Walking into a garage at the Navistar Proving Grounds in northern Indiana yielded an unexpected sight: a tough-looking sleeper-cab tractor parked several lanes away. “What’s that?” I asked my hosts.

Navistar has launched its International S13 Integrated Powertrain for the vocational market, offering it in the International HX Series. First introduced for the on-highway market last August in the ...

Fontaine Modification and Daycab Company are offering a new extended cab option for International HX Series trucks that adds 8 inches of interior space to the rear of the cab. This cab expansion gives ...

Truck manufacturers’ use of vertical integration of componentry is not new, but some of the products are. Builders have updated engines to meet the latest exhaust emissions requirements and refined ...