Housing fit and wiring context
The 1981971-1: This is the 8-position receptacle housing from the Grace Inertia (GIC) series, a 2.50mm-pitch wire-to-board system. The 2-row layout with 0.299" row spacing keeps the wiring bundle compact. The housing is natural PBT, glass-filled, rated from -30°C to 105°C. That covers most indoor equipment and automotive cabin environments, but not engine-bay heat.
For a mated pair, the mating header is a separate line item. The locking ramp on this receptacle clicks into the header latch, so confirm the header has the matching ramp feature.