Originally Posted by
COEWRFA
Actually yes there are many different bin style doors that cause the bins to be slightly larger or smaller. Our older/original 738's have different doors than the newer jets and also the ATA 737-800's we took have slightly different bins.
Continental is not in possession of ANY former ATA 737-83N aircraft.
To my knowledge (and I know this doesn't help much, since you've now got answers that claim to be 100% sure in both directions), there is only one overhead bin design on the 737NG aircraft.
Source: I'm a 737NG mechanic, and I've only ever seen the one design.
That said, some aircraft have handrails built into the bins. This might result in a different door setup, but I don't think it does.