Spark Plugs

[Crush1]

Originally Posted by c4c5specialist

HI there,

The correct spark plugs are ACDelco 41-110.

They are Iridium tipped and should last a good long time.

We usually inspect them every 30k, but they usually do not require replacement for 100,000 miles.

Allthebest, c4c5

C4C5: What is the GM part number for the ACDelco 41-110 plug? I am a little confused because my owners manual on my 2006 (VIN 1G1YY36U365112089) says GM 12571164, ACDelco 41-985. I am aware that the P/N 12571164 has been changed but I get differing part numbers to replace it when I visit different on line GM parts sellers. One leading GM on line parts vendor came back at me, when I provided the above VIN, with GM 19250965 as the correct plug but he didn't give me the ACDelco number. I would appreciate a little education. Has there been multiple P/N changes on the recommended GM plug?

Thanks in advance.