* Q4 loss/shr C$0.43 vs est C$0.25
* Q4 rev up 72 pct to C$26.3 mln
June 8 (Reuters) - Canada’s Westport Innovations Inc WPT.TO posted a quarterly loss that was wider than expected, partly on lower margins and higher expenses.
For the fourth quarter ended March 31, the company reported a net loss of C$12.7 million, or 43 Canadian cents a share, compared with a loss of C$8.1 million, or 30 Canadian cents a share, a year earlier.
Revenue rose 72 percent to C$26.3 million.
Analysts on an average expected a loss of 25 Canadian cents a share, on revenue of C$30.8 million, according to Reuters Estimates.
The company, which provides natural gas engines serving the medium and heavy-duty vehicle markets, said gross margin percentage fell to 26 percent in the quarter from 30 percent a year earlier.
Shares of the Vancouver, British Columbia-based company closed at C$7.92 Monday on the Toronto Stock Exchange. (Reporting by Ashutosh Joshi in Bangalore; Editing by Deepak Kannan)