Fits 2017-2019 Chevrolet Silverado and GMC Sierra 2500 HD / 3500 HD models equipped with the 6.6L L5P Duramax diesel engine.

The WCFab 4" Intake Kit is engineered to replace the restrictive plastic factory intake plumbing and air box with a high-flow, fabricated aluminum system. This kit features a 4" diameter intake pipe with smooth aerodynamic bends to increase air velocity and volume. By drawing cold air from both the hood's functional ram air duct and the inner fender, this system reduces intake temperatures and improves throttle response while providing a more pronounced turbo and engine sound.

Constructed from durable aluminum, the air box enclosure includes a removable lid for easy maintenance of the high-flow dry filter. For added protection, the kit includes an Outerwear's hydrophobic pre-filter cover to keep moisture and large debris away from the MAF sensor and turbo compressor. This system is a true bolt-on upgrade that requires no engine tuning and maintains a clean engine bay aesthetic by relocating the ram air duct seal to the bottom of the hood.

• Manufacturer Part Number: WCF100344-GW
• 4" fabricated aluminum intake pipe for maximum flow
• Aluminum air box enclosure with removable lid
• High-flow dry air filter with Outerwear's hydrophobic pre-filter cover
• Includes high-quality silicone boot and stainless steel T-bolt clamps
• Finished in a durable Gloss White single-stage powder coat
• Direct bolt-on installation; no tuning required

Fits 2017-2019 Chevrolet Silverado and GMC Sierra 2500 HD / 3500 HD (6.6L L5P Duramax).

The Wehrli Custom Fabrication (WCFab) 4-inch Intake Kit replaces the restrictive plastic factory components on your diesel with high-flow, fabricated aluminum parts. This kit significantly increases air volume to the turbocharger, improving throttle response and maintaining cooler intake temperatures by drawing air from both the functional hood ram air duct and the inner fender. The large 4-inch piping features smooth aerodynamic bends to maximize air velocity while providing a more aggressive engine and turbo sound during acceleration.

This kit is a true bolt-on solution that requires no additional tuning or modifications. It includes a removable air box lid for easy maintenance and an Outerwear’s hydrophobic pre-filter to protect your MAF sensor and engine airways from contaminants. The entire assembly is finished in a durable Gloss Black powder coat (MPN: WCF100344-GB) for a professional look under the hood.

• 4-inch diameter aluminum intake pipe
• Fabricated aluminum air box enclosure with lid
• High-flow dry air filter
• Hydrophobic Outerwear's pre-filter cover
• Heavy-duty silicone boot and stainless steel T-bolt clamps
• Custom seal for connection to functional hood ram air port
• Direct bolt-on installation with no tuning required

Fits 1998-2007 Dodge Ram 2500 and 3500 (5.9L).

The Wehrli Custom Fab (WCFab) Billet Intake Spacer Kit is engineered to maximize airflow into the cylinder head by replacing the restrictive factory grid heater assembly. CNC machined from high-grade billet aluminum, this spacer optimizes the intake tract to improve turbo spool-up and overall engine efficiency. Unlike many alternatives that rely on single-use lead gaskets, this kit features integrated, reusable O-ring seals on both sides for a clean, leak-free installation and easier maintenance.

This kit is a direct bolt-on component and requires no aftermarket tuning. It is designed to pair perfectly with WCFab 3.5-inch High Flow Intake Horns and intercooler pipes, though it remains fully compatible with OEM and other aftermarket intake horns. The design also allows for a straightforward swap back to the factory grid heater assembly for users operating in colder climates who require pre-heating for winter starts.

• CNC machined from billet aluminum for precision fitment
• Durable black anodized finish with engraved WCFab logo
• Integrated reusable O-ring seals replace frustrating lead gaskets
• Direct bolt-on installation with no tuning required
• Compatible with OEM and aftermarket intake horns
• Manufacturer Part Number: WCF100338-BLKANO

Fits 2011-2016 Chevrolet Silverado and GMC Sierra 2500HD/3500HD (LML-6.6L Duramax) trucks.

The WCFab 3-inch High Flow Passenger Side Upper Crossover Intercooler Pipe is designed to eliminate the restrictive factory plastic resonator and improve intake efficiency. Constructed from 14g aluminum, this 3-inch pipe provides an 18% gain in airflow over the stock component, resulting in faster turbo spool-up and improved engine responsiveness. By deleting the resonator, this kit also provides a more aggressive turbo and engine sound while cleaning up the appearance of the engine bay.

