About Us

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 Sandwich, Illinois in a two-truck garage at my parent's house. 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, and that eventually led to fixing other people's things. When I bought my first Duramax, originally 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 - so much, in fact, that by 2011 the garage was not cutting it anymore! Moving to our first shop in Sugar Grove where we kept expanding into adjoining spaces, growing from 2,400SF to 8,500SF in only four years. Then by 2015 we ran out of space again and moved to Sycamore into 22,500SF shop. More than doubling the size allowed us to bring a powder coating operation in-house which creates all those eye-popping colors you see under our customer's hoods.  

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

Today Wehrli Custom Fabrication & Powder Coating employs over 25 that include my three brothers: Ryan, Mitch, and Chad along with my partner, Brittany. We're an ever-growing group of hard-working and dedicated individuals with talents streaming across the board. Our goal is to serve you, the customer, with the highest quality products and best technical advice combined with great service. 

To learn more, please click on the video below.

Jason and Ryan Wehrli

Jason and Ryan Wehrli

WC Fab Staff

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 and upgrades for your Duramax, Powerstroke, & Cummins Diesel trucks. Since our beginning we have strived in producing the best products and service on the market, offering turbo kits and custom performance parts on many different levels for your work, play, or competition diesel truck. You can rest assured with the purchase of any of our custom fabricated MADE IN THE USA parts, you will receive the best quality product, fitment, performance, and customer service, before and after the sale. Whether you're looking to outfit your towing rig with our popular S400 over stock compound turbo kit, or if you're looking for four-digital horsepower numbers, we can handle it.