Mack, Volvo provide retrofit DPFs

Mack Trucks Inc. and Volvo Trucks North America now offer retrofit diesel particulate filters (DPFs) to allow operators of older-model Mack and Volvo trucks to meet new emissions requirements from California environmental regulators.

The California Air Resources Board (CARB) intends to improve air quality by reducing particulate matter (PM) emissions from older vehicles. New requirements apply to all diesel-powered vehicles over 14,000 pounds GVWR; this includes out-of-state vehicles that operate in California, as well as vehicles based in the state. Mack's and Volvo's retrofit DPFs are designed for non-EGR (exhaust gas recirculation) diesel engines sold from 1996 to 2002.

Mack's and Volvo's retrofit DPFs come with a five-year/150,000-mile warranty and can be ordered through any of their dealers in the United States and Canada. Dealer installation is required The product is integrated into existing exhaust systems and offered in several sizes based upon engine displacement and horsepower. Each retrofit DPF comes with an installation kit, complete with brackets, engineered for the customer's specific model.

CARB will offer financial assistance and incentives for the purchase and installation of the DPFs (preliminary details regarding the regulations and financial incentives can be found at

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