Harley-Davidson 12 Volt Black Finish, Voltage Regulator Rectifier for Dyna 74631-08
Harley-Davidson 12 Volt Black Finish, Voltage Regulator Rectifier for Dyna 74631-08
Harley-Davidson 12 Volt Black Finish, Voltage Regulator Rectifier for Dyna 74631-08

Harley-Davidson 12 Volt Black Finish, Voltage Regulator Rectifier for Dyna 74631-08

Item #: 230-22131

30-DAY RETURN POLICY

If your order arrives and it’s not exactly what you want, you may return it within 30 days for a refund. We know that people sometimes order a part and then discover it’s not exactly the one they need for the repair. We understand and want to work with you. Just make sure the item is in its original packaging and in good condition free of damage.

When a returned product comes back to us, we’ll check it over to make sure it’s in ‘Like New’ condition and free from damage such as dents, scratches, cracks, abuse, defacement or indication of removed screws/fasteners or seals. Return processing may take up to 5 business days from the time your product is received by DB Electrical.

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DB Electrical Voltage Regulators for Harley Davidson protect your electrical system
  • Maintains a consistent and manageable output of voltage
  • Controls the flow of electric between the alternator and battery
  • Engineer tested to ensure optimal performance
  • Direct-fit matches OEM specifications for easy installation
  • Factory direct, money-saving pricing keeps more money in your pocket
Check if this fits your vehicle
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  • Product Info
  • Applications List
  • Part Replacement List
  • Policy Information
  • Reviews

Overview

DB Electrical Voltage Regulators for Harley Davidson Motorcycles
The electrical system of your Harley Davidson motorcycle is a finely engineered system. That’s why DB Electrical offers best-of-class voltage regulators to protect the electrical components in your bike. These voltage regulators meet leading industry standards to deliver optimal electrical system protection.

We work directly with factories to ensure these voltage regulators are manufactured to our exacting quality control standards that meet genuine OEM specifications. But because there is no middleman, we can offer these exceptional-quality electrical components at low factory direct prices. If you comparison shop, you might save anywhere from 30 to 50 percent off the price of a voltage regulator purchased at a Harley Davidson dealer.

Purpose of a Voltage Regulator
A voltage regulator is a seemingly simple component, but it performs one of the most vital tasks in your vehicle’s electrical system. As the name suggests, the voltage regulator maintains a consistent and manageable output of voltage passing through the system. As the alternator or generator produces power, the voltage regulator controls the voltage capacity that goes to the battery. If too much voltage is allowed to pass, it can cause damage to the battery, wiring system and other electrical accessories.

With DB Electrical voltage regulators, you’ll get …

  • OEM Quality Every Time – Our aftermarket voltage regulators deliver performance that’s equivalent to the ones made by OEM suppliers.
  • Direct-Fit OEM Replacement Parts – DB Electrical aftermarket voltage regulators are designed for perfect fitment to replace the one that originally came with your vehicle.
  • Engineer-Tested Excellence – Our voltage regulators go through a rigorous testing program to ensure optimal performance.

Reasons to choose DB Electrical for your next voltage regulator:

  • Premium materials – Higher quality delivers exceptional performance.
  • Long-term reliability –Long service life to keep your vehicle’s electrical system running better for a longer time.
  • Brand new – Never settle for a secondhand one.

The DB Electrical Advantage – 1-Year Warranty
DB Electrical delivers exceptional value for products that we stand behind with our total-confidence 1-year warranty. Yes, you have a full year to make sure your voltage regulator meets your expectations.

Item Number: 230-22131

100% Brand New Aftermarket Part From DB Electrical

Product Specs

Item ConditionAftermarket Part
Unit TypeVoltage Regulator / Rectifier
Rotation14.5

Applications List

Select Make & Type
MAKE TYPE MODEL YEAR ENGINE
HARLEY-DAVIDSONMotorcycleFLD Dyna Switchback20121584cc
HARLEY-DAVIDSONMotorcycleFLD Dyna Switchback20131584cc
HARLEY-DAVIDSONMotorcycleFLD Dyna Switchback20141584cc
HARLEY-DAVIDSONMotorcycleFLD Dyna Switchback20151584cc
HARLEY-DAVIDSONMotorcycleFLD Dyna Switchback20161584cc
HARLEY-DAVIDSONMotorcycleFXD Dyna Super Glide20081584cc
HARLEY-DAVIDSONMotorcycleFXD Dyna Super Glide20091584cc
HARLEY-DAVIDSONMotorcycleFXD Dyna Super Glide20101584cc
HARLEY-DAVIDSONMotorcycleFXDB Dyna Street Bob20081584cc
HARLEY-DAVIDSONMotorcycleFXDB Dyna Street Bob20091584cc
HARLEY-DAVIDSONMotorcycleFXDB Dyna Street Bob20101584cc
HARLEY-DAVIDSONMotorcycleFXDB Dyna Street Bob20111584cc
HARLEY-DAVIDSONMotorcycleFXDB Dyna Street Bob20121584cc
HARLEY-DAVIDSONMotorcycleFXDB Dyna Street Bob20131584cc
HARLEY-DAVIDSONMotorcycleFXDB Dyna Street Bob20141584cc
HARLEY-DAVIDSONMotorcycleFXDB Dyna Street Bob20141690cc
HARLEY-DAVIDSONMotorcycleFXDB Dyna Street Bob20151584cc
HARLEY-DAVIDSONMotorcycleFXDB Dyna Street Bob20151690cc
HARLEY-DAVIDSONMotorcycleFXDB Dyna Street Bob20161690cc
HARLEY-DAVIDSONMotorcycleFXDB Dyna Street Bob20171690cc
HARLEY-DAVIDSONMotorcycleFXDBA Dyna Street Bob20131584cc
HARLEY-DAVIDSONMotorcycleFXDBA Dyna Street Bob20131690cc
HARLEY-DAVIDSONMotorcycleFXDBB Dyna Street Bob20141690cc
HARLEY-DAVIDSONMotorcycleFXDBB Dyna Street Bob20151584cc
HARLEY-DAVIDSONMotorcycleFXDBB Dyna Street Bob20151690cc
HARLEY-DAVIDSONMotorcycleFXDBP Dyna Street Bob20131690cc
HARLEY-DAVIDSONMotorcycleFXDBP Dyna Street Bob20141690cc
HARLEY-DAVIDSONMotorcycleFXDBP Dyna Street Bob20151690cc
HARLEY-DAVIDSONMotorcycleFXDBP Dyna Street Bob20161690cc
HARLEY-DAVIDSONMotorcycleFXDC Dyna Super Glide Custom20081584cc
HARLEY-DAVIDSONMotorcycleFXDC Dyna Super Glide Custom20091584cc
HARLEY-DAVIDSONMotorcycleFXDC Dyna Super Glide Custom20101584cc
HARLEY-DAVIDSONMotorcycleFXDC Dyna Super Glide Custom20111584cc
HARLEY-DAVIDSONMotorcycleFXDC Dyna Super Glide Custom20121584cc
HARLEY-DAVIDSONMotorcycleFXDC Dyna Super Glide Custom20131584cc
HARLEY-DAVIDSONMotorcycleFXDC Dyna Super Glide Custom20141584cc
HARLEY-DAVIDSONMotorcycleFXDC Dyna Super Glide Custom20141690cc
HARLEY-DAVIDSONMotorcycleFXDC Dyna Super Glide Custom Anniv.20131584cc
HARLEY-DAVIDSONMotorcycleFXDF Dyna Fat Bob20081584cc
HARLEY-DAVIDSONMotorcycleFXDF Dyna Fat Bob20091584cc
HARLEY-DAVIDSONMotorcycleFXDF Dyna Fat Bob20101584cc
HARLEY-DAVIDSONMotorcycleFXDF Dyna Fat Bob20111584cc
HARLEY-DAVIDSONMotorcycleFXDF Dyna Fat Bob20121584cc
HARLEY-DAVIDSONMotorcycleFXDF Dyna Fat Bob20121690cc
HARLEY-DAVIDSONMotorcycleFXDF Dyna Fat Bob20131584cc
HARLEY-DAVIDSONMotorcycleFXDF Dyna Fat Bob20131690cc
HARLEY-DAVIDSONMotorcycleFXDF Dyna Fat Bob20141584cc
HARLEY-DAVIDSONMotorcycleFXDF Dyna Fat Bob20141690cc
HARLEY-DAVIDSONMotorcycleFXDF Dyna Fat Bob20151584cc
HARLEY-DAVIDSONMotorcycleFXDF Dyna Fat Bob20151690cc
HARLEY-DAVIDSONMotorcycleFXDF Dyna Fat Bob20161584cc
HARLEY-DAVIDSONMotorcycleFXDF Dyna Fat Bob20161690cc
HARLEY-DAVIDSONMotorcycleFXDF Dyna Fat Bob20171584cc
HARLEY-DAVIDSONMotorcycleFXDF Dyna Fat Bob20171690cc
HARLEY-DAVIDSONMotorcycleFXDFSE CVO Dyna Fat Bob20091803cc
HARLEY-DAVIDSONMotorcycleFXDFSE2 CVO Dyna Fat Bob20101803cc
HARLEY-DAVIDSONMotorcycleFXDL Dyna Low Rider20081584cc
HARLEY-DAVIDSONMotorcycleFXDL Dyna Low Rider20091584cc
HARLEY-DAVIDSONMotorcycleFXDL Dyna Low Rider20101584cc
HARLEY-DAVIDSONMotorcycleFXDL Dyna Low Rider20111584cc
HARLEY-DAVIDSONMotorcycleFXDL Dyna Low Rider20121584cc
HARLEY-DAVIDSONMotorcycleFXDL Dyna Low Rider20131584cc
HARLEY-DAVIDSONMotorcycleFXDL Dyna Low Rider20141690cc
HARLEY-DAVIDSONMotorcycleFXDL Dyna Low Rider20151584cc
HARLEY-DAVIDSONMotorcycleFXDL Dyna Low Rider20151690cc
HARLEY-DAVIDSONMotorcycleFXDL Dyna Low Rider20161584cc
HARLEY-DAVIDSONMotorcycleFXDL Dyna Low Rider20161690cc
HARLEY-DAVIDSONMotorcycleFXDL Dyna Low Rider20171584cc
HARLEY-DAVIDSONMotorcycleFXDL Dyna Low Rider20171690cc
HARLEY-DAVIDSONMotorcycleFXDLS Dyna Low Rider S20161803cc
HARLEY-DAVIDSONMotorcycleFXDLS Dyna Low Rider S20171803cc
HARLEY-DAVIDSONMotorcycleFXDSE2 CVO Dyna20081803cc
HARLEY-DAVIDSONMotorcycleFXDWG Dyna Wide Glide20081584cc
HARLEY-DAVIDSONMotorcycleFXDWG Dyna Wide Glide20091584cc
HARLEY-DAVIDSONMotorcycleFXDWG Dyna Wide Glide20101584cc
HARLEY-DAVIDSONMotorcycleFXDWG Dyna Wide Glide20111584cc
HARLEY-DAVIDSONMotorcycleFXDWG Dyna Wide Glide20121584cc
HARLEY-DAVIDSONMotorcycleFXDWG Dyna Wide Glide20121690cc
HARLEY-DAVIDSONMotorcycleFXDWG Dyna Wide Glide20131584cc
HARLEY-DAVIDSONMotorcycleFXDWG Dyna Wide Glide20131690cc
HARLEY-DAVIDSONMotorcycleFXDWG Dyna Wide Glide20141584cc
HARLEY-DAVIDSONMotorcycleFXDWG Dyna Wide Glide20141690cc
HARLEY-DAVIDSONMotorcycleFXDWG Dyna Wide Glide20151584cc
HARLEY-DAVIDSONMotorcycleFXDWG Dyna Wide Glide20151690cc
HARLEY-DAVIDSONMotorcycleFXDWG Dyna Wide Glide20161584cc
HARLEY-DAVIDSONMotorcycleFXDWG Dyna Wide Glide20161690cc
HARLEY-DAVIDSONMotorcycleFXDWG Dyna Wide Glide20171690cc
HARLEY-DAVIDSONMotorcycleFXDWG Dyna Wide Glide Anniv.20081584cc

Replaces These Part Numbers

ARROWHEADAHD6021
HARLEY-DAVIDSON74631-08, 74631-08A
J&N Electrical Products230-22131
J&P CYCLES383-574
TEMCOTM-RE-192

Frequently Asked Questions

Q: Why do we need a voltage regulator in the charging system? A: A voltage regulator is crucial in the charging system to ensure a stable voltage output, protect sensitive electronics from damage due to voltage fluctuations, and control the charging rate of the battery for optimal performance and longevity.

Q: What are the different types of regulators?
A: There are three main types of regulators.

  • Internal regulators. Mounted inside or on the alternator itself.
  • External regulators. You will find these mounted on a firewall or inner fender well.
  • Adjustable regulators. These regulators have adjustable set points offering flexibility in voltage adjustment for precise control in specific applications. Depending on the specific model of regulator, they can be internal or externally mounted.
Q: What is a voltage set point.
A: A voltage set point refers to the predetermined or specified voltage level at which a voltage regulator aims to maintain the output voltage. It is a predefined reference voltage that the regulator uses as a target, adjusting its operation to ensure the output voltage closely matches this set point. The voltage set point is a crucial parameter in voltage regulation systems, helping maintain stability and reliability in electrical circuits and devices.

Q: Why does an alternator charge at 14v on a 12-volt system.
A: Alternators charge at 14 volts to generate sufficient voltage for the operation of the electrical system. The only way to charge a battery and use voltage while the car is running is to back in more voltage than is being discharged. In simple terms, it needs to generate more voltage than is being used.

Q: What causes a regulator to fail?
A: Voltage regulator failure can result from overloading, voltage spikes, overheating, contamination, age and wear, incorrect voltage, and the use of poor-quality components. Proactive maintenance and timely issue resolution are key to preventing failure and ensuring a reliable electrical system.

Q: How do I test my regulator?
A: To test your regulator:
  1. Measure voltage across the battery terminals with a multimeter while the engine is running (13.5 to 14.5 volts is normal).
  2. Rev the engine to observe voltage response.
  3. Check for AC voltage to detect potential alternator issues.
  4. Conduct a visual inspection for damage or loose connections.
  5. Use a temperature gun to check for excessive heat during operation.
  6. Refer to the service manual for specific testing procedures and voltage specifications.
  7. If unsure or encountering issues, seek professional assistance for more in-depth analysis and testing.

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