This kit is a direct bolt-on replacement for GM Part Number 12642321 and is compatible with the factory Y-bridge, throttle valve, and grid heater. It requires no additional tuning or modifications for installation, making it an ideal upgrade for both stock and modified trucks. The pipe is finished in a durable Gloss Black powder coat for long-lasting corrosion resistance.

• 3-inch high-flow 14g aluminum construction
• 18% increase in airflow over OEM piping
• Billet Turbo Resonator Plate included for OEM intake horn
• Maintains compatibility with factory Y-bridge, throttle valve, and grid heater
• Direct bolt-on installation with basic hand tools; no tuning required
• Durable Gloss Black powder coat finish
• Replaces GM Part Number: 12642321
• Made in the USA
• MPN: WCF100328-GB

Fits 2015-2019 Chevrolet Silverado 2500 HD and 3500 HD (6.6L).

The WCFab Bumper Grille provides a significant upgrade in front-end protection for your Duramax-powered Silverado. Specifically engineered to shield the transmission cooler from flying road debris without compromising critical airflow, this insert serves as a functional and aesthetic finishing touch for your truck's heavy-duty cooling stack.

Constructed from heavy gauge stainless steel, this grille is finished in a durable Fine Texture Black powder coat to withstand harsh road conditions. Installation is straightforward and can be completed quickly with basic hand tools, mounting directly into the factory bumper opening.

• Protects transmission cooler from impact damage and debris
• Optimized mesh design maintains vital cooling airflow
• Heavy gauge stainless steel construction for long-term durability
• Durable Fine Texture Black finish matches OEM trim
• Simple installation with basic hand tools
• Manufacturer Part Number: WCF100290-FTB

The Wehrli Custom Fabrication High Mount 2nd Gen Turbo Swap Oil Line Kit (WCF100279) provides a professional-grade plumbing solution for Cummins owners converting to a high-mount turbocharger configuration. This kit replaces standard or improvised lines with high-performance, Teflon-lined stainless steel braided hoses designed to withstand the extreme heat and pressure of a turbocharged diesel environment.

This kit includes a #6 oil feed line and a #10 oil drain line to ensure proper lubrication and drainage for your mid-frame turbocharger. To resolve the common issue of leaking or torn paper gaskets, the turbo drain flange utilizes a reusable O-ring seal. Furthermore, the -10AN male fitting is extended 4 inches from the turbo drain flange, significantly improving tool access and ease of connection for the drain line in tight high-mount setups.

• Compatible with T3, T4, and T6 Midframe Turbochargers using 2 in. on center bolt spacing
• Teflon-lined stainless steel braided #6 oil feed and #10 oil drain lines
• Reusable O-ring seal on drain flange eliminates traditional paper gasket failures
• 4-inch extension on -10AN male fitting for simplified drain line installation
• High-strength hardware for reliable turbocharger plumbing
• Manufacturer Part Number: WCF100279

Fits select 2011-2016 Chevrolet Silverado and GMC Sierra 2500 HD / 3500 HD Crew Cab models (6.6L Duramax).

Protect your fuel system investment with the WCFab FASS Fuel System Relocation Bracket. This precision laser-cut mounting solution moves the lift pump from its standard position to a more protected location underneath the truck, tucked inside the driver-side frame rail just ahead of the fuel tank. By shifting the assembly inward, you effectively move the lift pump and filters out of the direct debris path of the rear tires, reducing the risk of impact damage or contamination.

Designed specifically for Crew Cab configurations, this bracket provides a clean, stealthy installation when paired with FASS short-style filters. It also significantly simplifies fuel line plumbing for owners running a sump-style pickup on the fuel tank. The bracket features a durable semi-gloss black powder coat finish over an epoxy primer base for maximum corrosion resistance against road salt and moisture.

• Relocates FASS lift pump to the interior of the driver-side frame rail
• Precision laser-cut steel construction
• Direct bolt-on installation using pre-existing factory frame holes
• Finished in Semi-Gloss Black Powder Coat with Epoxy Primer base
• Optimized for Crew Cab short-bed and long-bed configurations
• Made in the USA
• Manufacturer Part Number: WCF100269

Fits 2020-2025 Chevrolet Silverado and GMC Sierra 2500 HD/3500 HD (6.6L L5P Duramax).

