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Diesel Emissions Service
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 Diesel Emissions Service 
Steve Hoke 
Phone: 530.241.3950 
Fax: 530-241-0870 
Areas Served: North America, Australia


Diesel Emissions Service (DES) was started in 2006 as the Emissions Division of parent company North State Truck Equipment, Inc., which has been serving the heavy duty truck market since 1978. DES was established to help California businesses get their trucks compliant and meet or exceed the strict CARB and EPA emissions regulations. With over 15,000 emission control devices sold or installed by DES since 2006, they quickly became the authority for heavy duty emissions systems on the West Coast. 

In 2014, DES began manufacturing DPF cleaning equipment under the Filtertherm® brand. DES also established one of the largest replacement OEM filter inventories in North America and expanded its distribution to both Canada and Australia. In 2016, DES launched Redline Emissions Products® to meet the growing need for quality parts in the light, medium and heavy duty emissions industry.