ERCK - External Regulator Conversion Kit for Your Chrysler, Dodge, or Jeep Vehicle

Computer ECU Regulator Bypass kits
Chrysler Voltage Regulator Kit
Dodge Voltage Regulator Kit
Jeep Regulator Kit 
Install a High Output Alternator with External Voltage Regulator on your Dodge, Chrysler and Jeep Cars and Trucks

SAVE TIME & MONEY, Gets your high output external regulator alternator working when your have a broken field control function in your cars "brain box", Bypass the ECU with our External Regulator Conversion Kit and get your Charging System Working.


This kit can also be used to prevent damage to your ECU from a High Output Alternator with external regulator. Also, can be used as a wiring harness and external alternator regulator replacement kit for any 1987 and earlier Chrysler Round and Square back alternator with external regulator and dual insulated brushes.  Can be used on the Chrysler Square Back, Nippondenso External Regulated, Bosch External Regulated, Mitsubishi External Regulated units.


The Problem

Since 1987 for Dodge and Chrysler and 1991 for Jeep, vehicles have external regulator alternators that are controlled by the Alternator Voltage Control Module inside the Engine Control Unit, ECU. This is often called the ECC, ECM, EEC, or PCM. Often, especially after installing a high output alternator with external voltage regulator, the alternator voltage control module in the ECU will fail, leaving you with a dead charging system where your external regulator alternator doesn't work, or doesn't work the way it should , yet your engine runs fine. Before our external voltage regulator conversion kit the entire ECU would need replacement at a cost of between $300 and $1600.....plus labor!

The Solution

In order to avoid costly ECU repairs, you can simply bypass the field voltage control module using our simple external voltage regulator conversion kit.

Quick Start's

External Voltage Regulator Conversion Kit

We now provide all you need to get your Chrysler family vehicle's charging system working or get a high voltage condition back in control plus you can prevent ECU failure from installing a high output alternator. The External Voltage Regulator Conversion Kit comes complete with a reliable Adjustable, External Voltage Regulator. With the External Regulator kit you can save hundreds of dollars on costly ECU repairs and vehicle down time..

ECU troubleshooting: If the battery voltage is between 12.8V and 14.7V, your ECU Power Module should be fine. If you unit is not working or your battery voltage is above 15 volts you have a problem with your ECU. If your voltage is low you may have an ECU problem or your bridge rectifier in the alternator is failing.

external alternator regulator kit


ECU Altenator Field Module Troubleshooting

  1. Start the Vehicle, Jump Start If Neccessary
  2. Check Voltage At Battery, Should Be Between 12.8V and 14.7V
  3. Check Alternator Field Current, Using Two Small Terminals Below Positive Power
  4. Alternator Field Should be About 5V
  5. Turn On Headlights, Radio, and All Other Power Accessories
  6. Alternator Field Should be About 10V


Order Today

To purchase just click on the "Add to Cart" button.  You will be redirected to the product page on our store website, with the product already in the cart for you, you do not need to click on the "buy" button, check the cart on the right side of the page. Be sure to check your purchase quantity before continuing going through the checkout process. You can choose USPS priority or FedEx Ground for shipping. We accept VISA, Master Card, American Express and Paypal.
Note: Your check engine light may come on when using this product.

For Chrysler and Dodge vehicles after 1987 and Jeep vehicles after 1991; This kit can be used to prevent damage to your ECU from a High Output Alternator with External Regulator.  

Also, this product can be used as a wiring harness and external voltage regulator replacement kit for any 1987 and earlier Chrysler Family vehicle alternator with dual insulated brushes. Can be used on the Chrysler Square Back, Nippondenso External Regulated, Bosch External Regulated, Mitsubishi External Regulated units.



ERCK - External Regulator Conversion Kit
add price part # description



erck kit complete with frm
$64.95 ERCK-FRM

Chrysler, Dodge, Jeep External Voltage Regulator Conversion Kit and Field Replacement Module. Gets your alternator working when the alternator voltage control part of your vehicles computer fails, FRM prevents a check engine light.

Kit includes: C8313 Heavy Duty (up to 10 amp field) Adjustable Voltage Regulator, W210 Wiring Harness with factory type weather-tite plug for the external voltage regulator, and heavy duty Field Replacement Module - FRM




external regulator conversion kit
$54.95 ERCK Chrysler, Dodge, Jeep External Voltage Regulator Conversion Kit. Gets your alternator working when the alternator voltage control part of your vehicles computer fails, ERCK does NOT prevent a check engine light.



field replacement module
$19.95 FRM This module acts like a field circuit to trick your PCM's field control unit into thinking the alternator is still attached, getting rid of the associated fault code.



c8313 heavy duty voltage regulator
$34.95 C8313 Voltage Regulator, HEAVY DUTY , 12 Volt, A-Circuit, Negative Ground., Red Plug Connector, 14.3 Voltage set point, Adjustable Voltage.



w210 wiring harness
$34.95 W210 Wiring harness for use with the C8313 voltage regulator. Used in our ERCK External Regulator Conversion Kit.
Note: Without the Field Replacement Module - FRM - you will have a check engine light. If you do not care about this light, you can order the regular ERCK. If you don't want this light, install the ERCK-FRM combo.

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