This question may sound stupid, so forgive me for my ignorance...

The Nissan Dealer OEM Packaged Spark Plugs for an N/A 300ZX are the NGK PFRB6-11...

Would this be any different then buying the NGK Packaged PFR6B-11s from the local auto parts store? (Some dealers use proprietary designs that may in fact be different so I'm curious if this is the case for these plugs)

A follow up question is based on my inquiry at the Parts Store. The store rep said the STANDARD NGK plug for the Z is the PFR5B-11 every Z enthusiasts site and parts supplier seems to contradict that spec. Should I still be asking for the PFR6B-11s regardless of the NGK parts association?

Thanks

Isaac

 

No offense, man, but they're part numbers... they are unique to a specific part. If the part number is the same, the parts are the same.

As for the stock plug, I'm pretty sure the NA's came with PFR6B-11 because of the higher compression ratio. The TT came with PFR5B-11B, and nobody recommends using them for anything other than stock TT's (if the car is modded to Stage III+, it needs colder plugs, PFR6B or PFR7B). I have seen on no Z enthusiast site mention using PFR5B plugs on an NA. And never believe a parts store over places like TwinTurbo.NET.

 

Thanks.. I apologize for frustrating you with the question. I know it sounded dumb, it just happens to be I have a local dealer trying to sell me the B.S. that the NGK plug in the store isn't the same, so I had to ask. He wants 12.99a plug while Advanced Auto Parts wants 8.99... So I was double checking.