(Adds first-quarter details, forecast)
March 8 (Reuters) - Navistar International Corp reported a near 15 percent rise in quarterly revenue on Thursday, fueled by higher sales in its truck business.
Revenue in the truck business, the company's biggest, rose 21.8 percent to $1.25 billion in the first quarter.
Navistar raised its full-year 2018 revenue forecast to be in the range of $9.25 billion to $9.75 billion, from $9 billion to $9.5 billion.
"We expect market conditions to remain robust and we are determined to take advantage of opportunities to grow share while delivering strong margin performance," Chief Executive Troy Clarke said in a statement.
The company's revenue rose to $1.91 billion in the quarter from $1.66 billion a year earlier. http://bit.ly/2Fk3XNI
Net loss attributable to the company widened to $73 million from $62 million. On a per-share basis, the loss was 74 cents per share in the quarter ended Jan. 31, compared with 76 cents per share in the year-ago quarter. (Reporting by Sanjana Shivdas in Bengaluru; Editing by Maju Samuel)