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GM Original Equipment
AC Delco switches are engineered to meet all the high standards set by the industry.
  • Optimizes engine performance by working with the vehicle's electronics closely
  • Tested under extreme and unusual conditions
  • Assured high quality and reliability for trouble-free operation and performance
Regular production option (RPO) codes designate the various features/options with which your vehicle was originally built. RPO codes are three characters long. The RPO code list will be on a sticker, sometimes referred to as the "Service Parts Identification" sticker.It is typically located in the glove box compartment or near the spare tire.

If the part listing designates an RPO code, look on your Service Parts sticker prior to ordering to ensure fit.

Example of a RPO / Service Parts ID sticker:
Alternate/OEM Part Number(s): 16189541

Warranty Information:
24 Month / Unlimited Mile Limited Warranty on parts sold on or after 04/01/18; 12 Months on parts sold before 04/01/18.
Warranty Details