-3%
Sold out
Click to zoom in
Wehrli 01-04 Chevrolet 6.6L LB7 Duramax Fuel Pressure Relief Valve Delete Kit is the exact fuel components misc identified by manufacturer part number WCF100023. This listing was checked against WCFab's current manufacturer catalog under the catalog product name 2001-2004 LB7 Duramax Fuel Pressure Relief Valve Block Off Kit. Confirm the complete part number, supported vehicle or dimensions, engine and emissions requirements, mounting position, finish, included components, and installation needs before ordering.
Key Features
- The WCF100023 is a fuel pressure relief valve delete kit from Wehrli Custom Fabrication that removes the factory relief valve on the LB7 intake runner to provide clearance for larger aftermarket Y-bridges.
- No, this is a bolt-on kit that uses the factory mounting location and included hose clamps and fittings for a clean installation.
- Clear The Way For A Bigger Y-Bridge Without Fighting Factory Plumbing Upgrading to a larger Y-bridge on your LB7 is a great power move until you realize the factory fuel pressure relief valve sits right where your new intake needs clearance.
- Their fuel system components and Y-bridge clearance kits are designed to solve the real fitment problems diesel owners run into when upgrading intake and turbo hardware.
- The WCF100023 clears clearance issues for most larger aftermarket Y-bridges, but always check your specific Y-bridge manufacturer's fitment notes since bridge designs vary.
Fitment
Supported year-make-model applications include 2001-2004 Chevrolet Silverado 2500 HD, 2001-2004 Chevrolet Silverado 3500, 2001-2004 GMC Sierra 2500 HD, 2001-2004 GMC Sierra 3500. Engine, trim, cab, bed, chassis, drivetrain, and emissions details remain application qualifiers and are not model values.
Specifications
| Brand | Wehrli |
|---|---|
| Manufacturer Part Number | WCF100023 |
| Manufacturer Catalog Product | 2001-2004 LB7 Duramax Fuel Pressure Relief Valve Block Off Kit |
| Product Type | Fuel Components Misc |
| Fitment Type | Vehicle Specific |
| Condition | New |
What's Included
One new Wehrli fuel components misc identified by manufacturer part number WCF100023, with only the components shown and expressly listed for this exact item.
About Wehrli
Wehrli Custom Fabrication develops high-performance diesel-truck intake, cooling, exhaust, suspension, and engine-bay components. Exact part-number and application verification are essential because configurations can differ across engines, cab and bed combinations, and model years.
Related Wehrli Products
- Shop all Wehrli products
- 20-24 Duramax L5P Stage 3 High Flow Bundle Kit - Gloss White
- 2011-2016 LML Duramax Passenger Side Upper Crossover Intercooler Pipe Kit Gloss Black
- WCF Intercooler Pipes
Frequently Asked Questions
Will Wehrli WCF100023 fit my vehicle?
Use the listed year and model where provided, then confirm the engine, cab, bed, chassis, drivetrain, emissions configuration, factory equipment, dimensions, and exact manufacturer part number.
Which specifications must I confirm?
Confirm dimensions, material, finish, mounting position, connection type, included components, related vehicle equipment, and the complete manufacturer part number.
What should be checked before installation?
Verify the complete parts list, mounting points, hose and wiring routes, clearances, fastener torque, fluid or air connections, and the current manufacturer service procedure.
Installation
Install according to the current Wehrli instructions and the vehicle service information. Confirm clearances, routing, fastener torque, fluid or air sealing, sensor connections, alignment where applicable, and safe operation before driving.
Engine
Shop automotive engine parts, cooling-system components, oil-system upgrades, ignition parts, pulleys, sensors, gaskets, fuel components, and engine-bay accessories at Black Ops Auto Works. This collection covers vehicle-specific replacement parts, performance upgrades, supporting hardware, and universal components for street cars, trucks, SUVs, Jeeps, diesel vehicles, off-road builds, and motorsport applications. Engine Parts and Performance Components The Engine collection brings together components used throughout the engine, lubrication system, cooling system, ignition system, fuel system, crankcase ventilation, accessory drive, and engine compartment. Available products range from replacement sensors and gaskets to rotating-assembly parts, performance cooling systems, supercharger pulleys, catch cans, cylinder heads, camshafts, intake manifolds, and engine-bay dress-up components. Engine compatibility cannot be determined from vehicle model alone. Confirm the exact year, make, ...
View Engine Products
Fuel Components Misc
Fuel Components Misc parts and accessories are stocked at Black Ops Auto Works for street builds, track cars, trucks, and custom fabrication. Shop fuel filters, vent kits, pulse dampers, hanger plates, bulkhead adapters, hardline adapters, check valves, pressure sensors, fuel pickups, mounting brackets, fuel cell hardware, rail accessories with application details for the systems and platforms that need them. Every product is filterable by year, make, model, trim, engine, and drivetrain so the correct part ships the first time. Black Ops Auto Works carries 125 Fuel Components Misc SKUs across fuel delivery hardware, plumbing adapters, ventilation pieces, pump support parts, and pressure control components. What This Fuel Components Misc Collection Covers This collection brings together the small but essential pieces that complete an EFI, diesel, or custom fuel system. It includes fuel pulse dampers, charcoal canisters, pickup hardware, pump mounts, hardline adapters, fuel filter...
View Fuel Components Misc Products
Fuel Delivery
Shop performance fuel delivery parts for gasoline, diesel, EFI, carbureted, boosted, and flex-fuel builds at Black Ops Auto Works. This collection brings together fuel pumps, pump modules, rails, pressure regulators, filters, tanks, surge tanks, carburetors, flex-fuel kits, sensors, injection-pump components, and installation hardware for street, towing, off-road, and motorsport applications. Choose vehicle-specific and universal components from trusted manufacturers including Aeromotive, DeatschWerks, Radium Engineering, Walbro, Fleece Performance, Fuelab, Injector Dynamics, COBB, Turbosmart, AEM, Titan Fuel Tanks, Edelbrock, and more. Always verify the exact year, make, model, engine, fuel type, pressure requirements, and connection sizes before ordering. Fuel Pumps and Pump Modules Replace a weak factory pump or build a higher-capacity fuel system with in-tank pumps, external pumps, brushless pumps, complete modules, hangers, controllers, and fitment kits. Pump selection should...
View Fuel Delivery Products
Wehrli
Shop Wehrli Fabrication diesel performance parts at Black Ops Auto Works. Find Duramax and Cummins intake systems, Y-bridges, turbo pedestals, coolant tanks, coolant pipes, thermostat housings, intercooler boot adapters, fuel system hardware, radiator covers, turbo oil lines, and engine bay components for diesel truck builds. Wehrli Duramax Performance Parts Wehrli products support selected Chevrolet and GMC Duramax applications, including LB7, LBZ, LMM, LML, L5P, and L5D platforms. Find high-flow intakes, intake horns, Y-bridge kits, turbo pedestal kits, coolant tanks, coolant pipes, thermostat housings, and charge air components. Wehrli Cummins Parts Shop Wehrli cooling, turbo, intake, and engine bay components for selected 5.9L and 6.7L Cummins engines. Available products include coolant tanks, thermostat housings, radiator covers, fittings, turbo oil line kits, engine covers, brake reservoir covers, and related hardware. Wehrli Power Stroke Components This collection includes se...
View Wehrli Products