Best SellersEngine ComponentsEngine CoversIn Stock Products
The WCFab Splash Shield Kit for 2011-2019 Chevrolet Silverado 2500/3500 HD and GMC Sierra/Denali 2500/3500 HD trucks replaces the easily damaged factory plastic part...
Best SellersCoolant ReservoirsCoolingIn Stock Products
2013-2018 6.7L Cummins Fabricated Aluminum Coolant Tank Kit, mounts in OEM coolant tank location. All New Design. Dress up your engine bay by replacing...
Best SellersBumper AccessoriesBumpers, Grilles & GuardsIn Stock Products
2015-2019 Chevrolet Silverado 2500 / 3500 HD Bumper Grilles from WCFab are constructed from heavy gauge stainless steel and designed to maintain airflow to...
Best SellersBumper AccessoriesBumpers, Grilles & GuardsIn Stock Products
2015-2019 Silverado and Sierra 2500HD / 3500HD CNC machined billet aluminum spacer kits from WCFab move the front bumper forward, keeping it off the...
Best SellersBumper AccessoriesBumpers, Grilles & GuardsIn Stock Products
2015-2019 Silverado and Sierra 2500HD / 3500HD CNC machined billet aluminum spacer kits from WCFab move the front bumper forward, keeping it off the...
Best SellersForced InductionIn Stock ProductsIntercooler Pipe Kits
The WCFab 3.5" High Flow Passenger (Cold) Side Intercooler Pipe for 2017-2019 L5P 6.6L Duramax equipped Chevrolet Silverado or GMC Sierra 2500 / 3500...
Best SellersForced InductionIn Stock ProductsIntercooler Pipe Kits
The WCFab 3.5" High Flow Passenger (Cold) Side Intercooler Pipe for 2017-2019 L5P 6.6L Duramax equipped Chevrolet Silverado or GMC Sierra 2500 / 3500...
Best SellersForced InductionIn Stock ProductsIntercooler Pipe Kits
The WCFab 3.5" High Flow Passenger (Cold) Side Intercooler Pipe for 2017-2019 L5P 6.6L Duramax equipped Chevrolet Silverado or GMC Sierra 2500 / 3500...
Best SellersCoolingIn Stock ProductsRadiator Hoses
Aluminum Upper Coolant Pipe for 2017-2019 L5P Duramax replaces the OEM rubber upper coolant hose and comes powder coated color of choice! Replaces the...
Best SellersCoolingIn Stock ProductsRadiator Hoses
Aluminum Upper Coolant Pipe for 2017-2019 L5P Duramax replaces the OEM rubber upper coolant hose and comes powder coated color of choice! Replaces the...
Air Intake SystemsBest SellersCold Air IntakesIn Stock Products
Stage 1 upgrade for the 2017-2019 L5P Duramax improves airflow between the turbo and engine for improved efficiency, throttle response, and turbo spool up....
Best SellersFuel DeliveryFuel FiltersIn Stock Products
Increase fuel filter capacity and amount of time between filter changes on your 2017-2024 L5P Duramax by upgrading from a stock cartridge style filter...
As a direct replacement for the failure prone OEM thermostat, the Transmission Cooler Thermostat Bypass Plug can drop fluid temperature from 15-50 degrees F...
Best SellersFabricationHeat ShieldsIn Stock Products
For use on tuned 2017-2023 L5P Duramax competition trucks equipped with VGT Style Turbochargers.This Part Fits: Year Make Model Submodel 2021-2023 Chevrolet Silverado 2500...
Best SellersExhaust, Mufflers & TipsHeaders & ManifoldsIn Stock Products
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...