WEHRLI CUSTOM FABRICATION
Wehrli Custom Fabrication Inc. specializes in high-performance diesel upgrades and custom metal fabrication. With a focus on quality, fitment, performance, and customer service, WCFab offers a wide range of MADE IN THE USA turbo kits and custom performance parts for Duramax, Powerstroke, and Cummins Diesel trucks. Whether you use your truck for work, play, or competition, Wehrli Custom Fabrication has the products you need to enhance your diesel truck's performance.
Some of the top products in this category include the WEHRLI WCF100023 01-04 CHEVROLET 6.6L LB7 DURAMAX FUEL PRESSURE RELIEF VALVE DELETE KIT, WEHRLI WCF100024 01-16 CHEVROLET 6.6L DURAMAX VALLEY CP3 BLOCK OFF PLATE, and WEHRLI WCF100096 11-16 CHEVROLET 6.6L LML DURAMAX TURBO RESONATOR BILLET BLOCK OFF PLATE. Additionally, products like the WEHRLI WCF100229 01-05 & 11-16 CHEVROLET 6.6L DURAMAX HIGH FLOW RAIL FITTING and the WEHRLI WCF100271 01-16 CHEVROLET 6.6L DURAMAX TWIN CP3 PULLEY DEEP OFFSET provide options for those looking to further customize their diesel trucks.
When you choose Wehrli Custom Fabrication, you can trust that you are getting top-of-the-line products designed to enhance the performance of your diesel truck. Upgrade your Duramax, Powerstroke, or Cummins Diesel truck with the best parts in the industry from Wehrli Custom Fabrication.
Some of the top products in this category include the WEHRLI WCF100023 01-04 CHEVROLET 6.6L LB7 DURAMAX FUEL PRESSURE RELIEF VALVE DELETE KIT, WEHRLI WCF100024 01-16 CHEVROLET 6.6L DURAMAX VALLEY CP3 BLOCK OFF PLATE, and WEHRLI WCF100096 11-16 CHEVROLET 6.6L LML DURAMAX TURBO RESONATOR BILLET BLOCK OFF PLATE. Additionally, products like the WEHRLI WCF100229 01-05 & 11-16 CHEVROLET 6.6L DURAMAX HIGH FLOW RAIL FITTING and the WEHRLI WCF100271 01-16 CHEVROLET 6.6L DURAMAX TWIN CP3 PULLEY DEEP OFFSET provide options for those looking to further customize their diesel trucks.
When you choose Wehrli Custom Fabrication, you can trust that you are getting top-of-the-line products designed to enhance the performance of your diesel truck. Upgrade your Duramax, Powerstroke, or Cummins Diesel truck with the best parts in the industry from Wehrli Custom Fabrication.
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WEHRLI WCF100478 2001-2004 LB7 DURAMAX S300 SINGLE TURBO INSTALL KIT
WEHRLI CUSTOM FABRICATION
$3,362.61This kit will allow you to install an S300-based Turbo on your LB7 Duramax. Replacing all OEM plumbing and y-bridge with high flow 3" diameter piping. Oil Lines are high-quality stainless steel braided Parker Lines with the oil feed line routing from the...$3,362.61 -
WEHRLI WCF100475 2004.5-2007 5.9L CUMMINS S300 HIGH MOUNT 2ND GEN SWAP KIT
WEHRLI CUSTOM FABRICATION
$1,855.56-4" Shorty Down Pipe (Mates to exhaust system V-band)-4" Intake-Dry Air Filter-Outerwear's Pre-Filter Cover-Oil Feed Line Fitting-Oil Drain Line Assembly-1/2" T4 Spacer plate-3" Hot Side Intercooler Pipe (v-band style connection)-Silicone Boots-T-Bolt...$1,855.56 -
WEHRLI WCF100429 01-16 CHEVROLET 6.6L DURAMAX TWIN CP3 PULLEY DEEP OFFSET - RAW FINISH
WEHRLI CUSTOM FABRICATION
$410.40The WEHRLI WCF100429 01-16 Chevrolet 6.6L Duramax Twin CP3 Pulley Deep Offset in Raw Finish is a top-of-the-line accessory designed to enhance the performance of your Chevrolet vehicle. Crafted from high-quality billet aluminum, this CP3 pulley boasts...$410.40 -
WEHRLI WCF100358 UNIVERSAL T4 SPACER PLATE KIT 1.5IN W/STUDS & GASKETS
WEHRLI CUSTOM FABRICATION
