Industry Leader

With over 40 years of experience, Fontaine Modification is North America’s most comprehensive provider of post-production truck services for original equipment manufacturers, dealers, and fleets. Our modification centers are located strategically near the truck OEM manufacturing plants to allow trucks to be modified and then returned to the shipping process.  This Ship-Thru agreement reduces the time needed to get a truck into service and ready to work. 

Fontaine’s Heavy Truck Operations division offers a full range of design, engineering and production services for vocational and on-highway trucks. The Work Truck and EV Solutions division provides electrification packaging, integration, and installation solutions as well as a full spectrum of light duty vehicle modifications.

The Fontaine Advantage

Quality at Fontaine Modification is not simply a slogan or a poster on the wall. We’ve designed our entire work process, from user requirements definition to design engineering to pre-delivery testing, to be focused on quality outcomes and consistent repeatability. Every finished truck, from first to last, is quality engineered throughout.


For new designs and fleet orders we often invite the customer for a "Pilot Review" of the first vehicle. This extra step assures customer satisfaction with our designs.

Experience Counts

With 40+ years of engineering and modification experience, Fontaine Modification is able to build upon our deep understanding of existing OEM platforms to professionally solve even the most complex custom modifications. Working from a “think and plan first” perspective, we use our engineering capabilities to design the best and safest solution for every application.


Our long history and industry insight enable us to provide you with the guidance and proven design expertise to help you select the most effective modification possible and comply with FMVSS regulations

Relationships Matter

Fontaine has established partnerships with the leading truck OEMs. Our modification centers are strategically located near their manufacturing facilities for ultimate customer convenience and ship-thru arrangements. As a result, we can move your new trucks directly from the OEM assembly line to one of our modification centers and then return them to the OEM equalized freight system and on to their final destination with limited shipping costs. Your new trucks will get out into the field in the shortest amount of time possible.

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