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  • (X) Model: Silverado 3500HD

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Items 1-60 of 61
L5P 3 1/2" ,Down Pipe ,2017-2025, 2500HD, 3500HD, SILVERADO ,SIERRA, L5P
Description: For Off Road Competition Use Only. -3 1/2" Down Pipe -Ceramic Coating -Heat Wrap and Clamps Gasket Kit includes -(3) Pre-built Heater Hose Assemblies with quick connect fittings -Y-Bridge...More Details »
Item #: 1000375
Condition: New
Price: $500.00
Sale: $425.00
Save: 15%
Save: $75.00


2020-2025 GM 6.6L Duramax 10L1000 Heavy-Duty Cast Aluminum Transmission Pan
Description: Features: Premium A356.0-T6 heat-treated cast aluminum alloy – a high-strength, thermally conductive material Precision-cast using permanent steel molds for a smooth, consistent finish and...More Details »
Item #: 128051420
Condition: New
Price: $399.99


2024+ GM L5P ECM E42 UNLOCK SERVICE UNLOCK 2500 HD 3500 HD Silverado Sierra
Description: ECMs with broken “LOCKING” tabs or connectors WILL NOT be accepted for upgrades. You MUST use OEM ECM. CAN NOT Swap or use a different one.
Item #: ECM-001
Condition: New
Price: $999.99


Item #: CUSTOM12
Condition: New
Price: $1,800.00


Price: $663.00
Sale: $574.82
Save: 13%
Save: $88.18


Allison 10L1000 Improved New GM 10 Speed Valve Body Assembly
Description: Allison 10L1000 Improved New GM 10 Speed Valve Body Assembly
Item #: 100-24044651
Condition: New
Price: $2,000.00


Cognito 3-Inch Performance Ball Joint Leveling Lift Kit With Fox PS 2.0 IFP Shocks for 20-25 Silverado/Sierra 2500/3500 2WD/4WD
Description: Kit fits all 2020+ GM HD Trucks 2500/3500 Yields 3-inches of front lift and 1-inch of rear lift Improves vehicle appearance and reduces nose-down rake Maintains adequate droop travel to retain...More Details »
Item #: 110-P0883
Condition: New
Price: $1,959.68


110-90910
Description: Corrected ball joint angle Added caster Maintenance-free ball joints
Item #: COG-110-90910
Condition: New
Price: $649.95

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DHD Dirty-Alli Hi-Performance 10L1000 Stage 2 Built Transmission 2020+ GM 2500/3500HD
Description: DHD Dirty-Alli Hi-Performance 10L1000 Stage 2 Built Transmission 2020+ GM 2500/3500HD
Item #: DH10L2 - Z
Condition: New
Price: $8,200.00


Computer Chip Programmer
Description: Edge EZ for 2024–2025 GM L5P Duramax adds emissions-safe power, throttle response & towing confidence. Plug-and-play, no-trace, 50-state legal module
Item #: BKDQ-20202
Condition: New
Available to Order
Price: $549.95

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Computer Chip Programmer
Description: Edge EZ for 2024–2025 GM L5P Duramax adds emissions-safe power, throttle response & towing confidence. Plug-and-play, no-trace, 50-state legal module
Item #: BKDQ-20202-3
Condition: New
Available to Order
Price: $999.95

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6.6L Duramax Billet Coolant Block Off Plate (2001-2025)
Description: Upgrade your rear engine cover and stop the coolant leaks for good! Our blocking plate is thicker than the stock plate and has an integral square cut O-ring with no gasket required. OE covers...More Details »
Item #: fpeFPE-DMAX-CBOP
Condition: New
Price: $55.00

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Description: Fox 2.0 Performance Series IFP Shocks
Item #: 980-24-967/980-24-958
Condition: New
Price: $919.80

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KRYPTONITE STAGE 2 LEVELING KIT 2020 Chevy Silverado/GMC Sierra 2500 HD/3500 HD
Description: KRYPTONITE STAGE 2 LEVELING KIT 2020 Chevy Silverado/GMC Sierra 2500 HD/3500 HD
Item #: KRYKR20STAGE2
Condition: New
Price: $799.99


2024-2025 L5P DURAMAX STEALTH 64MM DROP IN VGT
Description: Airflow capable of supporting up to 700HP Custom Billet compressor wheel Turbine Wheel and Nozzle Ring Upgrades Improved EGT control Compressor and turbine wheel durability upgrades Designed...More Details »
Item #: 64-STLTH-L5P2
Condition: New
Price: $3,100.00


2024-2025 L5P DURAMAX STEALTH 67MM DROP IN VGT
Description: Airflow capable of supporting up to 750HP Custom Billet compressor wheel Turbine Wheel and Nozzle Ring Upgrades Major top end EGT control Compressor and turbine wheel durability upgrades...More Details »
Item #: 67-STLTH-L5P
Condition: New
Price: $3,500.00


