Probably the best supplier (in the US) of parts fo...

Probably the best supplier (in the US) of parts for my VOLVO-s. Excellent on-line catalogue, and they almost always have a choice of OEM/Good-brand/Cheap-brand version of the part (with the corresponding difference in the price, of course :).
Over the years I've learned to avoid the cheap-brand parts, because they really don't last, and I go with the good-brand ones now, which are still significantly cheaper than the OEMs, but are of lasting quality.

Very fast shipping (but this might be because I am in a neighbouring state)
Sales representatives are nice and competent.

The one star that I'm taking off is for the mixed-up shipment on a recent order, which did not let me complete a repair in time.