Replace the failure-prone factory plastic reservoir with a durable, high-performance solution. This Wehrli Custom Fabrication (WCFab) OEM Placement Coolant Tank Kit features a heavy-duty fabricated aluminum construction designed to mount directly in the factory location. The Gloss White powder-coated finish provides a clean, custom look in the engine bay while the integrated sight glass allows for quick, reliable coolant level checks at a glance.

This kit is designed for a straightforward installation on stock trucks using basic hand tools and factory mounting points. It includes a CNC-machined billet aluminum cap with a black anodized finish, a new low coolant level sensor to maintain system monitoring, and all necessary mounting hardware and overflow hoses.

• Fabricated aluminum coolant tank with integrated sight glass
• Gloss White powder coat finish
• Black anodized billet aluminum cap
• Includes low coolant level sensor and overflow hose
• Uses factory mounting points; no modifications required
• Replaces GM Part Numbers: 23394082, 84622147
• Manufacturer Part Number: WCF100268-GW

Fits 2020-2025 Chevrolet Silverado and GMC Sierra 2500HD/3500HD (6.6L L5P Duramax).

Replace the failure-prone factory plastic reservoir with the Wehrli Custom Fabrication aluminum coolant tank kit. This fabricated aluminum tank is designed as a direct bolt-on replacement, mounting securely to the factory locations without requiring modifications. The Gloss Black powder-coated finish provides a durable, professional appearance while the integrated sight glass allows for quick and accurate fluid level checks at a glance.

This comprehensive kit features a black anodized CNC-machined billet aluminum cap and includes a new low coolant sensor to ensure full system functionality. It is designed for easy installation using basic hand tools, providing a significant upgrade in both engine bay aesthetics and long-term durability for heavy-duty applications.

• Fabricated aluminum construction with Gloss Black powder coat
• Integrated coolant level sight glass
• CNC-machined billet aluminum anodized cap
• Includes low coolant level sensor and overflow hose
• Mounts to OEM locations using included hardware
• Replaces GM Part Numbers: 23394082, 84622147
• Manufacturer Part Number: WCF100268-GB (Supersedes WCF100679)

Fits 2001-2010 Chevrolet Silverado and GMC Sierra 2500 HD / 3500 HD Crew Cab models equipped with the 6.6L Duramax (LB7, LLY, LBZ, LMM).

This WCFab (Wehrli Custom Fab) precision laser-cut bracket is designed to relocate your FASS fuel system to a more protected location on the inside of the driver-side frame rail. By moving the lift pump out of the direct debris path of the rear tires, you protect your filtration system from road spray and impact damage. This relocation provides a clean, stealthy installation when paired with FASS short-style filters and significantly simplifies fuel line plumbing for trucks running a sump-style fuel tank pickup.

• Direct bolt-on installation using pre-existing factory frame holes
• Precision laser-cut steel construction
• Semi-Gloss Black powder coat finish with epoxy primer base for superior corrosion resistance
• Includes high-strength Grade 8 mounting hardware
• Engineered for Crew Cab configurations only
• Made in the USA
• Manufacturer Part Number: WCF100265

Fits 2004-2007 Dodge Ram 2500 and 3500 (5.9L Cummins).

The Wehrli Custom Fab (WCFab) 4" Turbo Down Pipe is engineered specifically for trucks equipped with a 2nd Gen style exhaust manifold and a high-mount S400 turbocharger. This bolt-on solution simplifies the installation of an aftermarket S400 by mating the turbo directly to your factory exhaust system. The upper flange features a 4.6" diameter designed for standard S400 flat exhaust housings, while the lower flange connects to the OEM v-band flange on the exhaust pipe, eliminating the need for cutting or custom fabrication.

• Direct Fit: Designed to work with the factory exhaust v-band flange (reuses OEM v-band clamp).
• High-Heat Protection: Finished in a black high-temperature ceramic coating and includes additional heat wrap with clamps.
• S400 Compatibility: Includes a 4" V-band clamp specifically for the S400 turbo connection (4.6" upper flange).
• Premium Construction: Mandrel-bent 4" tubing, Made in the USA.
• Manufacturer Part Number: WCF100262

Note: Also compatible with 2003-2004 models that have updated their exhaust system front pipe to the 2004.5-2007 style.

Fits select 1998-2024 Dodge Ram and Ram 2500/3500 trucks (5.9L / 6.7L Cummins).

