I do apologise, I tried my best to use the correct Americanisms. P/N 1372541 for the 850s, though oddly this brings up nothing on volvopartswebstore. It is the fibreglass panel at the front of the car that the hood latches into, the headlights, washer motors, and horn bolt into.
EDIT: Found it, after much searching. P/N: 9151585, superseded by 1372541 (1372542 for the option without holes/fasteners for the headlight wipers). I've still quite no idea what this would be referred to stateside though.







