WEHRLI CUSTOM FABRICATION

The WEHRLI WCF 100132 2011-2016 LML DURAMAX WCFAB X PPE HIGH-CAPACITY CAST ALUMINUM ENGINE OIL PAN is the premium solution to replace the inefficient stock oil pan in your 2011-2016 LML Duramax...

The WEHRLI WCF 100678 UPPER COOLANT PIPE 03-09 CUMMINS 6.7L is a top-quality aluminum upper coolant pipe designed specifically for 2003-2009 5.9L & 6.7L Cummins engines. Say goodbye to your OEM...

This kit allows you to remove the Fuel Pressure Relief Valve (FPRV) located on top of the intake runner of your LB7 6.6L Duramax. This modification allows the necessary clearance needed to run larger...

Billet Block Off plate for valley CP3 pump. Black anodized finish with engraved logo. Enhance the performance of your 2001-2016 Chevrolet 6.6L Duramax engine with the WEHRLI WCF100024 Billet CP3...

This low profile billet aluminum antenna is styled to resemble a TIG torch cap and is designed to replace the long, ugly OEM aerial antenna on your 2007.5-2019 GM HD 2500 / 3500 or 2014-2023 GM 1500...

This quick and easy to install, billet aluminum plate allows you to clean up your engine bay in minutes by removing the big plastic resonator connected to the intake. 100% warranty and emissions...

These Fabricated Aluminum Differential Covers for AAM 11.50 Rear Axle on Dodge / RAM and GM HD Trucks from WCFab are precision laser cut, CNC Bent, and fully TIG welded aluminum assemblies designed...

Fabricated Aluminum Differential Cover for Rear Axle on 2020-2025 GM Duramax HD Trucks and 2019-2024 Dodge Ram 2500/3500. Comes finished in your choice of WCFab's signature custom powder coat colors...

1/2" Thick steel Divided T4 Spacer Plate Kit, Ceramic Coated Black. Includes M10 Mounting Studs 1" long, nuts, washers, and two T4 Gaskets -1/2" T4 Spacer Plate, Ceramic Coated-M10 Studs, Nuts, &...

3" LB7 Turbo Downpipe for use with OEM charger or Stealth series Drop in. High Temp Coated and Heat Wrap included. Compatible with both Standard & California Style Exhaust Flange. Replaces the...

Replace the restrictive crushed factory turbo down pipe / exhaust front pipe on the 6.6L Duramax Diesel V8 found in the 2004.5 - 2010 Chevrolet Silverado / GMC Sierra 2500 / 3500 HD truck with this...

Replace the restrictive crushed factory down pipe with this full 3" down pipe. For use with factory turbo or factory style drop in turbo. Replaces the following GM Part...

Enhance the performance and efficiency of your 2017-2024 Chevrolet Silverado or GMC Sierra 2500 / 3500 HD truck equipped with the L5P 6.6L Duramax engine with the WEHRLI WCF100129 3.5" Down Pipe...

2001-2007 LB7/LLY/LBZ Duramax Allison Transfer Case Braces have been developed and tested for use on high horsepower Duramax applications, adding significant strength and reducing driveline flex...

The WEHRLI WCF100131 2001-2010 LB7/LLY/LBZ/LMM Duramax WCFab X PPE High-Capacity Cast Aluminum Oil Pan offers a superior solution to upgrade your vehicle. Designed to replace the stock steel oil pan,...

Experience superior oil control and engine performance with the WEHRLI WCF100133 2017-2019 L5P DURAMAX WCFab X PPE High-Capacity Cast Aluminum Engine Oil Pan. Enhance your vehicle's capabilities by...

The WEHRLI WCF100134 2020-2024 L5P Duramax WCFab X PPE High-Capacity Cast Aluminum Engine Oil Pan is the ultimate solution for enhancing your vehicle's engine performance and durability. Say goodbye...

2007.5-2010 LMM Duramax Allison Transfer Case Braces have been developed and tested for use on high horsepower Duramax applications, adding significant strength and reducing driveline flex common to...

2011-2019 LML/L5P Duramax Allison Transfer Case Braces have been developed and tested for use on high horsepower Duramax applications, adding significant strength and reducing driveline flex common...

The factory plastic GM Coolant Heater Core Firewall Fitting is a common failure point on Duramax trucks and other GM vehicles. Our made in the USA, billet aluminum direct-fit replacement is more...

