OEM parts vs generic, is it that much better? Options

[Hanyo]

I'm about to change the timing belt, water pump, pully on the celica.

It has got me thinking, is it worth it to put genuine toyota parts in there?

I mean, how much longer is the old 7afe gonna last before the valve seals leak and i will be pulling off the head anyways. I've given up on modify the celica, and ditching plans to turbo the 7afe. So this engine will not be under the heat and stress modified engines face.

[lagos]

i have seen some pretty shocking aftermarket parts. the quality control seems to be very poor with a lot of that stuff. for something like a water pump/belt/pully. .. id stick with oem. simply for the fact that you dont ever want to do that job twice.

for less important parts, aftermarket can work well and save you some money. it just all depends on the part and the company that makes it.