Oil pressure gauge line
 

I have a new line I bought for a Corvette GM # 3906192 does it fit all Chevrolet models ?

It's the nylon line that goes from the gauge to the top of the block on small blocks. As long as the line is long enough, I see no reason why it wouldn't fit quite a few models. It's correct for 68-73 Vettes and 68-69 Camaros & Nova at least. If it's too long for another application, it's easy to trim.

What car and year are you using it on?

I bought it from a local Chevrolet dealer years ago for a 1970 Corvette but sold the car a few years ago.

1969 Camaro uses a Black line.

The one I have is black with brass fittings on each end