Parker also said sales and orders increased sequentially and raised its full-year earnings forecast, citing signs of an emerging recovery.
Net earnings fell 33 percent to $104.6 million, or 64 cents per share, in the second quarter that ended December 31, from $155.4 million, or 96 cents per share, a year earlier.
Analysts on average expected a profit of 35 cents per share, according to Thomson Reuters I/B/E/S.
Revenue fell 12 percent to $2.35 billion, above Wall Street forecasts of $2.25 billion.
Parker may be one of the first industrial companies to recover along with the U.S. and global economies because it serves early-cycle markets, such as construction equipment, truck and auto industries.
It said it expects fiscal 2010 earnings from continuing operations in a range of $2.40 to $2.80 per share, which is above Wall Street's estimate of $2.02 per share.
(Reporting by Nick Zieminski; Editing by Lisa Von Ahn and Maureen Bavdek)