How do you find original ACDelco part numbers

Auto Parts, Car Parts, GM Parts & Truck Parts | ACDelco

ACDelco 15-72971 GM Original Equipment Temperature Mode Valve Actuator Assembly

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  • Locate the Delco-Remy identification tag or sticker. At the factory, Delco-Remy places an identification tag on the alternator housing. This tag contains the Delco-Remy model number, the AC Delco part number and alternator specifics, such as voltage and amperage. The ID tag contains the necessary information for proper identification of the Delco-Remy alternator.

    Identify the differences between Delco-Remy and GM alternators. Differences between alternators with the same model number exist, mostly concerning the amount of power, or amperage, the alternator produces. Vehicles with many electrical devices and options require an alternator with a larger amperage rating. The amperage rating is found on the ID tag, and can be referenced by using the AC Delco part number. For example, the Delco part number "321-39" identifies a model 10SI with a 63 amp rating. Always use the AC Delco part number when referencing the alternator, or dealing with a parts or service department.

  • For lawn and garden use, ACDelco Specialty part numbers ACDU1-300 and ACDU1R300 also are available now, and carry a 12-month free replacement warranty.

The AC Delco Spark Plug Decoder Table