Duramax, Cummins, & Powerstroke High Performance

Only the Highest Quality Parts


Our mission at Wehrli Custom Fabrication and Diesel is to provide you with the best custom engine builds and modification products and services available. We do this by keeping up on the latest technology, products, and designs in the industry.

As “power” trucking enthusiasts, we realize factory spec just doesn’t cut it for people like us. Whether it is adding extra power for work duties, such as towing or moving heavy equipment, or competition racing or sled pulling, your engine is going to need more than what the factory has to offer.

Our team will work with you to create the ideal modifications needed to have the look, power, and feel you want from your diesel engine. You can use one of our custom parts modification kits, build an engine with modifications, or bring your truck by and we can work on it in the shop.

We currently offer a wide variety of turbo kits for both Duramax and the Ford Power Stroke engines. We also feature Allison transmissions to our customers. Take the time to browse through our website and then feel free to contact us with any questions or to set up an appointment to discuss your engine and transmission upgrades.

Email: Jordan@WCFab.com
Phone: 630-277-8239
Shop: 417 Borden Ave, Sycamore, IL, 60178

Take a look at our complete selection of diesel products!

Become a Certified Dealer for Wehrli Custom Fabrication today!