My Garage
Cart

Genuine Acura Legend Voltage Regulator

Adjustable Voltage Regulator
  • Select Vehicle by Model
  • Select Vehicle by VIN
Select Vehicle by Model
Make
Model
Year
or
Select Vehicle by VIN
For the most accurate results, select vehicle by your VIN (Vehicle Identification Number).

1 Voltage Regulator found

  • Acura Legend Voltage Regulator - 31150-PR7-J01
    Diagram for Acura Legend Voltage Regulator - 31150-PR7-J01
    View related parts

    Acura Legend Regulator Assembly

    Part Number: 31150-PR7-J01
    $446.20 MSRP: $637.25
    You Save: $191.05 (30%)
    Ships in 1-3 Business Days
    ADD TO CART
    Product Specifications
    • Other Name: Voltage Regulator; Regulator
    • Replaces: 31150-PD6-024, 31150-PD6-004, 31150-PD6-014, 31150-PR7-A01
    • Warranty: This genuine part is guaranteed by Acura's factory warranty.

Acura Legend Voltage Regulator

The Acura Legend Voltage Regulator maintains control of the charging system by maintaining an alternator output voltage of around 13.5 to 14.5 volts to protect the battery and all of the circuits on board from harmful surges. In the early years, the sedan and coupe applied an externally mounted mechanical Voltage Regulator that had spring-loaded contact points. It monitored battery drop and bumped field current and increased voltage, but contact wear sometimes allowed the Acura electrics to overcharge and put pressure on a proud Legend owner's battery. Engineers replaced this setup with a solid state Voltage Regulator packed with transistors that switch thousands of times per second, delivering a steadier control while eliminating moving parts. Later generations had an internal Voltage Regulator inside the alternator, reducing the wiring clutter on the Acura engine bay. Modern models leave the same task to the Powertrain Control Module, which now takes into consideration battery temperature, ambient heat, and engine load before setting field current, giving the Legend family smarter voltage moderation than the simple on-off logic of its predecessors. Regardless of the style, each Voltage Regulator follows the same idea, senses system demand, varies magnetic field strength, and feeds each Acura Legend device exactly the volts it wants.

We provide a broad range of OEM Acura Legend Voltage Regulator at unbeatable prices on our website. For your OEM parts, You can count on the guaranteed quality, manufacturer's warranty, outstanding customer service, and prompt delivery. We look forward to your visit.

Acura Legend Voltage Regulator Parts Questions & Experts Answers

  • Q: How to inspect, replace, and reassemble alternator brushes and the voltage regulator on Acura Legend?
    A:
    Do not attempt to overhaul the Alternator; if replacing the brushes and regulator does not resolve the issue, take it to a dealer for rebuilding or exchange it for a rebuilt unit. Begin by removing the alternator and placing it on a clean workbench. Next, take off the three rear cover nuts, the nut and terminal insulator, and the rear cover. After that, remove the five screws that secure the voltage regulator and brush holder. Then, take out the brush holder and the regulator from the rear end frame. If only the regulator is being replaced, install the new unit, reassemble the alternator, and install it on the engine. If replacing the brushes, measure the exposed length of each brush and compare it to the specified minimum length; replace any brush that is shorter than the minimum. Ensure that each brush moves smoothly in the brush holder, then install the brush holder by depressing each brush with a small screwdriver to clear the shaft. Secure the voltage regulator and brush holder screws into the rear frame, followed by the installation of the rear cover, tightening the three nuts securely. Finally, install the terminal insulator and tighten it with the nut before reinstalling the alternator.

Related Acura Legend Parts