About Us

WC Fab Staff

Pop the hood on a diesel enthusiast's truck somewhere in North America and you may find my company's logo on the engine. Welded to an intake or intercooler pipe, this logo represents an awesome responsibility to the diesel enthusiast community that has supported WCFab over the years. It's a responsibility and commitment to ensure WCFab products meet the highest standard of craftsmanship and fitment. We care enough to put our name on it. 

Where We Came From

Our story begins circa 2010 in a two-truck garage at my parents’ house in Sandwich, Illinois. Like many of our customers, motorsports played an important role in my life growing up. Dirt bikes, ATVs, snowmobiles, trucks, racing - you know the drill. When stuff broke, I didn't have the cash to have someone else fix it, so my brothers and I did the work ourselves. This eventually led to fixing other people's things as well. Originally, I bought my first Duramax to haul my race trailer around. It didn't take long before I developed a passion for diesel power as well, which led to even more work. By 2011, the garage was not cutting it anymore!   

 We moved to our first shop in Sugar Grove with 2,400 SF. We kept expanding into adjoining spaces growing to 8,500SF in only four years. By 2015, we ran out of space again and moved to a 22,500SF shop in Sycamore. More than doubling the size allowed us to bring powder coating operations in-house, which creates all those eye-popping colors you see under our customers’ hoods.  

In the Spring of 2018, we made another move into a 35,000 SF facility in DeKalb, Illinois after outgrowing the shop in Sycamore. The powder coat shop expanded to include high temperature resistant ceramic coatings and two curing ovens. We also added CNC mills and lathes to help advance our R&D work and high-quality production. 

In early 2022, we made our last move (hopefully) into a brand-new state of the art 112,000 SF facility just down the road from the last building in DeKalb, Illinois. Moving into this space, three times larger than our last shop, gives us many more opportunities and room for growth. Tripling the size of our Powder Coating Operation, additional CNC machines, more Auto Lifts, and new manufacturing lines including Laser Cutting and CNC Press Brake. 

Today, Wehrli Custom Fabrication & Powder Coating employs over 50 including my three brothers: Ryan, Mitch, and Chad along with my wife, Brittany. We're an ever-growing group of hard-working, dedicated individuals with talents streaming across the board. Our goal is to serve you with the highest quality products, service, and technical advice. 

Mission Statement

Wehrli Custom Fabrication Inc. specializes in high-performance diesel upgrades and custom metal fabrication. At WCFab, we take great pride in our reputation for providing the highest quality fabricated parts for your Duramax, Powerstroke, & Cummins Diesel trucks. We produce MADE IN THE USA turbo kits and custom performance parts on many different levels for your work, play, or competition diesel truck. You can rest assured you will receive the best quality product, fitment, performance, and customer service.   

To learn more, please click on the video below.

Jason and Ryan Wehrli

Jason and Ryan Wehrli

Sandwich Shop

2010 Shop - Two Truck Garage in Sandwich, IL

Sugar Grove Shop

2011 Shop - Sugar Grove, IL

Sycamore Shop

2015 Shop - Sycamore, IL

First Dekalb Shop

2018 Shop - DeKalb, IL

New Dekalb Shop

2022 Shop - DeKalb, IL