Features and Benefits:Compact 6" Wrench Provides 100% Engagement on the Fuel Filter Collar.;61180 6" wrench works on any diesel engines found in Caterpillar CT660, CT11, CT13, CT15, Cummins, Detroit Diesel, International, Mercedes Benz, Paccar, Daimler Trucks North America, Kenworth, Mack, Navistar, Peterbilt, Thomas Built Buses and Volvo.;61180 Compact Wrench 6" for Davco Compact 6" Wrench Provides 100% Engagement on the Fuel Filter Collar. 61180 Compact design and 3/8" square drive for easier access to Davco chassis mounted fuel filter assemblies. High strength laser-cut steel for durability. Applications: The 6" wrench works on any diesel engines found in Caterpillar CT660, CT11, CT13, CT15, Cummins, Detroit Diesel, International, Mercedes Benz, Paccar, Daimler Trucks North America, Kenworth, Mack, Navistar, Peterbilt, Thomas Built Buses and Volvo.