Cummins High Mount 2nd Gen Swap Oil Feed and Drain Line Kit, with extended oil drain fitting assembly. Teflon lined stainless steel braided #6 feed and #10 drain lines.

• Reusable O-Ring Seal on drain flange eliminates leaking / torn paper gaskets at the connection to turbo center section
• Extends -10AN Male Fitting 4" from turbo drain flange for easy access to drain line connection
• Compatible with T3/T4/T6 Midframe Turbochargers using 2 in. on center bolt spacing

2011-2016 LML Crew Cab Duramax Fass Fuel System Relocation Mounting Bracket for Chevy Silverado or GMC Sierra 2500 / 3500 trucks. WCFab's precision laser cut bracket relocates the FASS fuel system to underneath the truck just in front of the fuel tank on the inside of the driver side frame rail moving the lift pump out of the debris path of the rear tires. Provides a stealthy, hidden installation when paired with FASS short style filters and simplifies fuel line routing when using a sump style pickup on the tank.

• Semi-Gloss Black Powder Coat Finish with Epoxy Primer Base Coat for Superior Corrosion Resistance
• Mount Bracket Bolts Directly to Frame Using Pre-Existing Holes
• Made in USA

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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 coated fabricated aluminum coolant tank with sight glass. Includes black anodized CNC machined billet aluminum cap, mounting hardware, overflow hose and low coolant sensor. Will fit on stock trucks with no other modifications necessary. Uses OEM mounting points. Installs easily with basic hand tools. - - Replaces the following GM Part Numbers: 23394082, 84622147 - - Supersedes WCF100679

• Coolant Tankand Mounting Hardware
• Coolant Level Sight Glass
• Custom Powder Coat Finish
• Low Coolant Level Sensor
• Billet Anodized Cap
• Over Flow Hose

This Part Fits:

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 coated fabricated aluminum coolant tank with sight glass. Includes black anodized CNC machined billet aluminum cap, mounting hardware, overflow hose and low coolant sensor. Will fit on stock trucks with no other modifications necessary. Uses OEM mounting points. Installs easily with basic hand tools. - - Replaces the following GM Part Numbers: 23394082, 84622147 - - Supersedes WCF100679

• Coolant Tankand Mounting Hardware
• Coolant Level Sight Glass
• Custom Powder Coat Finish
• Low Coolant Level Sensor
• Billet Anodized Cap
• Over Flow Hose

This Part Fits:

2001-2010 LB7, LLY, LBZ, LMM Crew Cab Duramax Fass Fuel System Relocation Mounting Bracket for Chevy Silverado or GMC Sierra 2500 / 3500 trucks. WCFab's precision laser cut bracket relocates the FASS fuel system to underneath the truck on the inside of the driver side frame rail moving the lift pump out of the debris path of the rear tires. Provides a stealthy, hidden installation when paired with FASS short style filters and simplifies fuel line routing when using a sump style pickup on the tank.

• Semi-Gloss Black Powder Coat Finish with Epoxy Primer Base Coat for Superior Corrosion Resistance
• Mount Bracket Bolts Directly to Frame Using Pre-Existing Holes
• Includes Grade 8 Hardware
• Made in USA

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WCFab 4" Turbo Down Pipe for 2004.5-2007 5.9L Cummins with High Mount style turbo on 2nd Gen style exhaust manifold allows for a quick and simple down pipe install. No cutting of your exhaust system required! This down pipe connects to the v-band flange on the exhaust pipe just as your factory turbo/cast elbow did. The upper flange measures 4.6" diameter to mate with S400 exhaust housing. The lower flange connects to the factory exhaust system v-band flange using the OEM v-band clamp. This down pipe is high-temperature ceramic coated and includes heat wrap with clamps and a 4" V-band Clamp for turbo connection.

