Caterpillar Inc. (NYSE:CAT) is one of the relatively cheap S&P 500 stocks Jim Cramer talked about. Cramer said that the stock has done “incredibly well,” as he commented: “A number of industrials made it through the screen, so let me cut to the quick here. Caterpillar, the machinery kingpin, has done incredibly well. It’s up nearly 77% from April lows, but you know what? I think it’s got more upside. Stock’s on track to put up 18% earnings growth, sells for 22 times next year’s numbers.” Stock market d ...