Imperial is a distributor of maintenance products and aftermarket components for the vehicle and fleet industry. The company had sales of $67 million in 2008.
"In addition to the financial benefits for our shareholders, we anticipate cross-selling opportunities by offering Imperial customers access to Grainger's broad product offering and national distribution scale and Grainger customers access to the 20,000 fleet maintenance products Imperial carries," Mike Pulick, president of Grainger's U.S. businesses, said in a statement.
Grainger on Tuesday reported third-quarter sales of $1.6 billion, down 14% from the year-earlier period. Net earnings increased 3% to $145 million.