• The lower v-band flange connects to the factory exhaust system v-band flange using the OEM v-band clamp (New replacement OEM V-Band Clamp sold separately).
• The S400 version (WCF100262) is meant for use with the standard S400 flat exhaust housing flange, which measures 4.6" diameter. (4" v-band clamp included)
• This down pipe comes black high-temperature ceramic coated and includes heat wrap with clamps and V-band Clamp for turbo housing connection.
• Also compatible with 2003-2004 model year trucks which have updated their exhaust system front pipe to the 2004.5-2007 style part
• 4" Turbo Down Pipe for 2004.5-2007 5.9L Cummins with High Mount style turbo on 2nd Gen style exhaust manifold
• Made in USA

This Part Fits:

Clean up the engine bay of your 1998-2024 Dodge Ram 2500/3500 5.9L or 6.7L Cummins truck with this anodized billet aluminum brake reservoir cap from WCFab. This is a complete cap not a cover. Direct OEM replacement. CNC machined in the USA from billet aluminum. Reuses your OEM diaphragm from existing cap. Available in your choice of clear or black anodized finishes.

• CNC Machined Billet Cap is a direct OEM Replacement not a cover.
• Reuses diaphragm from existing cap.
• Clear Anodized Finish
• Installs in seconds
• Made in USA

This Part Fits:

Clean up the engine bay of your 1998-2024 Dodge Ram 2500/3500 5.9L or 6.7L Cummins truck with this anodized billet aluminum brake reservoir cap from WCFab. This is a complete cap not a cover. Direct OEM replacement. CNC machined in the USA from billet aluminum. Reuses your OEM diaphragm from existing cap. Available in your choice of clear or black anodized finishes.

• CNC Machined Billet Cap is a direct OEM Replacement not a cover.
• Reuses diaphragm from existing cap.
• Clear Anodized Finish
• Installs in seconds
• Made in USA

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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 lube and are designed as an upgrade to the aging OEM fasteners used on the 2001-2016 and newer 6.6L Duramax engines to connect the up pipes to the exhaust manifolds and turbocharger pedestal or the down pipe to turbo exhaust outlet on the LB7. During our performance development work on these engines we have seen numerous occurrences of factory fasteners seizing or breaking in the manifolds, pedestal, or turbine housing. This kit is a simple, cost effective upgrade for peace of mind and ease of serviceability for both stock and modified trucks. - - Torque to 54 FT LBS - - Replaces the following GM part numbers: 11611132

• ARP Bolt kit for 2001-2016 Duramax Up Pipes or LB7 Turbo Down pipe. 6 Washers and Bolts for installing 1 up pipe. Includes ARP Lube.
• Purchase two sets when installing a pair of up pipes.

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WCFab's 2017-2025 L5P Duramax Billet Exhaust Manifolds replace the restrictive factory cast parts with high-strength, TIG-welded high-flow billet steel components. These manifolds are exhaust port gasket matched and internally divided for optimal flow with OEM or ported cylinder heads. Outlet locations allow full compatibility with OEM style up pipes and are paired with WCFab's 2" Stainless High-Flow Up Pipes for optimized performance. Fully compatible with vehicle emissions system, these L5P Manifolds include the necessary sensor port and EGR riser flange. Includes new gaskets, ARP 12PT fasteners, and assembly lube for easy install. Finished in Black Ceramic Coat rated for 2000 deg F.

• 1/8 NPT port (and optional plug) included in driver side manifold for installation of EGT or drive pressure sensor
• Fully TIG Welded, CNC machined billet steel exhaust manifolds
• Finished in Black Ceramic Coat rated for 2000 deg F
• Includes new gaskets for manifolds & up pipes
• Includes ARP 12PT Fasteners and Washers

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Clean up the engine bay of your 1999-2025 GM 1500/2500/3500 truck with this anodized billet aluminum brake reservoir cap from WCFab. This is a complete cap not a cover. Direct OEM replacement. CNC machined in the USA from billet aluminum. Reuses your OEM diaphragm from existing cap. Available in your choice of clear or black anodized finishes.

• CNC Machined Billet Cap is a direct OEM Replacement not a cover.
• Reuses diaphragm from existing cap.
• Clear Anodized Finish
• Installs in seconds
• Made in USA

This Part Fits:

Clean up the engine bay of your 1999-2025 GM 1500/2500/3500 truck with this anodized billet aluminum brake reservoir cap from WCFab. This is a complete cap not a cover. Direct OEM replacement. CNC machined in the USA from billet aluminum. Reuses your OEM diaphragm from existing cap. Available in your choice of clear or black anodized finishes.

