2016 Malibu LT with 1.5L L4 Turbo: Vin T
RockAuto shows ACDelco 41156 and NGK 91970
Advance Auto ACDelco 41156
ACDelco Catalog says 41156
Autozone says NGK 91970

I saw different numbers elsewhere so decide to pull a plug to see what was in it. 41153.
While the Delco catalog could be wrong, thus making all the other listings incorrect, it is entirely possible that in it's 60k mile life before I got it someone put these plugs in it.
Some place that list the specs for the two, don't seem to make sense (hex size likely too big for the application).
Also, no parts stores seem to carry them to look at them, all have to be ordered.

Which is correct 41153 or 41156?

Thanks
Toby

 

Rockauto list 41156 as the correct plug. You can also check your owners manual.


https://www.rockauto.com/en/catalog/...park+plug,7212

 

Manual says 1.5L L4 Turbo is 41123 - which is the other number I saw listed in places.

If you noticed in my post, I listed Rockauto and others as indicating 41156 as the correct plug, but I don't see any indication that is a replacement for the other numbers (41123 in the manual and 41153 that is in the vehicle now). Not clear if the 41156 listing are due to an incorrect ACDelco listing.