GAGT AC spark plugs [Archive] - Forum


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05-22-2004, 12:35 PM
The manual & dealer ship recommend 41-940 plugs, same as other 3.4's.
The plugs in my 2000 GAGT are 41-952. The ACDELCO site does not even list these plugs. Any suggestions?

05-22-2004, 01:37 PM
I'd go with what the dealer recommends. GM upgraded the plugs to Iridium-tipped electrodes in 2003 (I think) from the platinum plugs that your car originally came with.