After two months of slowing growth, same-store dealer sales grew more than 8 percent in June.
Sales were up in all categories, according to the latest report from CDK Global Recreation, which is based on data from users of the company's Lightspeed software.
Overall sales were up 8.1 percent year-over-year for the month, following 1 percent growth in May and 2.8 percent growth in April.
Unit sales grew 5 percent for the month, second only to March's 6.8 percent increase for the year.
Parts department revenue rebounded in June, up 6.1 percent year-over-year after dropping 3.1 percent in May. That May decline was the first in parts revenue in more than a year.
Service department revenue was also up, but only by 1.8 percent, it's worst figure since a 13.5 percent decline in January.