by alternator label, plug style and mounting measurement before ordering.
- Caterpillar: Alternator applications matching OE 12600001800 and 3 pin P-IG-L regulator layout (57.5mm mounting)
Specifications
- Reference: REG6058
- Part Type: Alternator Voltage Regulator
- Manufacturer: Nippon Denso
- System Voltage: 12V
- Operating Voltage: 14V
- Regulated Voltage (Designation): 14.5V
- Charging Voltage: 14.4V
- Connector / Pins: 3 Pin (P-IG-L)
- Plug Type: IDTach-L-IG
- Specification: 2.5 Sec. LRC; Active Lamp
- Mounting Points Diameter: 57.5mm
OE Numbers
- Caterpillar / Denso Reference: 12600001800
Cross References
- Mobiletron: VR-H2005-60
- Other Suppliers: REG6058
Features
- Denso regulator specification for Caterpillar alternator builds using a 3 pin P-IG-L interface
- 57.5mm mounting specification to match compatible regulator housings and fastener spacing
- 2.5 second LRC behaviour with active lamp function for correct warning lamp and charge control response
- 14.4V charging control with 14.5V designation for stable 12V system charging performance
- Best practice is to confirm OE reference 12600001800 and plug style before installation to avoid incorrect 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 and clear photos of the existing plug and mounting points
- 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 voltage regulator replacement
- Confirm the connector is 3 pin P-IG-L and the mounting point diameter is 57.5mm before fitting
- Inspect brushes, slip rings and internal connections while the alternator is open and replace worn parts as required
- Ensure all charging circuit connections and earth points are clean and tight to prevent voltage drop and repeat failures
- After installation, verify charging voltage under load and confirm warning lamp behaviour is correct
- If you are unsure about alternator repairs on equipment, have the unit fitted and tested by a qualified auto electrician
Original: $21.77
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$6.53Product Information
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Description
Vehicle Compatibility
Alternator voltage regulator for Caterpillar alternator applications using Nippon Denso regulator specifications where the alternator uses a matching 3 pin connector in the P IG L layout and the same mounting specification. Designed around a 57.5mm mounting point diameter and commonly identified by OE reference 12600001800. Plug type listed as IDTach-L-IG and specified with active lamp function and 2.5 sec LRC behaviour. Confirm by alternator label, plug style and mounting measurement before ordering.
- Caterpillar: Alternator applications matching OE 12600001800 and 3 pin P-IG-L regulator layout (57.5mm mounting)
Specifications
- Reference: REG6058
- Part Type: Alternator Voltage Regulator
- Manufacturer: Nippon Denso
- System Voltage: 12V
- Operating Voltage: 14V
- Regulated Voltage (Designation): 14.5V
- Charging Voltage: 14.4V
- Connector / Pins: 3 Pin (P-IG-L)
- Plug Type: IDTach-L-IG
- Specification: 2.5 Sec. LRC; Active Lamp
- Mounting Points Diameter: 57.5mm
OE Numbers
- Caterpillar / Denso Reference: 12600001800
Cross References
- Mobiletron: VR-H2005-60
- Other Suppliers: REG6058
Features
- Denso regulator specification for Caterpillar alternator builds using a 3 pin P-IG-L interface
- 57.5mm mounting specification to match compatible regulator housings and fastener spacing
- 2.5 second LRC behaviour with active lamp function for correct warning lamp and charge control response
- 14.4V charging control with 14.5V designation for stable 12V system charging performance
- Best practice is to confirm OE reference 12600001800 and plug style before installation to avoid incorrect 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 and clear photos of the existing plug and mounting points
- 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 voltage regulator replacement
- Confirm the connector is 3 pin P-IG-L and the mounting point diameter is 57.5mm before fitting
- Inspect brushes, slip rings and internal connections while the alternator is open and replace worn parts as required
- Ensure all charging circuit connections and earth points are clean and tight to prevent voltage drop and repeat failures
- After installation, verify charging voltage under load and confirm warning lamp behaviour is correct
- If you are unsure about alternator repairs on equipment, have the unit fitted and tested by a qualified auto electrician













