Spark Plugs: 101905531g vs. 101905631g...

[iconoclast]

i bought 8 plugs from ecs tuning, the boxes are all labeled 101905631g and all the plugs in them are the same except for one which i labed 101905531g on the part itself. superceded p/n or error?

installing as we speaking and leaving this one for last so i can see what people on here say.

thanks.

[dparm]

Those are different plugs. They need to swap the one.

101905631g is correct, the other is not.

[iconoclast]

which platform are they for? 101905531g does not come up anywhere in any parts search or google however it was in the box for the proper number which is 101905631g... also all the plugs are now 1 electrode (prong) vs 3 prong. any particular reason why?