This WCFab stainless steel license plate mount is designed specifically for use with our 2015-2019 Chevrolet Silverado 2500 / 3500 HD Lower Front Bumper Valance Filler Panels. Laser cut and CNC bent...

WCFab X Fleece Performance Engineering Thermostat Housing for 1998.5-2018 5.9L & 6.7L Cummins is a direct replacement upgrade for the unsightly OEM part. This coolant elbow kit features -8 AN...

2001-2010 LB7/LLY/LBZ/LMM Duramax Heavy Duty Engine Mounts developed and tested for use on high horsepower application to reduce engine flex in the chassis and broken OEM engine mounts.These high...

2011-2016 LML Duramax Heavy Duty Engine Mounts developed and tested for use on high horsepower application to reduce engine flex in the chassis and broken OEM engine mounts.These high performance...

This LBZ 3" Y-Bridge Kit is an upgraded high flow intake kit for the 2006-2007 6.6L Duramax diesel engine which replaces the OEM upper intake manifold supplying air to the engine intake runners. The...

This LMM 3" Y-Bridge Kit is an upgraded high flow intake kit for the 2007.5-2010 LMM 6.6L Duramax which replaces the OEM upper intake manifold supplying air to the engine intake runners. The OEM...

New Gasket Kit for 2017-2023 L5P and 2019+ L5D 6.6L Duramax OEM/VGT Turbocharger. Recommended when installing new OEM and stock appearing / upgraded aftermarket drop in style turbochargers and when...

Replace the fragile plastic OEM fittings on the top of your 2004.5-2010 LLY/LBZ/LMM Duramax engine which are prone to damage with these high quality, black anodized, CNC machined billet aluminum...

The WEHRLI WCF100190 2001-2004 LB7 DURAMAX 4" INTAKE KIT WITH AIR BOX from WCFab is the ultimate upgrade for your GM LB7 6.6L Duramax diesel engine. This meticulously designed intake kit and air box...

WCFab 2006-2007 GM LBZ 6.6L Duramax 4" Intake Kit with Air Box. This high flow, fabricated aluminum intake pipe and air box enclosure with dry filter assembly replaces the restrictive plastic factory...

Elevate your diesel engine's performance with the WEHRLI WCF100193 2007.5-2010 LMM DURAMAX 4" INTAKE KIT WITH AIR BOX by WCFab. This top-tier intake solution is specially designed for the 2007.5-2010...

The WEHRLI WCF100194 2011-2016 LML DURAMAX 4" INTAKE KIT WITH AIR BOX is a top-of-the-line upgrade for your 2011-2016 GM LML 6.6L Duramax diesel engine. Crafted with precision and performance in...

The WCFab L5P Up Pipe Bolt Kit is comprised of 12 specially selected high-strength ARP fasteners and matched washers with a pack of assembly lube are designed as an upgrade to the smaller and failure...

Clean up the engine bay of your 2001-2019 Chevy Silverado or GMC Sierra 2500/3500 Duramax truck with this custom powder coated fabricated aluminum brake reservoir cover from WCFab that fits over the...

Clean up the engine bay of your 1999-2025 Chevy Silverado or GMC Sierra 1500/2500/3500 truck with this anodized billet aluminum brake reservoir cap from WCFab. This is a complete cap not a cover. CNC...

Clean up the engine bay of your 1999-2025 Chevy Silverado or GMC Sierra 1500/2500/3500 truck with this anodized billet aluminum brake reservoir cap from WCFab. This is a complete cap not a cover. CNC...

This Premium Duramax/Cummins Rear Differential Cover Bolt Kit is an optional upgrade for our Diff Covers. Comprised of 12 specially selected high strength Stainless Steel 12-point ARP fasteners and...

Aluminum Upper Coolant Pipe for 2019-2024 6.7L Cummins replaces the OEM rubber upper coolant hose and comes powder coated in your choice of colors! For use with OEM RAM radiator. Aftermarket...

The WCFab ARP Bolt Kit for 2001-2016 Duramax Up Pipes or LB7 Turbo Down Pipes is comprised of 6 specially selected high strength 12 point ARP fasteners and matched washers with a pack of assembly...

