Originally Posted by AlanAZ
NGK PLZFR6A11 was the original plug for the N52, and has been superseded. They are clearing old stock.
2/09 and EARLIER Spark Plugs/Ignition Coils: 12122158253(NGK PLZFR6A11S/BOSCH FR7NPP332); BOSCH 12137571643(BOSCH 12137594937 Upgraded Replacement)
3/09 and LATER Spark Plugs/Ignition Coils: 12120037663(NGK LZFR6AP11GS); BOSCH 12137594937
As I understood it the PLZFR6A11S and PLZFR6A11 are actually the same plug. Even if what I've found saying they're the same is incorrect, they'll still work fine in our motor as they were originally the plug specified, correct?
Also, it's not clearing old stock, it's just a sitewide coupon code. I happened to use it for a good price on plugs.