Used 1973 Buick Riviera Emission Systems For Sale
PartRequest.com is your online source for quality used 1973 Buick Riviera emission systems.
The emission systems listed below fit a 1973 Buick Riviera.
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1972, 1973 Buick Riviera Smog Assemble, pump, diverter valve. check valve, ect.
I removed the smog system from my 1973 Buick Riviera with a 455 many years ago. Included in this system is a smog pump,(#780.1149) diverter valve, check valve, smog pump bracket (Buick 455 BCE, # 1238389) , brace, fan belt drive pully and belt .The pump rotates freely and smoothly. This emission system was introduced in 1972 and was used for several years going forward. If you have a 455 from that era and want to bring it back to stock, this is everything you need minus the hose between the diverter valve and check valve. someone asked for better pictures of the diverter valve which I added.