Known to fit both a 2005 Hyundai Elantra and a 1996 Ford Mustang 4 (will likely fit several other models).
I lost my brake fluid cap somehow while working on my brakes (likely in some blackhole in the engine bay). So I created this as a temporary fix (certainly won't be permanent).
I printed in PETG as it should be more resistant to brake fluid, but there's likely other filaments that will work.
The fit is really nice and it seats quite positively, so hopefully prints the same for you.
The author marked this model as their own original creation.