Replacing plugs

[wineluver]

'07 es350 with 155k still on original plugs. Ready to replace with iridium plugs, which I will purchase online. What other parts do I need? I have a qualified mechanic who will do labor.

[Jeff_Anderson]

Hello, 

The intake manifold needs to be removed on your car so you will need an intake manifold gasket and I would recommend a throttle body gasket. You can skip the throttle body gasket but the coolant lines that run through the throttle body will have to be removed which means your mechanic will have to bleed the cooling system. I would just get both gaskets it only costs a few dollars but you absolutely need the intake aka plenum gasket.