Looking for online classified links in the USA

I'm looking for some good online classifieds links for websites from throughout the USA.

The genre of interest is Automotive and Marine, so if you know of a good online classifieds site that has a good range of auto and marine listings on a regular basis, then drop me the link please.

This isn't for selling products, these links are required for possibly sourcing products, so I don't care if they are free or paid classifieds, online newspaper or not classifieds, just so long as they have a decent listing volume for automotive and marine vehicles and vessels.

People need to be leery of auto parts made in china, especially mechanical products.

I ordered a power window motor and regulator assembly online from this company that had great reviews. The part was made in china but it was $20.00 cheaper than the other manufacturers.

The part was guaranteed for 30 days and that's about how long it lasted. I wasn't able to return it and I won't even go into the problems that I had with this part during the install.

Now with non mechanical parts, most people looking for cheap cosmetic parts and accessories (chrome painted plastic hubcaps, floor mats, etc.) stick with Autozone, Walmart or Biglots.