View Single Post
      03-11-2021, 06:44 AM   #3
C-los
Second Lieutenant
United_States
70
Rep
258
Posts

Drives: 2013 M3
Join Date: Feb 2014
Location: Tx

iTrader: (4)

A huge majority of parts are made in the same place, a single factory that has the tooling and jigs from vendor contracts, or have shit jigs from copying and reverse engineering.

Now, some companies buy factory parts that failed o.e.m. q.c
Tests but still work and sell em anyways (grey market "o.e.m.", or have visual defects that do not affect function etc and that's how they're so cheap.
Some just sell shit parts and don't care.
Some sell knock off or copies
Some sell rebuilds (rarely worth it now a days since almost all rebuilds come from a handful of big box companies now

As for your part, as long as where the o-ring sits, and touches is clean and smooth, it should seal fine. Water pumps do not quite spin freely, there is a little resistance due to the brand new seals and packed bearings, but that's normal, they loosen up a bit after running for a while.

There's a reason that many don't believe as to why dealer parts are more expensive (though there are many cases of failed engineering for r.o.i., bad design, or hell even gouging to make some profit, so this rule isn't perfect but, what is)
Appreciate 0