A federal judge has refused to dismiss racketeering claims in a case over GM’s diesel trucks, potentially bolstering cases against other automakers that, like Volkswagen, have been accused of cheating emissions tests.

In a ruling on Tuesday, U.S. District Judge Thomas Ludington of the Eastern District of Michigan refused to dismiss a class action against General Motors and parts supplier Robert Bosch GmbH alleging they installed “defeat devices” in about 705,000 2011-16 GMC Sierra and Chevrolet Silverado trucks that use Duramax diesel engines. The most significant claim to go forward involved allegations that GM and Bosch conspired under the U.S. Racketeer Influenced and Corrupt Organizations Act to fraud consumers into buying “clean diesel” vehicles at premium prices.