Upgrade the durability and aesthetics of your Cummins engine bay with this Wehrli Custom Fabrication (WCFab) Brake Master Cylinder Cap. Unlike basic cosmetic covers that simply sit atop the factory piece, this is a complete, standalone replacement cap. Precision CNC machined in the USA from billet aluminum, it provides a rugged and high-end alternative to the stock plastic component.

The cap features a durable black anodized finish for superior corrosion resistance and a clean, professional look. Designed for a seamless install, this unit reuses your existing OEM rubber diaphragm to maintain a proper seal on the brake fluid reservoir.

• Manufacturer Part Number: WCF100258
• Material: CNC Machined Billet Aluminum
• Finish: Black Anodized
• Fitment Type: Direct OEM Replacement (Full Cap, not a cover)
• Requirement: Reuses factory rubber diaphragm
• Country of Origin: USA

Fits select 1998-2024 Dodge and Ram 2500/3500 trucks (5.9L / 6.7L Cummins).

Upgrade the under-hood aesthetics of your Cummins-powered truck with this Wehrli Custom Fabrication (WCFab) brake master cylinder cap. Unlike decorative covers that simply slide over the factory plastic, this is a complete, direct OEM replacement cap CNC-machined in the USA from high-quality billet aluminum. It provides a more durable and premium-feeling alternative to the original equipment, threading directly onto your factory reservoir for a precise fit.

• Direct OEM replacement (not a decorative cover)
• CNC-machined from billet aluminum for superior strength and finish
• Clear anodized coating provides a clean look and protection against corrosion
• Simple installation: reuses your existing OEM diaphragm for a factory seal
• Installs in seconds on factory brake master cylinders
• Manufactured in the USA
• Manufacturer Part Number: WCF100257

Fits select 2001-2016 Chevrolet Silverado and GMC Sierra 2500 HD/3500, and Chevrolet Express/GMC Savana 2500/3500 (6.6L).

This WCFab ARP Bolt Kit (WCF100240) provides a necessary upgrade for the aging or seized OEM hardware found on 2001-2016 Duramax engines. During performance development and maintenance, factory fasteners often seize or break in the exhaust manifolds, turbocharger pedestal, or turbine housing. These high-strength 12-point ARP fasteners offer improved serviceability and peace of mind for both stock and high-performance builds.

This kit includes six fasteners and washers, enough to secure one up pipe to the exhaust manifold and turbo pedestal, or the turbo down pipe to the exhaust outlet on LB7 models. Note: Two kits are required to replace hardware for a complete pair of up pipes.

• 6 high-strength 12-point ARP fasteners
• 6 matched washers
• Includes ARP assembly lube
• Torque Spec: 54 ft-lbs
• Replaces GM Part Number: 11611132
• Manufacturer Part Number: WCF100240

Fits 2017-2025 Chevrolet Silverado and GMC Sierra 2500/3500 HD (6.6L L5P Duramax).

The WCFab Billet Exhaust Manifold and Up Pipe Kit replaces the restrictive factory cast iron components with high-flow, CNC-machined billet steel manifolds and 2-inch stainless steel up pipes. Designed to eliminate flow bottlenecks, these manifolds are exhaust port gasket matched and feature an internally divided design to optimize exhaust gas velocity and pulse tuning for both OEM and ported cylinder heads. The manifolds maintain full compatibility with the factory emissions system by including the necessary EGR riser flange and sensor ports, including a 1/8 NPT port on the driver-side manifold for EGT or drive pressure monitoring.

Constructed for extreme heat cycles, the manifolds are fully TIG-welded and finished in a high-temp black ceramic coating rated for up to 2000°F. The kit includes premium ARP 12-point fasteners and all required gaskets for a complete, leak-free installation.

• CNC-machined billet steel exhaust manifolds for maximum strength
• 2-inch high-flow stainless steel up pipes
• High-temp Black Ceramic Coat finish (rated to 2000°F)
• Gasket matched and internally divided for optimized flow
• Integrated 1/8 NPT port with plug for EGT sensors
• Retains factory emissions equipment and EGR functionality
• Includes ARP 12PT fasteners, washers, gaskets, and assembly lube
• Manufacturer Part Number: WCF100226

Fits select 1999-2025 Chevrolet Silverado and GMC Sierra 1500, 2500, and 3500 trucks.

Upgrade your truck's engine bay with the Wehrli Custom Fab (WCFab) billet aluminum brake reservoir cap. This is a complete, CNC-machined replacement part, not a decorative cover. It replaces the factory plastic unit to provide a custom, high-end look while maintaining the integrity of your braking system. Precision-machined in the USA, this cap features a durable black anodized finish that resists corrosion and engine heat.