Aluminum Upper Coolant Pipe for 2019-2024 6.7L High Output Cummins replaces the OEM rubber upper coolant hose and comes powder coated in your choice of colors! For use with OEM RAM radiator...

Clean up the engine bay of your 1998.5-2024 5.9L or 6.7L Cummins truck with this clear anodized billet aluminum brake reservoir cap from WCFab. This is a complete cap, not a cover. CNC machined in...

Clean up the engine bay of your 1998.5-2024 5.9L or 6.7L Cummins truck with this black anodized billet aluminum brake reservoir cap from WCFab. This is a complete cap, not a cover. CNC machined in...

WCFab CP3 Conversion Kit for 2011-2016 Chevrolet Silverado and GMC Sierra 2500 HD and 3500 HD trucks equipped with the LML 6.6L Duramax Turbo Diesel engine. The Factory CP4.2 Pump Found on 2011-2016...

4" Turbo Down Pipe for Cummins with High Mount style turbo on 2nd Gen style exhaust manifold. The upper flange measures 4.6" diameter to mate with S400 exhaust housing. The lower flange connects to...

2001-2010 LB7, LLY, LBZ, LMM Crew Cab Duramax Fass Fuel System Relocation Mounting Bracket. Relocates the FASS fuel system to underneath the truck on the inside of the driver side frame rail.  ...

2020-2025 L5P Duramax Fabricated Aluminum Coolant Tank Kit, mounts in OEM coolant tank location. Dress up your engine bay by replacing the ugly clear plastic coolant reservoir with our custom powder...

2011-2016 LML Crew Cab Duramax Fass Fuel System Relocation Mounting Bracket. Relocates the FASS fuel system to underneath the truck just before the fuel tank.   **NOT COMPATIBLE on a regular cab...

2017-2023 L5P Duramax Fass Fuel System Relocation Mounting Bracket. Relocates the FASS fuel system to underneath the truck just in front of the fuel tank. -Mount Bracket-Zinc primer & Semi gloss...

4" Turbo Down Pipe for Cummins with High Mount style turbo on 2nd Gen style exhaust manifold. The upper flange measures 4" diameter to mate with S300 exhaust housing. The lower flange connects to the...

2019-2024 6.7L Cummins Fabricated Aluminum Coolant Tank Kit, mounts in OEM coolant tank location. Dress up your engine bay by replacing the ugly clear plastic coolant reservoir with our custom...

2011-2014 Chevrolet Silverado HD Bumper Grilles from WCFab are constructed from heavy gauge stainless steel and designed to maintain airflow to your transmission cooler while offering a significant...

2015-2019 LML/L5P Chevrolet Silverado HD Bumper Grilles from WCFab are constructed from heavy gauge stainless steel and designed to maintain airflow to your transmission cooler while offering a...

The WEHRLI WCF100291 Bumper Grille is a must-have accessory for 2015-2019 LML/L5P GMC Sierra HD owners looking to enhance both the protection and style of their trucks. Crafted from heavy gauge...

The WEHRLI WCF100292 6.7L Cummins Stage 1 High Flow Intake Bundle Kit is the ultimate enhancement to unleash the full potential of your 2019-2023 6.7 Cummins engine. Designed to revolutionize your...

WCFab 2001-2004 GM LB7 6.6L Duramax 4" Stage 2 Intake Kit with Air Box. This high flow, fabricated aluminum intake pipe and air box enclosure with dry filter assembly replaces the restrictive plastic...

WCFab 2004.5-2005 GM LLY 6.6L Duramax Stage 2 Intake Kit with Air Box. This high flow, fabricated aluminum intake pipe and air box enclosure with dry filter assembly replaces the restrictive plastic...

WCFab 2006-2007 GM LBZ 6.6L Duramax Stage 2 Intake Kit with Air Box. This high flow, fabricated aluminum intake pipe and air box enclosure with dry filter assembly replaces the restrictive plastic...

The WEHRLI WCF100303 2007.5-2010 LMM DURAMAX 4" INTAKE KIT WITH AIR BOX STAGE 2 from WCFab is a top-of-the-line, high-performance upgrade for your 2007.5-2010 GM LMM 6.6L Duramax diesel engine. This...

 Heavy Duty Fabricated Turbo Pedestal allows you to mount a T4 flange style Turbo for custom build racing applications- 2" OD Stainless Steel 11 gauge tubing- Compatible with OEM or WCFAB 2"...

