Does anyone know the correct mfgr and number for spark plugs for an 8100?? I have a '01 2500HD, 8100, CC, SB, 4x4, and it came with Nippon Denso plugs, but I can't find them anywhere. THe newer trucks may not use the Denso plug, and I'll use whatever they're using now if I can find out what it is.

Thanks.

 

Original plug is:

DENSO TJ14R-P15 SET GAP AT .060

Or replace it with:

AC DELCO 41-932

 

Thanks, gmsuv!!

I bought the Delco 41-932's and they are identical to the Denso's, but without the Denso name. I ought to be good for another 40K miles.

 

I have a 2003 2500hd with a 8.1 will my 8.1 take these same plugs or should i get platnium plugs i read every where that it came with platniums are iridiums ok i havent taken my plugs out yet would rather wait until i have the replacement plugs and wires in my hand incase i break a wire or plug then i wont have a truck to drive thanks