Wehrli Custom Fabrication

Diesel Truck Performance Parts

Wehrli Custom Fabrication

Wehrli Custom Fabrication makes intake, charge-air, cooling and drivetrain parts for diesel pickups: CNC billet and cast aluminum intake kits, intake horns and Y-bridges, intercooler pipe kits, aluminum upper coolant pipes and coolant tank kits, thermostat housings, up pipes, exhaust manifolds and downpipes, traction bar kits, brake master cylinder covers, differential covers and billet caps, bumper grilles and bumper spacers. Parts are listed for Chevrolet Silverado and GMC Sierra 2500 HD and 3500 HD with the Duramax LB7, LLY, LBZ, LMM, LML and L5P, Dodge and Ram 2500 and 3500 with the 5.9L and 6.7L Cummins, and Ford F-250 and F-350 Super Duty with the 6.7L Power Stroke. Many parts come in several powder coat colors, each with its own part number suffix.

Intake KitsIntercooler PipesTraction Bars
What We Carry from Wehrli Custom Fabrication
Billet and cast aluminum intake kits, horns and Y-bridges
Intercooler pipe kits
Upper coolant pipes, coolant tanks and thermostat housings
Up pipes, exhaust manifolds and downpipes
Traction bar kits
Master cylinder covers, billet caps and bumper parts
Most Wehrli Custom Fabrication parts are engine- and year-specific — pick your year, make and model, or check the fitment list and the color suffix on the product page before ordering.

231 products