Magna International Inc. (MGA) suffered through one of the toughest periods in its history in the first quarter of 2009, posting losses on a GAAP and operating basis as its major customers struggled to restructure and vehicle production plummeted.

The auto-parts giant suspended its quarterly dividend Wednesday in a bid to conserve cash, and warned that its results will be hurt in the short term by planned shutdowns at its major customers.

Magna swung to a loss of $200 million or $1.79 a share in the first quarter from earnings of $207 million or $1.78 a year earlier.

Its operating loss was $230 million, compared with operating earnings of $286 million a year earlier.

The Thomson Reuters mean estimate had called for a loss of $1.61 a share in the latest quarter.

Sales tumbled 46% to $3.6 billion.

Auto-parts suppliers are reeling from the unprecedented downturn in the U.S. auto industry, which has sent some auto-makers scrambling for government aid and which led Chrysler LLC to seek bankruptcy protection last week. Both Chrysler and General Motors Corp. (GM) also plan lengthy temporary shutdowns this year, which will further reduce demand.

Magna said GM is its largest customer and Chrysler its fourth largest.

In the first quarter, Magna's North American and European average dollar content per vehicle rose 4% and fell 4%, respectively, from a year earlier. North American vehicle production was sharply lower, down 50%, while European vehicle production fell a steep 40%.

Tne company said its complete vehicle assembly sales fell 63% in the quarter. Complete vehicle assembly volumes fell 72%.

In a recent report GMP Securities said the difficult environment also presents some oppportunities for suppliers such as Magna with strong balance sheets with flexible, low-cost operations. Those companies may be able to diversify, win business from struggling suppliers, and acquire assets at low prices, it said.

Magna said it's taken steps to cut costs. It added that, while the auto crisis will reduce its cash resources, it will likely have a more severe impact on other auto suppliers. "This should provide us with further opportunities to gain additional business, either through acquisitions or takeover business, and position us for recovery when North American auto production returns to more sustainable levels," it said.

Wednesday in New York, Magna is halted at $36.91.

-Carolyn King; 416-306-2100; AskNewswires@dowjones.com