Alliance Truck Parts has expanded its exhaust product line to include torsional and standard bellows designed for the heavy-duty market.

The new bellows are Tier 4 compliant and designed to meet or exceed EPA 2010 leak requirements. Alliance bellows are made from 300-series stainless steel and undergo extensive testing to improve longevity.

The bellows are sold as kits containing all necessary installation elements including clamps and gaskets, and, in some cases, kits also include rigid tubes and support brackets for quick service.

Alliance bellows are backed by a one-year unlimited-mile warranty, serviceable at more than 800 locations including Freightliner, Western Star and Thomas Built Buses dealerships in the U.S. and Canada as well as Travel centers of America and Petro locations nationwide.