Espar, Inc., Webasto Products North America, and other related companies are settling a class action alleging that they conspired to fix the price of parking heaters. The complaint alleged that the companies’ agreements were violations of antitrust laws and that they resulted in consumers paying higher prices for the heaters than they should have. (Parking heaters are heaters used in trucks, agricultural machines, and construction equipment that keep the vehicle warm even when the engine is not running.)