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4" Intake Kits 4" Intake Kits Learn More
Intercooler Pipes Intercooler Pipes Learn More
Down Pipes & Up Pipes Down Pipes & Up Pipes Learn More
3" Y-Bridge Kits 3" Y-Bridge Kits Learn More
Coolant Tank Kits and Coolant Pipes Coolant Tank Kits and Coolant Pipes Learn More
Engine Dress Up Engine Dress Up Learn More
Exterior Exterior Learn More
Gauges & Monitors Gauges & Monitors Learn More
Side by Side (SXS/UTV) Parts Side by Side (SXS/UTV) Parts Learn More
Suspension and Chassis Suspension and Chassis Learn More
Fuel Systems Fuel Systems Learn More
Turbo Kits Turbo Kits Learn More

Featured Products

WCFAB Red
2017-2019 L5P Duramax 4" Intake Kit with Air Box
Price: $539.00
2015-2019 Chevrolet Silverado 2500/3500HD Lower Valance Filler Panel with Tow Hook Cutouts
Price: $209.00
2015-2019 GM 2500/3500HD Truck 3/4 in. Front Bumper Spacer Kit
Price: $229.00
2017-2019 L5P Duramax S400 Single Turbo Install Kit
Price: $3,495.00
2020-2021 GM 2500/3500HD Truck 3/4 in. Front Bumper Spacer Kit
Price: $179.00
With Logo - Fine Texture Black WCF100392
2020-2021 GMC 2500/3500HD Fender Flare Billet Marker Light Delete Kit
Price: $249.00
2017-2019 L5P Duramax Transmission Cooler Thermostat Bypass Plug
Price: $55.00
2020-2021 L5P Duramax 3.5" Passenger (Cold) Side Intercooler Pipe Kit
Price: $339.00
Fass Fuel System Relocation Bracket for 2017+ L5P Duramax
Price: $59.00
1999-2019 GM 1500/2500/3500 Billet Aluminum Brake Master Cylinder Cap, Black Anodized
Price: $35.00
Fine Texture Black - Front
2001-2010 GM 2500/3500 HD Lower Splash Shield Kit
Price: $259.00
2001-2021 Duramax Billet Aluminum Oil Fill Cap, Black Anodized
Price: $49.00
2003-2009 Cummins Upper Coolant Pipe
Price: $139.00
2004.5-2010 LLY/LBZ/LMM Duramax Billet Crankcase Vent (PCV) Fitting Kit, Black Anodized
Price: $44.00
2006-2010 LBZ/LMM Duramax Passenger Side Intercooler Outlet Elbow Kit
Price: $209.00
Kingsport Grey
2006-2010 LBZ/LMM Duramax Top Outlet Billet Thermostat Housing and Upper Coolant Pipe Kit
Price: $399.00
Kingsport Grey
2006-2010 LBZ/LMM Duramax Top Outlet Billet Thermostat Housing and Upper Coolant Pipe Kit for DUAL CP3
Price: $399.00
Fine Texture Black - Front
2011-2019 GM 2500/3500 HD Lower Splash Shield Kit
Price: $259.00
WCFab Red
2013-2015 6.7L Cummins Upper Coolant Pipe for Dual Radiator
Price: $199.00
2015-2019 Chevrolet Silverado 2500/3500HD Lower Valance Filler Panel without Tow Hook Cutouts
Price: $209.00
2017+ L5P Duramax CP3 Conversion Kit
Price: $2,295.00
2017-2021 L5P Duramax Stealth 67mm Drop In VGT
Price: $3,600.00
2019+ Honda Talon Billet Aluminum Hub Cap Kit for OEM Wheels
Price: $59.00
Talon Red (-TNR)
2019+ Honda Talon X/R 2 Seat Rock Sliders
Price: $645.00
Talon Red (-TNR)
2019+ Honda Talon X/R 2 Seat Tree Kickers
Price: $645.00
Upper and Lower Weld On Bumper Repair Kit Brackets
2019+ Honda Talon X/R DIY Front Bumper Mount Repair Kit
Price: $35.00
Fine Texture Black
2019+ Honda Talon X/R Front Bumper with Fair Lead Mount
Price: $549.00
Honda Talon Red (-TNR)
2019+ Honda Talon X/R Front Bumper without Fair Lead Mount
Price: $529.00
Fine Texture Black
2019+ Honda Talon X/R Lower Front Door Kit
Price: $219.00
2019+ Honda Talon X/R Winch Mount Plate Kit For WCFab Bumper
Price: $119.00
2020-2021 Duramax 60" Traction Bar Kit (RCLB/CCSB/DCSB)
Price: $859.00
Fine Texture Black - Front
2020-2021 GM 2500/3500 HD Lower Splash Shield Kit
Price: $259.00
2020-2021 L5P Duramax 3" Driver (Hot) Side Intercooler Pipe Kit
Price: $299.00
2020-2021 L5P Duramax 3.5" Turbo Intake Horn
Price: $219.00
2020-2021 L5P Duramax 4" Intake Resonator Pipe
Price: $199.00
2020-2021 L5P Duramax Cognito - 3" Performance Leveling Kit
Price: $1,169.95
2020-2021 L5P Duramax Cognito - 3" Performance Leveling Lift Kit
Price: $1,349.95
2020-2021 L5P Duramax Upper Coolant Pipe Kit
Price: $149.00
Billet Aluminum Coolant Tank Cap, Clear Anodized
Price: $36.95
Chemical Guys Bare Bones Undercarriage Spray, 16 fl oz
Price: $9.99
Chemical Guys Hybrid V07 Optical Select High-Gloss Spray Sealant & Quick Detailer, 16 fl oz
Price: $17.99
Chemical Guys Meticulous Matte Detailer and Spray Sealant, 16 fl oz
Price: $9.99
Exergy Performance Summer Diesel Fuel Additive
Price: $6.00
Exergy Performance Winter Diesel Fuel Additive
Price: $5.00
Men's Flannel - Grey with Red Buffalo Plaid Accents, Limited Edition
Price: $65.00
Men's Pullover Flag Hoodie 
Price: $40.00
WCFab X FUEL Black Crew Socks
Price: $13.00

Welcome to Wehrli Custom Fabrication Inc.

Thanks to our satisfied growing customer base of enthusiasts like yourself, Wehrli Custom Fabrication has continued to make a distinct footprint in the ever-growing, competitive, diesel performance industry. Leading the way in product development and new ideas for several years, we continue to strive and excel in offering the latest and greatest products for your truck. Whether you use your truck for work, play, performance, or racing, you can trust US to exceed YOUR expectations.

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Wehrli Custom Fabrication Inc.