R83CT AC Delco GMC Engine Spark Plug

R83CT AC Delco Engine Spark Plug.

Equivalent to Autolite 124; Champion RF10C; NGK AR6FS.

Please check the part numbers for your fitment needs. If you are unsure whether this part fits your model, please contact us with your serial number and we can help determine if it is right for your engine. Thanks for looking!!!

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