Spark plug for 98 GMC Sierra had 41-932 hard to get

[pitterpat]

98 GMC Sierra 2wd 5.7:

What plug are you supposed to use for this truck now? In the book it says 41-932 however they are now hard to find. Has GM put or a recommendation for new plugs? I had them changed a couple of years ago and they put in 41-932's then.

[newdude]

The catalog shows 19256067 (ACDelco 41-993) Iridium plugs. There is also an ACDelco 12 plug (19250970) not sure if that is copper or not though.

[pitterpat]

The catalog shows 19256067 (ACDelco 41-993) Iridium plugs. There is also an ACDelco 12 plug (19250970) not sure if that is copper or not though.

Which catalog are you talking about? Thanks.