Classic Industries chrome fuel tank cap warning.
Just a heads-up that I had a catastrophic failure on two of these. One I purchased and the second was a replacement for the first. This is for PN MA8174 which is a non-vented cap.
This cap is held together with a single spot weld. When that fails it pops the inner cap with the latching ears into the tank. Not good! Both caps had cold weld joints with no weld nugget.