Shares of Cummins (CMI) jumped on news that the company more than quadrupled second-quarter earnings while raising guidance for the third quarter and year.The Columbus, Ind.-based company said earnings surged to $82 million, or $1.76 a share, up from $14 million, or 34 cents a share in the same period last year. Sales were $2.12 billion, up nearly 40% from $1.54 billion. Analysts had forecast earnings of $1.34 on revenue of $1.81 billion, according to Thomson First Call. Cummins attributed the strong quarterly growth to strong sales across all core operations, citing a 57% revenue increase in its engine segment to $1.4 billion up from $889 million in the prior year. The company said consumer reactions to the product line were strong. Moreover, the company saw an increase in overseas demand in its power generator, filtration and international distributor segments. The power generator and distributor segments saw significant strength in China and the Middle East. On the strength of the second quarter, the company raised its guidance for the full year to $5.55 to $5.75 a share and said it expects third-quarter earnings of $1.30 to $1.40 a share. Analysts had been expecting third-quarter EPS of $1.24 and full-year EPS of $4.80. Shares of the company are recently up $3.39, or 5.5%, to $65.40.