Sales are estimated to have increased 14.8 percent over the cited period to 16.9 trillion won, it added. The record now stands at 2009, when LG posted an operating profit of 2.6 trillion won.
Samsung Electronics said on Tuesday that it expects a 64 percent jump in fourth-quarter operating profit, taking the figure to a new record, but the guidance fell short of market expectations.
According to the earnings guidance that was recently released, the last quarter of 2017 was a great one for Samsung.
Preliminary revenue for the December quarter advanced 23.8 percent over the year to 66 trillion won (61.9 billion USA dollars).
Samsung Electronics' financial performance has soared despite his travails.
Samsung said it expects its operating profits for the 2017 full year to hit 53.6 trillion won and to post full-year sales of 239.6 trillion won. The tech giant is expected to elaborate on the results in its finalized report, which will be delivered later this month.
Analysts surveyed by Reuters had forecast 15.9 trillion won profit on average for the company for final quarter of 2017.
The local stock market opened higher taking a cue from overnight USA gains, but the index slipped in afternoon trades to close lower.
Analysts said LG benefitted from strong shipments of premium organic light emitting diode (OLED) TVs along with other high-end washers and refrigerators.
Shares of Samsung Electronics were trading at 2,574,000 won as of 9:51 a.m., down 1.04 percent from the previous session's close.
The mobile business, however, is presumed to have posted quarterly losses of around 200 billion won, analysts said, despite a slight improvement in the sales of the V30 and Q smartphones.