Restoration Correct Original AC Delco Part Correct in Fit And Finish Fits V8 Engine Applications Also Fits Trans Am Made In USA Is the Mass Airflow Sensor Relay failed on your 1986, 1987 Firebird? The same part Pontiac used on your part when it came off the assembly line. A relay is an electrically operated switch. Many relays use an electromagnet to operate a switching mechanism mechanically, but other operating principles are also used. Relays are used where it is necessary to control a circuit by a low-power signal (with complete electrical isolation between control and controlled circuits), or where several circuits must be controlled by one signal.
Vehicle Fitment:
The Vehicle Fitment Guide is to be used as a general reference. The data has been provided by our suppliers and manufacturers and may contain errors or incorrect data. Always refer to a professional to verify correct fitment for your vehicle.
IMPORTANT: Electrical items are covered by a 30 day EXCHANGE ONLY WARRANTY. There are no returns or refunds on such items.
