Hummer Forums - Enthusiast Forum for Hummer Owners - Spark Plugs:- Has ACDelco 41-985 been replaced?

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oceanbrave

Jul 1, 2015 07:14 AM

Spark Plugs:- Has ACDelco 41-985 been replaced?

My guess is ACDelco 41-985 / GM 12571164 spark plugs have been superseded.

Can anyone help with a new or alternative part-number?

oceanbrave

Jul 3, 2015 03:30 AM

Well what do you know I've answered my own question.

Yes indeed AC Delco 41-985 has been replaced by AC Delco 41-110, GM changed the P/No. See this link

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