The TE Connectivity 2-1718643-1 is a 2-position, single-row receptacle housing from the MCON 1.2 series, on a 4.00 mm pitch. This makes it a standard choice for sealed underhood and engine-bay harness connections in automotive and off-highway equipment where water and debris ingress is a concern.
Sizing the Harness Build: Pitch, Positions, and Contacts
At 4.00 mm pitch and 2 positions, this housing fits a compact 2-circuit sealed interconnect. The critical procurement detail: contacts are not included. You will need to source the matching MCON 1.2 female crimp terminals separately (TE part numbers 1-968820-1 or similar, depending on wire gauge). The housing accepts the standard MCON 1.2 contact system, which is a common automotive-grade terminal for 0.50 to 1.00 mm² wire.
The IP6K9K rating is the headline feature here. It means the mated connector pair (housing plus the matching header) is protected against dust ingress (6) and high-pressure, high-temperature steam cleaning (K9K). This is the standard seal level for engine compartment and transmission-mounted connectors that see hot oil, road salt, and pressure washers. The glass-filled PA6 housing holds its dimensional stability across that range — no warping that would break the seal interface.