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What: Shares of industrial-parts maker EnPro Industries (NYSE: NPO) ran on fortified diesel today, shooting up to 16.7% gains in pre-market action before settling down to a more modest 14% overnight jump amid heavy daytime trading.

So what: EnPro's first quarter delivered $0.92 of adjusted earnings per share on sales of $270 million. Analysts would have settled for $0.69 and $232 million on those metrics, respectively.

Now what: "Our strong sales growth was driven by higher demand for most of our products," said CEO Steve McAdam, boosted further by successful acquisitions and near-record engine sales. The underlying markets for diesel-powered trucks and industrial gear are strong, as shown by Meritor's (Nasdaq: MTOR) terrific report earlier this week. After lagging the S&P 500 for a number of years, engine and powertrain stocks are coming back strong in 2010 and 2011.

Interested in more info on EnPro Industries? Add it to your watchlist.

Fool contributor Anders Bylund holds no position in any of the companies discussed here. We Fools don't all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool is investors writing for investors.