Do you need a thermostat for your heavy-duty truck engine? We have a great selection of Pai thermostats to fit your Cummins, Detroit, Diesel, Mack, Volvo, and Caterpillar engines. Parts available for Freightliner, International Navistar, Mack Truck, Volvo Truck, Kenworth and Peterbilt. Great Prices for quality aftermarket parts