• ACDelco Professional Voltage Regulator-Primary View
  • ACDelco Professional Voltage Regulator-Alternate View 1
  • ACDelco Professional Voltage Regulator-Alternate View 2


  • Professional, premium aftermarket replacement
  • Provides the performance and dependability you expect from ACDelco
  • Manufactured to meet expectations for fit, form, and function


ACDelco GM OE Voltage Regulator
ACDelco Ignition

An ACDelco Professional, premium aftermarket Voltage Regulator is the ideal high quality replacement for your GM vehicle. It monitors the proper voltage to your vehicle's critical systems as the starting and charging system starts the engine, maintains the battery's charge, and provides power to the electrical accessories while the engine is running. An ACDelco Professional Voltage Regulator provides outstanding radio noise control for better performance, delivers needed system voltage, and provides the proper fit and function to let your vehicle run the way it was designed. This premium aftermarket replacement voltage regulator is manufactured to meet or exceed your expectations for fit, form, and function.


12 Months/12,000-mile Limited Warranty*

*Whichever comes first.To the original retail purchaser. Parts only; installation not included. See your local retailer or independent service center that offers ACDelco parts for details.


Is there a problem when my 'Service Engine Soon' light appears?

When your 'Service Engine Soon' light illuminates, that is an indication that there is a potential issue with the drivability, electronics, or emissions of your engine.

While investigating what triggered the 'Service Engine Soon' light, do you recommend any additional services?
Preventative maintenance should be referenced in your owner's manual, and, while repairing or having your 'Service Engine Soon' light repaired, if your vehicle is due for maintenance, yes. As described in your owner's manual, this maintenance will help prevent future issues.

If I don't investigate the problem, will the light turn off by itself?
Possibly. Sometimes, the triggering device will reset itself thus turning off the 'Service Engine Soon' light until that device/sensor is tested by the vehicles on board computer again. If it fails the test again when tested, the 'Service Engine Soon' light will illuminate once again. Some devices/sensors when tested and failed will illuminate the 'Service Engine Soon' and it will not go out until correct service work is performed.

If I ignore the light, will there be consequences?
General Motors has designed the vehicle to inform its driver if there is an issue with certain devices/sensors that effect the drivability/emissions. If this is ignored, there is a possibility that the drivability will suffer, fuel economy will be decreased, or the emissions being emitted will be increased. Do not ignore the 'Service Engine Soon' light.

Is it possible for my vehicle to pass an emissions test if the 'Service Engine Soon' light is on?
No. When state and local officials perform certified emission tests, one of the first steps in the process is to inspect for a 'Service Engine Soon'. If it is on, it will automatically fail the test.

Does the 'Service Engine Soon' light tell me when my vehicle needs a tune-up?
No. The 'Service Engine Soon' is related to engine emissions and drivability conditions. Please refer to your owner's manual maintenance schedule for information pertaining to tune up time intervals.


Having your service technician regularly inspect your ignition system can help you stay away from conditions that may result in poor performance or reduced fuel economy.




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