• Direct OEM replacement component (not a slip-on cover)
• CNC machined from high-quality billet aluminum
• Simple installation that takes only seconds
• Reuses the factory rubber diaphragm from your existing cap
• Proudly made in the USA

• Brand: Wehrli Custom Fab (WCFab)
• Part Number: WCF100216
• Material: Billet Aluminum
• Finish: Black Anodized
• Fitment: 1999-2025 GM 1500/2500/3500 Trucks

Fits select 1999-2025 Chevrolet Silverado and GMC Sierra 1500, 2500, and 3500 trucks across multiple trims and submodels.

Upgrade your engine bay with this premium CNC-machined brake master cylinder cap from WCFab. Unlike thin aesthetic covers, this is a full-replacement cap designed to provide a high-end finish and lasting durability. Each cap is precision-machined in the USA from billet aluminum and finished in a clear anodized coating for superior corrosion resistance and a clean look.

Installation is straightforward and takes only seconds. This unit serves as a direct OEM replacement and is designed to reuse your vehicle's factory diaphragm from the original cap for a perfect seal.

• Manufacturer Part Number: WCF100215
• Material: CNC Machined Billet Aluminum
• Finish: Clear Anodized
• Type: Full Replacement Cap (Not a cover)
• Country of Origin: Made in USA
• Fitment: Reuses existing OEM diaphragm

Fits select 2006-2024 Dodge Ram 2500 and 3500 trucks (5.9L / 6.7L Cummins).

Improve the aesthetic of your engine bay with the Wehrli Custom Fabrication (WCFab) Brake Master Cylinder Reservoir Cover. This TIG-welded, fabricated aluminum component is designed to fit directly over the factory plastic reservoir, replacing the unsightly OEM look with a durable, custom-finished piece. Finished in a single-stage Bengal Red powder coat, it provides long-lasting resistance against the heat and chemicals found under the hood.

• Manufactured from high-grade fabricated aluminum for precise fitment
• TIG-welded construction for maximum durability and clean weld beads
• Utilizes factory mounting points and original hardware for a secure installation
• Installs in minutes using only basic hand tools
• Durable single-stage Bengal Red powder coating
• Manufacturer Part Number: WCF100209-BR

Fitment Note: On select 2007.5-2009 models, the electrical connector bulkhead located near the master cylinder may interfere with the cover. This bulkhead must be unbolted and relocated or supported by the harness on the firewall to ensure proper clearance.

Fits select 2001-2019 Chevrolet Silverado and GMC Sierra 2500 HD / 3500 HD models equipped with the LB7, LLY, LBZ, LMM, LML, or L5P Duramax diesel engines.

Improve the presentation of your GM heavy-duty engine bay with this Wehrli Custom Fabrication (WCFab) brake reservoir cover. This TIG-welded aluminum component is designed to fit directly over the factory plastic reservoir, concealing the unsightly OEM part. Finished in WCFab Red two-stage powder coating, it provides a durable and vibrant accent that complements other WCFab engine components.

• Fabricated aluminum construction with precision TIG welding
• Custom WCFab Red two-stage powder coating for superior finish and durability
• Utilizes OEM mounting points and factory hardware
• Simple installation process using basic hand tools
• Replaces the visual appearance of the factory plastic brake reservoir
• Manufacturer Part Number: WCF100205-RED

Fits select 2001-2019 Chevrolet Silverado and GMC Sierra 2500 HD and 3500 HD trucks (6.6L Duramax LB7/LLY/LBZ/LMM/LML/L5P).

Improve the appearance of your engine bay by concealing the unsightly factory plastic brake fluid reservoir with this Wehrli Custom Fabrication (WCFab) cover. This fabricated aluminum piece provides a clean, high-end look while retaining the reliability of the factory master cylinder. For a fully coordinated engine bay, this cover can be paired with a WCFab billet aluminum brake reservoir cap.

• TIG-welded fabricated aluminum construction for precise fitment.
• Custom single-stage Gloss White powder-coated finish.
• Direct-fit design slides over the OEM plastic reservoir.
• Utilizes factory mounting points and hardware for a secure installation.
• Simple bolt-on installation takes only minutes with basic hand tools.
• Manufacturer Part Number: WCF100205-GW

Fits select 2001-2019 Chevrolet Silverado and GMC Sierra 2500 HD and 3500 HD trucks equipped with the Duramax diesel engine (LB7, LLY, LBZ, LMM, LML, and L5P).

