I heartell that the magnum takes 3923's, my dumb self trusted the pepboys to tell me what i needed. So, I have 8x 3924s sitting in the back of my cab. Is there a diffrence in the two besides the heat rating?

 

I'm ignorant but always looking to learn new things ................... wtf are you talking about?

 

Autolite spark plugs?

He did say he bought 8.

I don't have your answer, but just take them back if they're not what you want.

 

lol, yea, autolite plugs.

 

I prefer Champion truck plugs myself, may cost a bit more but worth it IMO

 

if I had a place to get them, i would. where do you get yours

 

I believe I got them at Advanced Auto, or I think you can go through Summit

 

my friend tells me champion spark plugs used to be good but started going downhill after some company bought them out, but seems like lot of people still prefer champions. how much of a difference is there really between the two?