ΔE 14.0, fair: the same colour family, but not a straight swap. US Interior Yellow is a little lighter, cooler than Dark Sun Yellow.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 14). US Interior Yellow is a little lighter, cooler than Dark Sun Yellow.
The same difference applies the other way round: Dark Sun Yellow is a little darker, warmer.
ΔE is the colour difference between our two swatch estimates: under about 6 is close, over about 15 is loose. Real paints also differ in finish, coverage and how they thin, so test before you commit.
See Dark Sun Yellow on the colour wheel See US Interior Yellow on the colour wheel
All matches: Dark Sun Yellow equivalents · US Interior Yellow equivalents