Standard Ignition VR-771 voltage regulator for the 2004-2009 Mazda 3 4-cylinder 2.0L or 2.3L and other vehicles controls the alternator's charging output. It holds charging voltage in check so the battery and the rest of the electrical system get steady power.
- Electronic circuit board encapsulated in epoxy to resist failure from vibration and corrosion of electrical connections
- Circuit board made in-house by Standard Ignition for precise operation and a longer service life
- High grade materials for extended service life
- Rectangular female connector with two male blade terminals
Quick facts
- Part: Standard Ignition VR-771 voltage regulator
- Fits: 2004-2009 Mazda 3 4-cylinder 2.0L or 2.3L and other vehicles
- Condition: New
A failing regulator can show up as a battery that keeps running down, dim or flickering lights, or a charging warning light. Before you replace the regulator, rule out a weak battery, loose or corroded cable connections and a worn alternator, since each of them can produce similar symptoms. The alternator takes one regulator.
Fits
This regulator is listed for a wide range of Mazda models, including the 2006-2007 Mazda 5 4-cylinder 2.3L and the 2004-2006 Mazda RX-8 rotary 1.3L. If your Mazda is a different model or year, look it up in the "Vehicles it fits" section before you order.
Specifications
Fit and size
- Mounting location: alternator
- Quantity per application: 1
- Voltage: 12 V
- Connector: rectangular, female, 1 connector
- Terminals: 2 male blade
Build and materials
- Circuit board: encapsulated in epoxy
- Condition: New
- Country of origin: Japan
In the box
One voltage regulator with its hardware. A mounting bracket and instructions are not included.
Interchange: R2019 · VR977 · VR1079 · Z59918W70
Product information is for general reference and may contain errors. See our Disclaimer.
This part cross-references / interchanges with the following part numbers:
R2019, VR977, VR1079, Z59918W70, VR-771
Frequently Asked Questions
Is the VR-771 the right Mazda 3 voltage regulator for a 2004-2009 Mazda 3 4-cylinder 2.0L or 2.3L?
Yes. Standard Ignition VR-771 is listed for the 2004-2009 Mazda 3 with the 4-cylinder 2.0L or 2.3L, and each of those cars takes one regulator.
Does the VR-771 fit the 2004-2006 Mazda RX-8 rotary 1.3L?
Yes. The Standard Ignition VR-771 is listed for the 2004-2006 Mazda RX-8 with the rotary 1.3L, one regulator per vehicle.
What hardware comes with this voltage regulator, and what is left out?
The regulator comes with its hardware. A mounting bracket and an instruction sheet are not included.
What voltage and connector does the VR-771 use?
The Standard Ignition VR-771 is a 12-volt regulator with one rectangular female connector and two male blade terminals.
What symptoms can a failing alternator voltage regulator cause?
Symptoms can include a battery that keeps running down, lights that dim or flicker and a charging warning light. A shop can test the charging system to see whether the regulator is involved.