Clean up the engine bay of your heavy-duty GM truck with the Wehrli Custom Fabrication (WCFab) brake master cylinder cover. This TIG-welded, fabricated aluminum cover is designed to slide directly over the factory plastic reservoir, hiding the unsightly OEM component for a streamlined, professional look. Each cover is finished in a durable gloss black single-stage powder coating to withstand engine heat and maintain its finish over time.

• Fabricated aluminum construction with precision TIG welds
• Single-stage gloss black powder coat finish for long-term durability
• Direct-fit design utilizes existing OEM mounting points and hardware
• Simple installation takes only minutes with basic hand tools
• Compatible with WCFab billet aluminum brake reservoir caps (sold separately)
• Manufacturer Part Number: WCF100205-GB

Fits select 2017-2025 Chevrolet Silverado and GMC Sierra 2500 HD / 3500 HD trucks (6.6L).

The Wehrli Custom Fabrication (WCFab) L5P Up Pipe Bolt Kit is a high-strength hardware upgrade designed for the 6.6L Duramax engine. This kit replaces the undersized and failure-prone 8mm factory fasteners used to connect the up pipes to the exhaust manifolds and turbocharger pedestal. In professional shop environments, factory fasteners are frequently found to be seized or broken even on low-mileage vehicles. This kit solves that vulnerability by utilizing premium ARP hardware.

Constructed from high-strength materials, these fasteners provide superior clamping force and improved serviceability for both stock and modified trucks. This kit includes all necessary hardware to secure both up pipes, ensuring a leak-free exhaust seal and preventing future maintenance headaches.

• Replaces failure-prone 8mm OEM fasteners
• 12 High-strength ARP bolts
• 12 Matched ARP washers
• Includes one pack of ARP assembly lube
• Prevents hardware breakage in exhaust manifolds and turbo pedestal
• Manufacturer Part Number: WCF100199

Fits select 2011-2016 Chevrolet Silverado and GMC Sierra 2500 HD and 3500 HD models (6.6L Duramax LML).

The Wehrli Custom Fabrication (WCFab) 4" Intake Kit replaces the restrictive factory plastic intake components with high-flow, fabricated aluminum for improved engine performance. This system features large-diameter 4" piping with smooth aerodynamic bends to increase air velocity and volume, drawing cooler air through the inner fender for reduced intake temperatures and quicker throttle response. The enclosed air box includes a removable lid for easy maintenance and provides a more aggressive turbo sound under acceleration.

Built for durability and ease of installation, the kit includes a high-flow dry air filter and an Outerwear’s hydrophobic pre-filter cover to keep your MAF sensor and turbo clear of contaminants. The entire assembly is finished in a Gloss Black powder coat and is a direct bolt-on upgrade that requires no aftermarket tuning.

• Manufacturer Part Number: WCF100194-GB
• Construction: 4" fabricated aluminum piping
• Filter: High-flow dry filter with hydrophobic pre-filter cover
• Hardware: Silicone boot and stainless steel T-bolt clamps included
• Finish: Gloss Black custom powder coat
• Origin: Made in USA

Fits 2004-2010 Chevrolet Silverado and GMC Sierra 2500 HD/3500/3500 HD (6.6L Duramax LLY/LBZ/LMM).

The Wehrli Custom Fabrication (WCFab) Crankcase Vent (PCV) Fitting Kit is a robust upgrade designed to replace the fragile factory plastic fittings found on 2004.5-2010 Duramax engines. The original equipment (OE) plastic components are notorious for becoming brittle over time due to heat cycles, often cracking or snapping during maintenance or heavy use. These CNC-machined billet aluminum replacements provide a permanent, heavy-duty solution.

Each kit includes two fittings finished in a sleek black anodized coating for superior corrosion resistance and a clean engine bay aesthetic. Featuring a 5/8" hose barb and high-quality O-ring seals, these fittings ensure a leak-free connection for your crankcase ventilation system.

• CNC machined from high-grade billet aluminum
• Durable black anodized finish
• Precision 5/8" hose barb for secure ventilation line connection
• Includes integrated O-ring seals for a leak-free fit
• Direct replacement for fragile plastic OEM fittings
• Made in the USA
• Manufacturer Part Number: WCF100189