Wehrli Custom Fabrication Inc.

Wehrli Custom Fabrication Inc. Specializing in diesel, truck, Jeep, & SXS upgrades, custom metal fab, machining, welding, & high temp ceramic and powder coat finishing.
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Duramax, Cummins, & Powerstroke High Performance; Repair, engine & Trans rebuilding, and Custom Built Turbo systems, Welding and Fabrication. Truck and Jeep accessories, bumpers, horns, lights, suspension, wheels and tires.

The WCFab Open House is more than dyno runs, show trucks, and a good time (don’t get us wrong - we love all of that too)...
09/09/2026

The WCFab Open House is more than dyno runs, show trucks, and a good time (don’t get us wrong - we love all of that too).

This event supports local students pursuing careers in the trades through the Wehrli Custom Fabrication Scholarship Fund, in partnership with the DeKalb County Community Foundation (IL).

By purchasing a raffle ticket, bidding in the live auction, putting your truck to the test in the Dyno Competition, or entering the Show & Shine, you’re helping the next generation in the trades. Plus, 5% of all merch sales are also donated!

Since 2022, we’ve raised over $48,000!

09/08/2026

It’s The Sandwich Fair Association- Sandwich, Illinois week! 🌽🎡🎟️

Come check out our booth, say hi to the team, and see what’s new. We’ll be here through Sunday!

While our crew is at the fair, we will have limited support available for the remainder of the week.

Who’s stopping by?!

It’s your final chance to catch us at a Truck Pull this year! ⏳Legally Altered will be at the Tri County Fair tonight at...
09/04/2026

It’s your final chance to catch us at a Truck Pull this year! ⏳

Legally Altered will be at the Tri County Fair tonight at 7 pm in Mendota. Both Legally Altered and After Hours will be at the Labor Day Celebration in Paw Paw on Sunday at noon.

09/03/2026

The details make the build. 🦚

This 2020+ L5P Duramax Stage 2 High Flow Bundle Kit, Upper Coolant Pipe, and Coolant Tank are decked out in Prismatic Powders Peacock Sapphire, proving that our parts can look just as good as they perform.

09/02/2026

The upgrade your truck has been waiting for is here!

Sitting one inch taller and two inches wider than a stock PYO wheel, these wheels will improve your tire size options. Plus, they’re 25% lighter!

09/01/2026

Everyone loves a clean LB7! 🫶

LB7 Duramax upgrades shown include:
▪️ Duramaxtuner.com Stealth STR Turbo
▪️ Intake Kit & Intake Horn
▪️ Driver & Passenger Side Intercooler Pipes
▪️ Brake Master Cylinder Reservoir Cover & Cap
▪️ Coolant Tank
▪️ Coolant Pipe
▪️ PYO Wheels

This could be you! 🫵Get registered for our Open House Dyno Competition and Show & Shine to claim your spot!In addition t...
08/31/2026

This could be you! 🫵

Get registered for our Open House Dyno Competition and Show & Shine to claim your spot!

In addition to a sick billet trophy, there’s $11,000 in Dyno prize money and $2300 in Show & Shine prizes on the line! Dyno Competition Prizes are only open to those who pre-register.

Sign up at WCFab.com/OpenHouse

Better watch out, we’ve got some new competition in the Illini State Pullers - ISP 6500 (Extra) Light Pro Class!
08/28/2026

Better watch out, we’ve got some new competition in the Illini State Pullers - ISP 6500 (Extra) Light Pro Class!

We had a blast at Sick The Magazine Sick Michigan Miles last week!With over a thousand miles logged and two sets of tire...
08/27/2026

We had a blast at Sick The Magazine Sick Michigan Miles last week!

With over a thousand miles logged and two sets of tires, we stopped at four drag strips, countless restaurants, several shops, one Christmas store, and a lighthouse.

To top it all off, Dustin brought home the Quickest Diesel award!

Bet you haven’t seen one like this before. 😏Jamaine's right hand drive LB7 Duramax is built to be Australia’s toughest C...
08/26/2026

Bet you haven’t seen one like this before. 😏

Jamaine's right hand drive LB7 Duramax is built to be Australia’s toughest Cateye tourer.

This truck is running an S300 Single Turbo Kit with a BorgWarner Boosted S366 SXE Turbo, Billet Thermostat Housing & Upper Coolant Pipe, and Coolant Tank, all powder coated in Bengal Red.

Address

231 Harvestore Drive
DeKalb, IL
60115

Opening Hours

Monday 8:30am - 5pm
Tuesday 8:30am - 5pm
Wednesday 8:30am - 5pm
Thursday 8:30am - 5pm
Friday 8:30am - 5pm

Telephone

+16302778239

Website

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