I recently bought a 1972 b-1800 and as you could imagine i need a few parts. The problem i have is that everywhere i have looked says that mazda didn't come out with the 1800 until 76\77. The sticker under the hood says it belongs to the 618 and 1800 class, and there are b-1800 decals on the side. If anyone has any info what-so-ever please let me know. Anything can help.

 

I think in the US the B1800 wasn't produced until the late 70s, overseas mazda built vehicles with that engine for years before that.