About DES in Redding

Established in 1978 as a full-service, family-owned truck repair facility and salvage yard, North State Truck Equipment Inc., has been evolving to offer experienced service, parts and overall knowledge for heavy-duty diesel trucks.

In 2007, North State Truck Equipment Inc. expanded our service to become a DPF retrofit distributor and opened Diesel Emissions Service (DES) as the emissions department of our company. Over the last eight years, DES has grown from our Redding headquarters to include locations in Sacramento, Ontario, San Leandro, and Portland, and offer a wide array of services to meet the needs of our customers.


Mobile Installation: If you are not near one of our several locations, we will arrange to have our technicians come and install your DPF at your location.

Diesel Particulate Filter Installation: Designed for heavy-duty, on-road and off-road diesel applications.

Custom, Purpose-Built Mounting Solution Manufacturing and Design: DES makes an array of gaskets in-house.

Filter Cleaning Services: We’ll take care of all of your cleaning and maintenance needs.

Training: We offer training for the software of several manufacturers’, as well as diagnostic, troubleshooting, DPF installation, and even filter cleaning training.

And much more…
DES is a verified distributor for several DPF manufacturers including: CDTi, Donaldson, ESW Group, Johnson Matthey, Huss, Hug, Nett and DCL. These partnerships ensure DES offers you the best parts and services in the industry, regardless of the project.

Our newest endeavor, Filtertherm™ , marks our entry into the market of cleaning machines specifically geared towards cleaning DPF’s. The Filtertherm™ “DPF Thermal Regeneration Oven” is in production and available for purchase.This purpose-built oven is designed specifically for regenerating DPF’s and includes several exclusive features, such as touch screen and interface specifications.

DES is your one-stop shop for emissions solutions! Whether you need gaskets, parts, a filter cleaning, or simply have questions, we’ve got the answers.

The Office Team

The Production Crew

The Techs

Contact the Redding Team

17011 Clear Creek Rd
Redding, CA 96001
t. 530.241.3950
f. 530.241.0870

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