• CNC Machined Billet Cap is a direct OEM Replacement not a cover.
• Reuses diaphragm from existing cap.
• Clear Anodized Finish
• Installs in seconds
• Made in USA

This Part Fits:

Clean up the engine bay of your 2006-2024 Dodge Ram 2500/3500 5.9L or 6.7L Cummins truck with this custom powder coated fabricated aluminum brake reservoir cover from WCFab that fits over the unsightly OEM plastic reservoir. Pair with a WCFab billet aluminum brake reservoir cap for the completed look.

• FITMENT NOTE: Some 2007.5-2009 models have a large electrical connector bulkhead next to the master cylinder that will need to be unbolted and relocated/supported by harness on firewall due to interfrence with cover.
• TIG Welded Fabricated Aluminum Cover for Plastic Reservoir
• Utilizes OEM Mounting Points and Hardware
• Installs in minutes with basic hand tools
• Custom Single Stage Powder Coating

This Part Fits:

Clean up the engine bay of your 2001-2019 GM 2500/3500 Duramax truck with this custom powder coated fabricated aluminum brake reservoir cover from WCFab that fits over the unsightly OEM plastic reservoir. Pair with a WCFab billet aluminum brake reservoir cap for the completed look.

• TIG Welded Fabricated Aluminum Cover for Plastic Reservoir
• Utilizes OEM Mounting Points and Hardware
• Installs in minutes with basic hand tools
• Custom Two Stage Powder Coating

This Part Fits:

Clean up the engine bay of your 2001-2019 GM 2500/3500 Duramax truck with this custom powder coated fabricated aluminum brake reservoir cover from WCFab that fits over the unsightly OEM plastic reservoir. Pair with a WCFab billet aluminum brake reservoir cap for the completed look.

• TIG Welded Fabricated Aluminum Cover for Plastic Reservoir
• Utilizes OEM Mounting Points and Hardware
• Installs in minutes with basic hand tools
• Custom Single Stage Powder Coating

This Part Fits:

Clean up the engine bay of your 2001-2019 GM 2500/3500 Duramax truck with this custom powder coated fabricated aluminum brake reservoir cover from WCFab that fits over the unsightly OEM plastic reservoir. Pair with a WCFab billet aluminum brake reservoir cap for the completed look.

• TIG Welded Fabricated Aluminum Cover for Plastic Reservoir
• Utilizes OEM Mounting Points and Hardware
• Installs in minutes with basic hand tools
• Custom Single Stage Powder Coating

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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 prone 8mm OEM fasteners employed on the 2017 and newer 6.6L Duramax engines to connect the up pipes to the exhaust manifolds and turbocharger pedestal. During our performance development work on these engines we have seen common occurrences of the factory fasteners seizing or breaking in the manifolds or pedestal on brand new, low mile vehicles in rust free environments. This kit is a simple, cost effective upgrade for peace of mind and ease of serviceability for both stock and modified trucks.

• 12 Washers and Bolts for installing both up pipes.
• ARP Up Pipe Bolt kit for 2017+ Duramax.
• Includes ARP Assembly Lube

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WCFab 2011-2016 GM LML 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 parts on your diesel for improved engine performance. All new design significantly increases air flow to your turbo producing improved horsepower and torque, quicker throttle response, and cooler intake temperatures by drawing cold air through the inner fender. All aluminum construction features large diameter 4" piping with smooth aerodynamic bends to improve intake air velocity, volume, and provide more aggressive engine and turbo sound during acceleration. High quality hardware, silicone boot, seals, and stainless steel t-bolt clamps ensure optimum durability and ease of installation. Removable air box lid elementallows for easy visual inspection and maintenance of your WCFab filter with included hydrophobic pre-filter cover, to help keep your MAF sensor, turbo, and engine airways contaminant free. Full assembly finished in your choice of WCFab's signature custom powder coat colors for a look as unique as your truck.

• Silicone Boot & Stainless Steel T-Bolt Clamps
• Installs Easily with Basic Hand tools
• Includes Installation Hardware
• Outerwear's Pre-Filter Cover
• No Tuning Required, Bolt On!
• Custom powder coat finish
• Air Box with Lid
• 4" Intake Pipe
• Dry Air Filter
• Made in USA

This Part Fits:

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 fittings from WCFab.

