Industrial manufacturer Eaton Corp. (NYSE: ETN), Cleveland, OH, reported sales for the fourth quarter of $4.3 billion, an increase of 7.4 percent compared to the same period a year ago. Profit fell 50.6 percent to $179 million. Eaton closed the acquisition of Cooper at the end of November.

Fourth-quarter sales for the Electrical Americas segment were $1.2 billion, up 3 percent from the fourth quarter of 2011. Sales for the Electrical Rest of World segment were $711 million, up 2 percent.

Fourth-quarter sales for the Cooper segment were $470 million, reflecting Eaton’s ownership of Cooper for the month of December.

In the Hydraulics segment, sales for the quarter were $693 million, 2 percent lower than 2011 levels.

The Aerospace segment posted fourth-quarter sales of $434 million, an increase of 1 percent year-over-year.

Truck segment sales were $504 million, down 26 percent. Automotive segment sales were $367 million, down 8 percent from prior-year levels.

For the full year, sales for Eaton were $16.3 billion, 2 percent higher than 2011. Profit fell 9.8 percent to $1.2 billion.