About Us

Heavy Duty Diesel Systems Division

Reduce pollutants with a world leader in clean air technology — specializing in the design and manufacture of verified exhaust emission control solutions.

Our Heavy Duty Diesel Systems Division is a global manufacturer and distributor of verified heavy duty diesel emissions control systems and products to major OEMs and retrofitters.

Internal combustion engines with diesel exhaust are major sources of a variety of harmful pollutants. Our innovative solutions significantly reduce harmful emissions formed by the combustion of fossil fuels and biofuels.

Sales of emissions control products by our Heavy Duty Diesel Systems Division are driven by increased regulation of diesel emissions. The U.S. Environmental Protection Agency, or EPA, estimates that more than 11 million diesel engines operating today do not meet its new clean diesel standards.

We have over 35 years experience in vehicle emissions control technologies and offer one of the industry's most comprehensive portfolios of evaluated and EPA- and California Air Resources Board, or CARB-verified systems for use in engine retrofit programs, as well as by regulators in several European countries.

Our Heavy Duty Diesel Systems Division products are sold directly as well as through our global network of distributors/dealers.

Products for our Heavy Duty Diesel Systems Division are manufactured at our facilities in Thornhill, Canada and Malmö, Sweden.