$193.761 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, Nuts, & Washers-(2) T4 Gaskets Enhance the...$193.76 -
WEHRLI WCF100349 2001-2004 LB7 DURAMAX DRIVER (HOT) SIDE 3" INTERCOOLER PIPE KIT
WEHRLI CUSTOM FABRICATION
$388.871 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 Y-Bridge Kits. It is a full 3" intake tract from Turbo to...$388.87 -
WEHRLI WCF100342 01-04 CHEVROLET 6.6L LB7 DURAMAX 3.5IN INTAKE HORN
WEHRLI CUSTOM FABRICATION
$183.003 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 HP! Max-effort tuned trucks can see 10-15HP gains while...$183.00 -
WEHRLI WCF100333 2003-2007 6.0 POWERSTROKE 4" INTAKE KIT
WEHRLI CUSTOM FABRICATION
$570.53The 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 factory-style turbo, ensuring optimal performance and...$570.53 -
WEHRLI WCF100271 01-16 CHEVROLET 6.6L DURAMAX TWIN CP3 PULLEY DEEP OFFSET - BLACK ANODIZED FINISH
WEHRLI CUSTOM FABRICATION
$430.59Enhance the performance of your Chevrolet 6.6L Duramax engine with the WEHRLI WCF100271 Twin CP3 Pulley. Designed for 01-16 Chevrolet models, this pulley features a deep offset design to optimize the functioning of the twin CP3 injection pumps in your...$430.59 -
WEHRLI WCF100269 11-16 CHEVROLET 6.6L DURAMAX FASS FUEL SYSTEM RELOCATION BRACKET (CREW CAB ONLY)
WEHRLI CUSTOM FABRICATION
$141.292011-2016 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 or extended cab models** -Mount...$141.29 -
WEHRLI WCF100265 01-10 CHEVROLET 6.6L DURAMAX FASS FUEL SYSTEM RELOCATION BRACKET (CREW CAB ONLY)
WEHRLI CUSTOM FABRICATION
$127.832001-2010 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. **NOT COMPATIBLE on regular cab or extended cab...$127.83 -
WEHRLI WCF100248 11-16 CHEVROLET 6.6L LML DURAMAX TWIN CP3 KIT W/RAW PULLEY
WEHRLI CUSTOM FABRICATION
$1,877.09Enhance the performance of your 2011-2016 Chevrolet 6.6L LML Duramax engine with the WEHRLI WCF100248 Twin CP3 Pump Kit. This innovative kit allows you to effortlessly install a second high-pressure CP3 pump (sold separately) next to your AC compressor,...$1,877.09 -
WEHRLI WCF100247 06-10 CHEVROLET 6.6L LBZ/LMM DURAMAX TWIN CP3 KIT W/RAW PULLEY
WEHRLI CUSTOM FABRICATION
$1,742.53The WEHRLI WCF100247 06-10 CHEVROLET 6.6L LBZ/LMM DURAMAX TWIN CP3 KIT W/RAW PULLEY is a game-changing solution for enhancing your 2006-2010 LBZ/LMM Duramax engine's performance. This comprehensive kit empowers you to mount an additional high-pressure...$1,742.53 -
WEHRLI WCF100246 04.5-05 CHEVROLET 6.6L LLY DURAMAX TWIN CP3 KIT W/RAW PULLEY
WEHRLI CUSTOM FABRICATION
$1,742.53The WEHRLI WCF100246 04.5-05 CHEVROLET 6.6L LLY DURAMAX TWIN CP3 KIT W/RAW PULLEY is a high-performance upgrade for your 2004.5-2005 LLY Duramax engine, designed to boost power and efficiency. By incorporating a second high-pressure CP3 pump (available...$1,742.53 -
WEHRLI WCF100245 01-04 CHEVROLET 6.6L LB7 DURAMAX TWIN CP3 KIT W/RAW PULLEY
WEHRLI CUSTOM FABRICATION
$1,742.53Enhance the performance of your 2001-2004 LB7 Chevrolet 6.6L Duramax engine with the WEHRLI WCF100245 Twin CP3 Pump Kit. Designed to cater to the needs of diesel enthusiasts and high-powered builds, this kit provides the option to mount a secondary...$1,742.53 -
WEHRLI WCF100234 11-16 CHEVROLET 6.6L LML DURAMAX TWIN CP3 KIT W/BLACK ANODIZED PULLEY
WEHRLI CUSTOM FABRICATION
$1,877.09The WEHRLI WCF100234 11-16 CHEVROLET 6.6L LML DURAMAX TWIN CP3 KIT W/BLACK ANODIZED PULLEY is the ultimate solution for enhancing the performance of your 2011-2016 LML Duramax engine. This innovative Twin CP3 Pump Kit allows you to install a second...$1,877.09 -
