Originally Posted by rich29_cal

I'm a bit worried about the difference between OEM and aftermarket parts. I know that the exterior of the parts are exactly the same, but are the interior the same? For example, a Fram engine oil filter is the exact size and shape of an OEM engine oil filter, but the OEM's quality is much better.

I'm worried b/c I don't want to put in an aftermarket filter and then later only having to replace it again.

And, yes, the price is an issue. If I can spend $30 for an aftermarket and it's the exact same part (both externally and internally), then I'd rather save the money by not buying an OEM filter for twice as much as the aftermarket one.