About DES

Diesel Emissions Service (DES) began its operations 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 meet and exceed the strict CARB and EPA emissions regulations placed on diesel trucks. Since 2006, DES has sold and/or installed over 15,000 emission control devices, and is now an industry leader in diesel emissions on the west coast, with a rapidly expanding Service Partner Network throughout the U.S. and Canada. 
DES manufactures DPF (diesel particulate filter) equipment and accessories, we sell and distribute other popular industry DPFs and accessories, and we clean, service and retrofit DPF filters. In 2014, DES began manufacturing DPF cleaning equipment under the Filtertherm brand as an industry response to outdated cleaning technology. In 2016, DES launched its Redline Emissions Products brand to cover the DPF equipment needs for the light, medium and heavy duty diesel markets. We offer DPFs, gaskets, clamps, weld bungs, CACs (charge air coolers), sensors, brackets, guards and custom mounting kits. We have our own AMADA stamping press with complete fabrication facility, and we have a certified electrical control panel UL shop.
DES has one of the largest replacement OEM filter inventories in North America and have begun distributing in both Canada and Australia. We have six locations on the west coast.

DES Locations


17011 Clear Creek Rd
Redding, CA 96001
Telephone: 530.241.3950
Fax: 530.241.0870
Visit Page


9861 North Vancouver Way
Portland, OR 97217
Telephone: 971.544.7282
Fax: 866.336.3396
Visit Page


400 S Wineville Ave
Ontario, CA 91761
Fax: 909.947.5029
Visit Page


4522 Parker Ave, Suite 200.
McClellan, CA 95652
Telephone: 866.223.1609
Fax: 866.334.7701
Visit Page


19358 96th Ave Unit 205
Surrey, BC V4N-4C1
Telephone: 888.295.7039

Visit Page


1471 Doolittle Drive
San Leandro, CA 94577
Telephone: 510.635.5361
Fax: 510.635.0870
Visit Page