Made in China usually = crap.
I'll go with Rock Auto first and try to buy brands I know had (hopefully still have ) a quality product. I always check OEM depending on the application they can be the best choice, unless you want to use wingnuts to install them so you can replace the replacement quickly with no tools.
I think Taiwan and Korean made parts are probably good but it really depends on how much labor the install takes. For example if I was replacing the main bearings they would be OEM. Timing parts OEM. Clutch parts preferably a name brand with good customer reviews.
I solved my replacement parts issues with a parts car, hit in the rear (totalled) with 177k miles, right now I have $73.75 in the parts car after selling $200 worth of parts.
Having an extra, running parts car is a great idea for a car you plan to keep a long time as when you have a problem, after you narrow it down, all you have to do is pull a related part on the running parts car, and check if it fixes the problem. If it does fix the problem just order the same part new, and put the known good part back on the parts car.
Going OEM is fine if you have the money, but many here who obviously are driving a older car may not want to spend triple the price for OEM IF they can buy something just as good for less money.
I've build many engines, and I use King bearings as they are better than most OEM rod, main, or cam bearings. For timing parts I buy Cloyes as I use them in all of my high performance engines, of which a couple are making north of 1k hp. So I know Cloyes should hold up fine in my daily driven stock cars [I've got the whole Cloyes timing kit for my Nissan V6]
So, let me say again the purpose of this thread is to name the good aftermarket parts that YOU, YOURSELF have found to be good, not what you've heard someone else say.
If someone likes to buy only OEM that is fine. As we know OEM is great if you have the money, so there shouldn't be a need to post page after page of people saying buy only OEM, or a debate on OEM vs aftermarket.
Just post what AFTERMARKET parts YOU have used on your vehicles, and which brands held up, and which brands do we need to stay away from. I agree that most China made parts are just junk, but there are some that work just fine, which is why we need this thread to tell us the good from the bad.
I'll use my own car for this example. While installing an engine I just rebuilt on my Nissan [V6] I broke a power steering solenoid. I thought no big deal as it couldn't cost that much even from the dealer, right? WRONG!!!! The frigging thing was over $100 shipping, and all. I bought an Ebay cheap part for under $10, and its been doing just fine for over two years.
For example has anyone used any ignition parts made by Standard Ignition lately? They used to be a great company back in the '80s, and '90s, but I haven't used them in a while so I don't know if Standard Ignition still the same quality parts makers as they were.