Tenneco has been awarded a contract with International Truck and Engine Corp. to supply exhaust aftertreatment systems for its entire line of medium-duty diesel vehicles with International engines, launching in 2007.

The contract is Tenneco’s first in North America for diesel emission control technologies for the medium duty commercial vehicle segment.
Tenneco will provide International’s vehicles with complete exhaust aftertreatment systems, including the diesel particulate filter (DPF) and the diesel oxidation catalyst (DOC). The new exhaust system also features air gap pipe, designed to work together with other components to provide superior thermal efficiency and help improve fuel economy, and a new hanging system.
Tenneco’s latest generation DPF system was designed using Tenneco’s proprietary computational fluid dynamics and particulate ash modeling CAE (Computer Aided Engineering) technologies. The DPF not only provides an effective solution, but also has an advanced modular design that allows for easy cleaning and service every 150,000 miles. This advanced design allows International’s service technicians to remove the DPF from the vehicle in less than 10 minutes, with a simple one-bolt removal system.