• Kit includes two CNC machined billet aluminum fittings with o-ring seals.
• Black anodized finish
• 5/8" Hose Barb
• Made in USA

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This LBZ 3" Y-Bridge Kit is an upgraded high flow intake kit for the 2006-2007 LBZ Duramax which replaces the OEM upper intake manifold supplying air to the engine intake runners. The OEM Y-bridge for these trucks is a poorly designed, slip-fit style two piece bridge with very little support and is prone to blowing apart under boost on hard working and high performance trucks creating poor drivability and decreased power. This kit is a much improved, high flow, bolt together style two piece 3" bridge which provides a secure sealing surface where the air inlet horn connects to the bridge. 3" high flow upper and lower intercooler pipes feature smooth flowing mandrel bends, CNC machined billet flanges and perfectly compliment the y-bridge to offer a full 3" tract from intercooler pipe slip connection to the engine incorporating the factory grid heater and EGR connection controls. Compatible with OEM lower passenger side intercooler pipe as well as our upgraded 3.5" High Flow Passenger Side Intercooler Pipe Kit WCF100367. Finished in your choice of custom powder colors. This product is compatible with stock trucks requiring no additional modifications, upgrades, or tuning for installation. Pairs best with emissions compliant tuning and drop in turbochargers for optimum performance gains.

• Includes High Quality Silicone Boot, Stainless Steel T-Bolt Clamps, MAP Sensor Seal, New O-Ring Seals for Bridge, Grid Heater & EGR Flanges, New Up Pipe to EGR Gasket and Grid Heater Install Hardware
• Compatible with stock trucks. No other modifications or upgrades necessary!
• Eliminates restrictions and known failure points in OEM design
• WCFab's Signature 3" Two Piece Y-Bridge
• 36% Improvement in Air Flow Over Stock
• 3" Upper Intercooler Crossover Pipe
• No Tuning Required, Bolt On!
• 3" Lower Intercooler Pipe
• Custom Powder Coat Finish
• Made in USA

This Part Fits:

WCFab X Fleece Performance Engineering Thermostat Housing for 1998-2018 5.9L & 6.7L Cummins is a direct replacement upgrade for the unsightly OEM part. This coolant elbow kit features a port with plug to allow you to customize your coolant routings. Comes powder coated in your choice of color to complement other upgrades such as WCFab Upper Coolant Pipes, Intake Kits and Intercooler Piping. Replacement for OEM number 68145495AA.

• 2007.5-2012 Models May Require Additional Hardware (PE-CUMM-EBP-KIT-0712) for Installation
• Features a port with plug to allow you to customize your coolant routings
• Direct Replacement for OEM Thermostat Housing
• Powder coated in your choice of color
• Made in USA

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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 bracket provides a new location to properly attach and display your vehicle tag in states which require a front plate when removing the OEM plastic air dam from your truck's bumper.

• Mounts between WCFAB Lower Valance Filler Panel and the bumper using the same OEM Hardware as the Filler Panel
• License Plate Mounting Hardware included
• 16G Stainless Steel Construction
• Made in USA

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Replace the restrictive crushed factory down pipe on your 2017-2025 L5P Duramax with this 3.5" Down Pipe for improved exhaust flow. Connects to the DOC outlet flange behind the OEM turbo and mates with OEM exhaust system front pipe with the 4 bolt style flange connection. Black Ceramic Coated and Heat wrapped. Down Pipe includes bungs for sensors and NO tuning required to use this down pipe. WCFab piping kits and emissions compliant tuning recommended for optimum performance gains.

• High Temp Black Ceramic Coat Finish
• Catalyst Back - Emissions Compliant
• 3.5" High Flow Down Pipe
• Heat Wrap Pre-installed
• NO TUNING REQUIRED!
• Made in USA

This Part Fits:

Replace the restrictive crushed factory down pipe with this full 3" down pipe. For use with factory turbo or factory style drop in turbo. 2015.5 and newer LML have a 3 bolt flange exhaust system, this down pipe will only work if you use a 2011-2014 style exhaust system with v-band connection. Or you can use our 3 Bolt Flange Stainless Down pipe PN: WCF100705

• Black Ceramic Coating
• Heat Wrap and clamps
• 3" Down Pipe

This Part Fits:

Replace the restrictive crushed factory down pipe with this full 3" down pipe. High Temp Ceramic Coated for protection. For use with factory turbo or factory style drop in turbo.

• Black Ceramic Coating
• Heat Wrap & Clamps
• 3" Down Pipe

This Part Fits: