1. Introduction
This manual provides essential information for the proper installation, operation, and maintenance of your DB Electrical ADR6016 Voltage Regulator. Please read these instructions carefully before proceeding with installation or use to ensure optimal performance and safety.
2. Product Overview and Compatibility
The DB Electrical ADR6016 is a 14.8V voltage regulator designed for use with various Delco alternators. It ensures that the alternator maintains a stable output voltage, which is crucial for proper vehicle electrical system function and battery charging.
Compatible Alternator Types:
- Delco 10SI
- Delco 12SI
- Delco 15SI
- Delco 17SI
- Delco 27SI Type 100 Alternators
Replaces OEM Numbers:
- AMERICAN MOTORS: 8125176
- ARROWHEAD: ADR6016
- ARROWHEAD (OEM): D1116392
- CATERPILLAR: 358228
- DELCO: 1116385, 1116387, 1116392, 1880088, D668
- IPM: 1A-6009
- J & N: 230-12114
- J & N (OLD): 230-12128
- LUCAS: UCB701
- MASSEY FERGUSON: 1052023M1
- REGITAR-USA: D668C
- RENARD: 11548, 5090
- YUNYI: DCR101HD

Figure 1: Top view of the DB Electrical ADR6016 Voltage Regulator, showing the terminals and mounting points.

Figure 2: Side view of the DB Electrical ADR6016 Voltage Regulator, illustrating its compact design.
3. Specifications
| Feature | Specification |
|---|---|
| Unit Type | Regulator |
| Voltage | 12 Volts |
| Set Point | 14.7 Volts |
| Activation | Ignition, A-Circuit |
| Grounding | Negative or Positive Ground |
| Terminal ID | Light-Sense |
| Model Number | ADR6016 |
| Dimensions | 3.2 x 2.4 x 4 inches |
| Item Weight | 1.23 ounces |
4. Installation
Safety Precautions:
- Always disconnect the vehicle's battery before beginning any electrical work to prevent electrical shock or damage to components.
- Ensure the vehicle is turned off and the ignition key is removed.
- Wear appropriate personal protective equipment (PPE), such as safety glasses and gloves.
General Installation Steps:
- Locate the Alternator: Identify the alternator in your vehicle. The voltage regulator is typically mounted on or within the alternator assembly.
- Remove Old Regulator: Carefully disconnect any wiring connected to the existing voltage regulator. Remove the mounting screws or clips securing the old regulator.
- Inspect Connections: Before installing the new regulator, inspect the alternator's brushes, slip rings, and other internal components for wear or damage. Replace any worn parts as necessary.
- Install New Regulator: Position the DB Electrical ADR6016 Voltage Regulator in place and secure it with the appropriate mounting hardware.
- Connect Wiring: Reconnect all wiring to the new regulator according to the vehicle's service manual. Ensure all connections are clean and secure. The terminal ID is Light-Sense.
- Reconnect Battery: Once the regulator is securely installed and all wiring is connected, reconnect the vehicle's battery.
- Test System: Start the vehicle and check the charging system. Verify that the alternator is producing the correct voltage (approximately 14.7 Volts) and that the battery is charging properly. Consult a professional if you are unsure about any step or if the system does not function correctly after installation.
Note: Specific installation procedures may vary depending on the vehicle make and model. Always refer to your vehicle's service manual for detailed instructions.
5. Operation
The voltage regulator is a critical component of the vehicle's charging system. Its primary function is to control the output voltage of the alternator, ensuring it remains within a safe and efficient range (approximately 14.7 Volts for this model). This prevents overcharging or undercharging of the battery and protects the vehicle's electrical components from voltage fluctuations.
Once installed, the regulator operates automatically. It senses the battery voltage and adjusts the alternator's field current to maintain the desired output. No user intervention is required during normal operation.
6. Maintenance
The DB Electrical ADR6016 Voltage Regulator is designed for long-term reliability and typically requires minimal maintenance. However, periodic checks of the overall charging system can help ensure its longevity and proper function:
- Battery Inspection: Regularly check your vehicle's battery for corrosion on terminals and ensure it is securely mounted.
- Belt Tension: Verify that the alternator belt is properly tensioned. A loose belt can lead to insufficient charging.
- Wiring Connections: Periodically inspect all wiring connections to the alternator and regulator for tightness and signs of corrosion or damage.
- Voltage Check: If you suspect an issue, use a multimeter to check the battery voltage with the engine running. It should be around 14.2-14.8 volts.
7. Troubleshooting
If you experience issues with your vehicle's charging system, the voltage regulator may be a contributing factor. Here are some common symptoms and potential solutions:
| Symptom | Possible Cause | Solution |
|---|---|---|
| Battery not charging / Low voltage | Faulty regulator, loose connections, worn alternator brushes, faulty alternator. | Check all wiring connections. Test alternator output. Replace regulator if faulty. Inspect alternator brushes. |
| Battery overcharging / High voltage | Faulty regulator. | Test system voltage with a multimeter. Replace regulator if voltage is consistently above 15V. |
| Charging system warning light on | Faulty regulator, alternator issue, wiring problem. | Check for diagnostic trouble codes. Inspect wiring. Test alternator and regulator. |
If troubleshooting steps do not resolve the issue, it is recommended to consult a qualified automotive technician.
8. Warranty Information
DB Electrical provides a 1-year warranty on this product from the date of purchase. This warranty covers defects in materials and workmanship under normal use. If the product fails within one year of your order due to a manufacturing defect, DB Electrical will replace it. Please contact customer support for warranty claims.
This warranty does not cover damage resulting from improper installation, misuse, neglect, accident, or unauthorized repair or modification.
9. Support and Contact
For technical assistance, warranty claims, or any questions regarding your DB Electrical ADR6016 Voltage Regulator, please contact DB Electrical customer support. Refer to the original purchase documentation or the DB Electrical website for the most current contact information.
You can also visit the DB Electrical Store on Amazon for more product information and support resources.
10. Related Product Information
For a general overview of starters and alternators, you may find the following video helpful. This video is provided by the seller, DB Electrical, and discusses their range of electrical components.
Video: An informational video from DB Electrical discussing their range of starters and alternators, highlighting their commitment to quality and performance.