Thor Industries Inc. reported record sales and earnings for the third quarter of its fiscal year 2000, which ended April 30.

The company’s earnings during the February-through-April period increased 13% to $10.1 million and its sales climbed 9% to $243.9 million.

Thor’s earnings increased during the recently completed quarter despite start-up costs related to the opening of its new Four Winds motorhome assembly plant in Elkhart, Ind., and a shortage of chassis which negatively impacted the company’s transit bus business, said Chairman Wade F.B. Thompson.

The chassis shortage caused Thor’s bus revenues to decline 5% to $53.1 million during the February-through-April period. However, the decline in bus revenues was more than offset by a 14% increase in RV sales during the quarter to a record $190.8 million.

The chassis supply situation “has now improved,” Thompson added.

During the nine months ended April 30, Thor’s earnings increased 24% to $26.5 million and its sales were up 14% to $658.7 million.

Thor’s RV sales climbed 16% during the nine-month period to $487.5 million and its bus revenues were up 7% to $171.2 million.