Standard Ignition VR-620 Voltage Regulator

Charging System Voltage Regulator Overview

Standard Ignition VR-620 is a 12-volt charging system voltage regulator for alternator-mounted applications. It uses a rectangular female connector with two male blade terminals and is sized for a direct-fit style replacement on supported Bosch alternator setups.

For BMW charging system service, this regulator is listed for multiple 2001-2006 BMW 325Ci, 325xi, 330Ci, 330xi, X3, and X5 applications, along with additional 2001-2005 BMW 320i, 325i, 330i, 525i, 530i, and 1999-2002 BMW Z3 coverage. The Standard Ignition VR-620 is also cross-referenced to OE and aftermarket numbers used in the same application.

Key Features

• 12-volt charging system voltage regulator
• Alternator mounting location
• Rectangular female connector with 1 connector interface
• 2 male blade terminals
• Compact housing dimensions: 109.22 x 70.866 x 42.164 mm
• Direct replacement reference for Bosch 120 amp alternator applications

Detailed Description

Standard Ignition VR-620 is a charging system voltage regulator built for alternator-mounted use in select BMW electrical systems. It is specified with a female rectangular connector, two male blade terminals, and 12-volt operation, making it a practical replacement when servicing the alternator regulator circuit. This part number, VR-620, is listed for BMW 325Ci, 325xi, 330Ci, 330xi, X3, X5, 320i, 325i, 330i, 525i, 530i, Z3, and 323i applications where the original setup matches the listed Bosch or alternator configuration.

This part cross-references OE and aftermarket numbers such as 12317501752 and VR1041 for the same application.

Vehicle Fitment

• Fits 2001-2006 BMW 325Ci, N/A, Bosch; 120 Amp
• Fits 2001-2006 BMW 325xi, N/A, Bosch; 120 Amp
• Fits 2001-2006 BMW 330Ci, N/A, Bosch; 120 Amp
• Fits 2001-2006 BMW 330xi, N/A, Bosch; 120 Amp
• Fits 2004-2006 BMW X3, N/A, Bosch; 120 Amp
• Fits 2001-2006 BMW X5, N/A, Bosch; 120 Amp
• Fits 2001-2005 BMW 320i, N/A, Alternator Diode Trio - 120 Amp
• Fits 2001-2005 BMW 325i, N/A, Bosch; 120 Amp
• Fits 2001-2005 BMW 330i, N/A, Bosch; 120 Amp
• Fits 2001-2005 BMW 525i, N/A, Bosch; 120 Amp
• Fits 2001-2005 BMW 530i, N/A, Bosch; 120 Amp
• Fits 1999-2002 BMW Z3, N/A, Bosch; 120 Amp
• Fits 2001 BMW 323i, N/A, Bosch Alternator

Installation Notes

Verify the alternator part number, connector style, terminal layout, and amperage rating before installation. This regulator mounts at the alternator and does not include hardware, instructions, or mounting brackets. Confirm the vehicle’s charging system diagnosis before replacing the regulator to avoid overlooking wiring, battery, or alternator faults.

Quality Assurance

Standard Ignition supplies electrical replacement components for charging and starting system service. VR-620 is built to match the listed connector, terminal, voltage, and alternator-mount specifications for the covered BMW applications.