Spark Plugs?

[Wiilm]

I have bought NGK 2526 BKR5EYA - 11 as suggested by local accessory shop but want to doublecheck they are o'k to use, or should I go to Toyota dealer instead?

(My local one said over the phone that a special plug was not listed for my Reg.)

How do the clips come off the top off the plug mountings? Do I squeeeze and pull or do small coloured bit in plastic lever need pressing - anything in particular to watch out for - not done this type of engine before . Manual that came with car says not to change plug gap is this correct or is tat only for toyota supplied plugs?

I think engine is a 1 AZ

[Fitter]

I have bought NGK 2526 BKR5EYA - 11 as suggested by local accessory shop but want to doublecheck they are o'k to use, or should I go to Toyota dealer instead?

(My local one said over the phone that a special plug was not listed for my Reg.)

How do the clips come off the top off the plug mountings? Do I squeeeze and pull or do small coloured bit in plastic lever need pressing - anything in particular to watch out for - not done this type of engine before . Manual that came with car says not to change plug gap is this correct or is tat only for toyota supplied plugs?

I think engine is a 1 AZ

The plugs for the 2003 + are:- 1AZFE DENSO SK20R11 or NGK IFR6A11. The !AZFSE are:-DENSO SK20BR11. Gaps are pre-set and should not be altered.