Spark Plugs for the 470

[anotero]

While looking through the owner's manual I noticed that the required spark plug part numbers are no longer in production, unless the revision letters have changed. The required plugs from NGK per the manual were IFR6A11. What I see on the NGK website now is IFR6T-11. Are these good to go?

 

[71-CRUISER]

DENSO # 3297 Iridium SK20R11 have always been mo go to for 2uz applications.​

 

[zzyzx85]

I put NGK BKR6EIX-11 on my GX last year. We have used NGK on all our vehicles without any issues.

 

[anotero]

DENSO # 3297 Iridium SK20R11 have always been mo go to for 2uz applications.​

I thought those were discontinued, but the Denso sit edoes have them. Cool!

 

[anotero]

If going with Denso, which one to choose from 4702 and 3297?