The 3" High Flow Passenger Side Upper Crossover Intercooler Pipe for 2011-2016 LML Duramax provides a 20% increase in size over the OEM part allowing for less restriction in airflow and an increase...

High Flow Intake Bundle Package for 2003-2007 5.9L Cummins. Saves $29.00 vs buying components individually! This Kit Includes: WCF100544 - 3" Passenger Side Intercooler Pipe WCF100528 - 3.5" Driver...

The WEHRLI WCF100333 2003-2007 6.0 Powerstroke 4" Intake Kit is the ultimate upgrade for your 2003-2007 Ford 6.0L Powerstroke engine. This high-flow intake kit is specifically designed for the...

3 1/2" Turbo Intake Horn for 2001-2004 LB7 Duramax. Compatible with factory IHI Turbo or upgraded drop in IHI Turbos and OEM or aftermarket intakes. Great upgrade offering quicker spool up and more...

4" Intake Kit for 2003-2007 Dodge Ram 2500 / 3500 5.9L Cummins with Factory or OEM style Turbocharger. This high flow, fabricated aluminum intake pipe with dry filter assembly replaces the...

1 Piece 3" Driver Side Intercooler pipe that was designed to replace the factory pipe and low-quality silicone boots. This Intercooler pipe compliments our S400 over stock twin turbo kit or LB7...

LLY, LBZ, LMM Duramax One Piece High Flow 3" Driver Side Intercooler pipe. Replaces the 2 1/2" OEM inter cooler with a full 3" pipe. The OEM Pipe uses a reverse style bead roll design at the turbo...

The 3" High Flow Driver Side Intercooler Pipe for 2011-2016 LML Duramax replaces the factory two piece 2 ½" pipe with a high flow one piece 3" pipe. It also includes upgraded silicone boots...

The 3" High Flow Passenger Side Intercooler Pipe for 2004.5-2005 LLY Duramax replaces the 2.5" factory aluminum pipe with a high flow, mandrel bent, 14 ga. aluminum one piece 3" pipe. This part uses...

1 1/2" Thick Steel Divided T4 Spacer Plate Kit, Ceramic Coated Black. Includes M10 Mounting Studs 2.75" long, nuts, washers, and two T4 Gaskets -1 1/2" T4 Spacer Plate, Ceramic Coated-M10 Studs,...

Driver Side 3" Intercooler Pipe for use with OEM style Intake Horn and intercooler. Replaces leak prone plastic OEM parts with high quality mandrel bent aluminum pipe, silicone boots and stainless...

WCFab Stage 2 Intake Kit with Air Box for 2017-2019 GM L5P 6.6L Duramax equipped Chevrolet Silverado and GMC Sierra 2500 / 3500 HD trucks. This high-flow fabricated aluminum intake pipe, intake horn,...

Increase fuel filter capacity and time between filter changes on your 2017-2019 Chevrolet Silverado or GMC Sierra (as well as 2020-2024 Long Bed trucks) equipped with the L5P Duramax 6.6L diesel...

Increase fuel filter capacity and time between filter changes on your 2020-2024 Chevrolet Silverado or GMC Sierra 2500 / 3500 HD truck equipped with the 6.6L L5P Duramax diesel by upgrading from a...

WCFab’s 2001-2016 Duramax Billet Exhaust Manifolds replace the restrictive factory cast parts with high-strength, TIG-welded high-flow billet steel components designed to enhance exhaust flow...

The 3" High Flow Driver side Intercooler pipe for the 2020-2025 L5P Duramax. Replaces the OEM two piece design with a high flow one piece 3" pipe. It also includes upgraded silicone boots that...

Enhance the performance of your 2006-2010 LBZ/LMM Duramax with the WEHRLI WCF100367 3.5" Passenger (Cold) Side Intercooler Pipe Kit. Crafted to perfection, this kit features a high-flow 3.5" aluminum...

WCFab’s 2017-2025 Duramax Billet Exhaust Manifolds with EGR Riser Flange replace the restrictive factory cast parts with high-strength, TIG-welded high-flow billet steel components designed to...

Oil line kit For S400 Turbo in a Twin or Remote Mount Application   Stainless braided drain and feed Lines, Fittings for turbo, oil pan and engine block. Enhance the performance and reliability...

