Keep the charging system on your 1997-1998 Nissan Maxima (V6-3.0L) putting out steady 12-volt power with the Standard Ignition Voltage Regulator VR-597. A voltage regulator manages the alternator's output so charging voltage stays within the proper range as engine speed and electrical load change; if a failed regulator is the cause of overcharging, undercharging, or flickering lights, this drops in as a direct-fit replacement for the listed application.
- Epoxy-encapsulated PC board: the electronic circuit board is sealed in epoxy to improve performance and resist failures caused by vibration and corrosion of electrical connections.
- Precise, durable operation: premium components and Standard Ignition's own manufactured circuit board support reliable regulation and extra durability for a longer service life.
- High-grade materials: the starting and charging system build uses high-grade materials for extended service life.
- Fitment details: 12-volt unit with a single rectangular female connector and five male blade / eye-ring terminals; mounts at the alternator. Hardware, mounting brackets, and instructions are not included.
Country of origin: Japan.
Interchange: R2101 · VR936 · VR1051 · 2321531U05. Manufacturer part number VR-597.
This part cross-references / interchanges with the following part numbers:
Frequently Asked Questions
What vehicle does the VR-597 fit?
It's a direct-fit replacement for the 1997-1998 Nissan Maxima with the V6-3.0L engine. Check the Buyer's Guide tab to confirm it matches your vehicle.
What does a voltage regulator do?
It manages the alternator's output so the charging system voltage stays within the proper range as engine speed and electrical demand change.
What are signs this regulator may need replacing?
Overcharging or undercharging, dim or flickering lights, or a battery that won't stay charged can be signs. Diagnose the charging system first to confirm the regulator is the cause.
Is mounting hardware included?
No. Hardware, mounting brackets, and instructions are not included. Consult the vehicle service information for the correct fasteners and whether they may be reused.
What numbers does this regulator interchange with?
It cross-references R2101, VR936, VR1051, and 2321531U05. Its own manufacturer part number is VR-597.
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