WEHRLI WCF100233 06-10 CHEVROLET 6.6L LBZ/LMM DURAMAX TWIN CP3 KIT W/BLACK ANODIZED PULLEY
WEHRLI CUSTOM FABRICATION
$1,742.53The WEHRLI WCF100233 Twin CP3 Pump Kit for 06-10 Chevrolet 6.6L LBZ/LMM Duramax engines is a powerhouse addition to your vehicle's fuel system. Designed to accommodate a second high-pressure CP3 pump (sold separately), this kit is crafted to enhance the...$1,742.53 -
WEHRLI WCF100232 04.5-05 CHEVROLET 6.6L LLY DURAMAX TWIN CP3 KIT W/BLACK ANODIZED PULLEY
WEHRLI CUSTOM FABRICATION
$1,742.53The WEHRLI WCF100232 04.5-05 CHEVROLET 6.6L LLY DURAMAX TWIN CP3 KIT W/BLACK ANODIZED PULLEY is a precision-engineered solution designed to enhance the performance of your 2004.5-2005 LLY Duramax engine. With this twin CP3 pump kit, you can easily...$1,742.53 -
WEHRLI WCF100231 01-04 CHEVROLET 6.6L LB7 DURAMAX TWIN CP3 KIT W/BLACK ANODIZED PULLEY
WEHRLI CUSTOM FABRICATION
$1,742.53The WEHRLI WCF100231 01-04 CHEVROLET 6.6L LB7 DURAMAX TWIN CP3 KIT W/BLACK ANODIZED PULLEY is the ultimate solution for those looking to maximize the potential of their 2001-2004 LB7 model trucks. This Twin CP3 Pump Kit allows you to add a second...$1,742.53 -
WEHRLI WCF100230 04.5-10 CHEVROLET 6.6L DURAMAX HIGH FLOW RAIL FITTING (LONG)
WEHRLI CUSTOM FABRICATION
$82.08Long Stainless Steel Rail Fitting for LLY, LBZ, & LMM Driver side rail rear port. Also compatible with 6.7L Cummins applications. Ported 1/8" ID for increased fuel flow to eliminate restriction in the stock fitting which can cause rail pressure drops...$82.08 -
WEHRLI WCF100229 01-05 & 11-16 CHEVROLET 6.6L DURAMAX HIGH FLOW RAIL FITTING (SHORT)
WEHRLI CUSTOM FABRICATION
$52.48Short Stainless Steel Rail Fitting for LB7 & LLY or LML 6.6L Duramax Fuel Rails. Ported 1/8" ID for increased fuel flow to eliminate restriction in the stock fitting which can cause rail pressure drops in high performance applications. Fitment Note:...$52.48 -
WEHRLI WCF100121 11-15 CHEVROLET 6.6L LML DURAMAX 3IN DOWN PIPE (V-BAND STYLE)
WEHRLI CUSTOM FABRICATION
$294.68Replace 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 Numbers: 12643610, 12638304, 12643214 Note: 2015.5 and newer LML have a 3...$294.68 -
WEHRLI WCF100120 04.5-10 CHEVROLET 6.6L LLY/LBZ/LMM DURAMAX 3IN DOWN PIPE
WEHRLI CUSTOM FABRICATION
$262.39Replace 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 high flow, heat wrapped, high temp ceramic coated full...$262.39 -
WEHRLI WCF100119 01-04 CHEVROLET 6.6L LB7 DURAMAX 3IN DOWN PIPE
WEHRLI CUSTOM FABRICATION
$308.143" 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 following GM Part...$308.14 -
WEHRLI WCF100118 UNIVERSAL T4 SPACER PLATE KIT 0.5IN W/STUDS & GASKETS
WEHRLI CUSTOM FABRICATION
$110.341/2" 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, & Washers-(2) T4 Gaskets VEHICLE...$110.34 -
WEHRLI WCF100096 11-16 CHEVROLET 6.6L LML DURAMAX TURBO RESONATOR BILLET BLOCK OFF PLATE
WEHRLI CUSTOM FABRICATION
$59.21This 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 friendly. CNC machined in the USA from 6061 aluminum. Black...$59.21 -
WEHRLI WCF100024 01-16 CHEVROLET 6.6L DURAMAX VALLEY CP3 BLOCK OFF PLATE
WEHRLI CUSTOM FABRICATION
$92.85Billet 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 Block Off Plate. Crafted to precision, this block off...$92.85 -
WEHRLI WCF100023 FUEL PRESSURE RELIEF VALVE DELETE KIT FOR 01-04 GM DURAMAX LB7 ENGINE
WEHRLI CUSTOM FABRICATION
$92.85This 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 aftermarket y-bridges or turbo inlets which would...$92.85