The WCFab 3.5" High Flow Passenger Side Intercooler Pipe for 2020-2025 L5P 6.6L Duramax equipped Chevrolet Silverado or GMC Sierra 2500 / 3500 HD truck replaces the restricted OEM rubber/plastic...

***This kit includes 60" long bars for Crew Cab Short Bed Models*** ***This kit is for 2017-2024 Ford F-250 and F-350 Super Duty Trucks with 4 inch Axle Tube Diameter; Sterling 10.5” and...

Clean up the look of your 2020-2025 GMC Sierra or Denali 2500 or 3500 HD truck by replacing the amber fender flare marker lights with these CAD Designed, CNC machined, billet aluminum marker light...

Clean up the look of your 2020-2025 GMC Sierra or Denali 2500 or 3500 HD truck by replacing the amber fender flare marker lights with these CAD Designed, CNC machined, billet aluminum marker light...

High Flow Intake Bundle Package for 2003-2007 5.9L Cummins. Saves $29.00 vs buying components individually! This Kit Includes: WCF100544 - 3" Passenger Side Intercooler Pipe WCF100528 - 3.5" Driver...

Clean up the look of your 2020-2025 GMC Sierra or Denali 2500 or 3500 HD truck by replacing the amber fender flare marker lights with these CAD Designed, CNC machined, billet aluminum marker light...

Clean up the engine bay of your 1998.5-2024 Cummins with this Billet Aluminum Clear Anodized Oil Fill Cap from WCFab. This is a complete cap, not a cover. Direct OEM replacement for the factory...

Clean up the engine bay of your 1998.5-2024 Cummins with this Billet Aluminum Black Anodized Oil Fill Cap from WCFab. This is a complete cap, not a cover. Direct OEM replacement for the factory...

High Flow Intake Bundle Package for 2003-2007 5.9L Cummins. Saves $29.00 vs buying components individually! This Kit Includes: WCF100544 - 3" Passenger Side Intercooler Pipe WCF100528 - 3.5" Driver...

2011-2014 Silverado 2500HD / 3500HD CNC machined billet aluminum spacer kits from WCFab move the front bumper forward off the frame horns 3/8 of an inch while maintaining maximum mounting surface...

Longer and Larger I.D. High-Pressure Line than Street Series Kit (WCF100711) and other CP3 Conversion Kits offered on the market which allows for more fuel volume. High pressure fitting at the rail...

2011-2014 Silverado 2500HD / 3500HD CNC machined billet aluminum spacer kits from WCFab move the front bumper forward off the frame horns 3/4 of an inch while maintaining maximum mounting surface...

The WEHRLI WCF100405 Thermostat Housing and Upper Coolant Pipe Kit for 01-05 Chevrolet 6.6L LB7/LLY Duramax engines is a high-performance upgrade that revolutionizes coolant routing for enhanced...

Built in house at WCFab these traction bar brackets are designed specifically for use on the Dana M275 rear axle option commonly found on 2017 and newer F-350 (SRW) trucks which features a 4"...

Stage 1 upgrade for the 2020-2025 L5P 6.6L Duramax Diesel Chevrolet Silverado or GMC Sierra 2500 / 3500 HD truck improves airflow between the turbo and engine for improved efficiency, throttle...

Already have an air intake and turbo down pipe that you're happy with, but looking to improve your LB7's performance and efficiency by addressing weak points in the OEM components between the turbo...

The WCFab LBZ/LMM 4.8 in. High Flow Cast Aluminum intake horn for LBZ/LMM replaces the restrictive OEM plastic inlet to provide increased airflow to your turbo for improved performance and throttle...

The Stage 2 upgrade for the 2020-2024 L5P 6.6L Duramax equipped Chevrolet Silverado or GMC Sierra 2500 / 3500 truck combines our Stage 1 High Flow Bundle and Stage 2 Intake Kit into a single...

The Top Outlet Billet Thermostat Housing and Upper Coolant Pipe Kit for 2006-2010 LBZ/LMM 6.6L Duramax replaces the OEM upper radiator hose that normally crosses over the driver side valve cover as...

This bracket allows the passenger side battery on 2011-2016 Chevrolet Silverado and GMC Sierra LML Duramax diesel trucks to be relocated forward into the OEM air box location behind the headlight in...