critter

iTrader: (9)

I'm looking for plugs, and the convenient sources don't have NGK, so I hit the web. I found a Champion cross reference that says 3013 is the platinum TR55. I want a heat range colder, but apparently this is secret information. On the advice of sparkplug.com techs, I called Federal Mogul. I finally got a human voice after half an hour. I asked him how to decode these new part numbers, and he said "Well, you can't. There is no rhyme or reason to them. I don't know if it was an engineering decision or marketing decision." So I asked for the part number for a colder 3013. Silence. Then "Ummm, hang on a second." 15 minutes later, I had an answer - 3408. The tech had to go pull prints to answer my question!!!!

So, in case you ever need to know, 3408 is one step colder than 3013

Black02SS

iTrader: (36)

Why not just order NGK's from Advance Auto Parts? They normally have mine the next morning for me.

zchgla

critter

iTrader: (9)

Apparently you have better counter persons than I. I was told "We don't have them. Next?" I usually go to AutoZone instead. But, I can sure ask if they can get them.

Black02SS

iTrader: (36)

Yea, they don't stock them, but can order them. I can't see one store being that much different from another.

critter

iTrader: (9)

It isn't the store - it is the staff that is clueless. If you know what you want and they have it, you are OK. I needed longer plug wires because of the valve cover spacers and needed them now, so off I went. I had read that truck wires are longer, so asked for truck plug wires for a late model 5.3L, 5.7L, or 6.0L motor. I ended up ordering wires from Jegs and waiting.