4 Position .090 Waterproof MT Connector.
L - Fits wires from .5mm - 1.25mm (20 - 16 AWG).
S - Fits wires from 0.25mm - 0.5mm (28 - 20 AWG).
This connector is interchangeable with the 4P090WP-HM male connector but is actually in the MT series. It doesn’t have the clip-on housing section. It’s also slightly shorter in length.
Complete with seals and terminals (not shown)