vmoldovan

@ANT78 Congratulations. And thank you for all this information and pictures. This is awesome!
Were flange gaskets good enough to reuse or did your buy new ones, I mean these egr cooler gaskets part numbers 2562831030 and 2562731040?

ANT78

Thanks. The EGR flange gaskets are metal and they look like new, I think they will last 3 spark plug changes or 300k miles. I replaced the manifold gasket with an original Lexus part number 1717631130, but the old one was in good condition and I think it can be left until 200k miles. I didn't change the throttle body gasket, I think the old gasket will last up to 200k miles too. but these are just my thoughts, in general it is better to change all the rubber gaskets, they are not expensive. I just couldn’t find the throttle body gasket number on the Internet, so I didn’t change it. If anyone has the part number for this gasket, please post below. it looks like a black round rubber thing

vmoldovan

@ANT78 Thanks a lot.
Throttle body gasket pn is 22271-0P020, holding in my hands.
https://www.lexuspartsdirect.ca/p/Le...22710P020.html

evident

I hope i never get a used vehicle with someone with this mentality. at least follow the manufacturer's specified service interval and get them replaced at a shop or a dealer.

Millarduck

Curious, what does a dealer or independent garage charge to do spark plugs in a 450h?