Discounted parts chains similar to LKQ?

I love LKQ Heavy Truck for picking up parts when I need to do a repair enroute. They are like 3 times cheaper than Freightliner dealer for things like AC condensers, alternators, etc.

But unfortunately their network is not very extensive. For instance, they don't have anything on 95 anywhere between Florida and Massachusetts - just when I discovered down in Florida that my AC compressor is done.

Any thoughts on other sources of cheapo aftermarket / refurbished parts when on the road and online ordering is not an option?

 

Aaaa you're everywhere! This is getting confusing lol. 5 separate conversations across 2 posts.