L5P / L5D Stealth STR Turbo (2024- 2025)
Description: Extra airflow to make 80-100rwhp over 'Tune only' L5P Works with box tuners, custom tuning, or without tuning Major EGT control improvments compaired to stock Built to last with more durable...More Details »
Item #: STR- STEALTH
Condition: New
Price: $2,400.00


Description: - CNC Machined Billet Cap is a direct OEM Replacement not a cover - Includes new diaphragm seal - Made in USA - Black Anodized Finish - Installs in seconds - Compatible with LB7, LLY, LBZ,...More Details »
Item #: WCF100216
Condition: New
In Stock. Ships in 3-5 business days.
Price: $45.00
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Description: - CNC Machined Billet Cap is a direct OEM Replacement not a cover - Includes new diaphragm seal - Made in USA - Clear Anodized Finish - Installs in seconds - Compatible with LB7, LLY, LBZ,...More Details »
Item #: WCF100215
Condition: New
In Stock. Ships in 3-5 business days.
Price: $45.00
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Description: Correct replacement sensor for WCFab Fabricated Coolant Tanks designed for LB7, LLY, LBZ, LMM and L5P Duramax trucks
Item #: WCF206-19
Condition: New
In Stock. Ships in 3-5 business days.
Price: $51.00

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Description: -CNC Machined Billet Aluminum GM factory oil cap filler neck replacement -Matches WCFab Billet Aluminum Coolant Tank and Brake Reservoir Caps -Includes o-ring seal -Machined cam lock -Black...More Details »
Item #: WCF100443
Condition: New
In Stock. Ships in 3-5 business days.
Price: $53.00

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Description: -CNC Machined Billet Aluminum GM factory oil cap filler neck replacement -Matches WCFab Billet Aluminum Coolant Tank and Brake Reservoir Caps -Includes o-ring seal -Machined cam lock -Clear...More Details »
Item #: WCF100442
Condition: New
In Stock. Ships in 3-5 business days.
Price: $53.00

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Description: - Compatible with OEM Intake Air Temperature Sensor (IAT) used on passenger (cold) side intercooler pipe on 2011-2016 LML and 2017-2025 L5P Duramax engines - M10x1.25 thread pitch - CNC Machined...More Details »
Item #: WCF205-18
Condition: New
In Stock. Ships in 3-5 business days.
Price: $15.00
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Description: -Your Choice of Custom Exergy Sportsman, 10mm, 12mm, or 14mm CP3 pump specific to this kit -Billet Aluminum, Black Anodized CP3 Pump Mount Plate -High Pressure Fuel Line -High Pressure Rail...More Details »
Item #: WCF100455, WCF100456, WCF100457, WCF100458
Condition: New
In stock. Ships in 3-5 business days.
This Product cannot ship to the state of California
Price: $2,575.00


Description: - Fully TIG Welded 11 GA Stainless Steel Construction - Heavy Duty 2" Driver Side Up Pipe - Heavy Duty 2" Passenger Side Up Pipe - Up Pipe Gaskets (4) - Flows 26% Better than OEM - NO TUNING REQUIRED - Made in USA
Item #: WCF100624
Condition: New
In Stock. Ships in 3-5 business days.
This Product cannot ship to the state of California
Price: $705.00


Description: - MAP Sensor Weld Fitting / Bung for Custom Fabricated Intercooler Piping - CNC Machined Billet Aluminum - Made in USA
Item #: WCF205-34
Condition: New
In Stock. Ships in 3-5 business days.
Price: $30.00
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Description: - CNC Machined Billet Aluminum Plug - Black anodized finish with engraved logo - NO Tuning required, bolt on! - Will fit on stock truck no other modifications or upgrades necessary!
Item #: WCF100473
Condition: New
In Stock. Ships in 3-5 business days.
Price: $32.00
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Description: - Fully TIG Welded, CNC machined billet steel exhaust manifolds - Finished in Black Ceramic Coat rated for 1800ºF - Includes new gaskets for manifold to cylinder head, EGR flange, and manifold...More Details »
Item #: WCF100226
Condition: New
In Stock. Ships in 3-5 business days.
This Product Cannot Ship to the State of California
Price: $2,225.00

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Description: - Fully TIG Welded, CNC machined billet steel exhaust manifolds - Finished in Black Ceramic Coat rated for 1800ºF - Includes new gaskets for manifold to cylinder head, EGR flange, and manifold...More Details »
Item #: WCF100373
Condition: New
In Stock. Ships in 3-5 business days.
This Product cannot ship to the state of California
Price: $1,619.00

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Description: - Flows 27% Better than Stock! - True 4" Inlet Turbo Intake with smooth flowing transition to strategically designed anti-surge face which properly engages into turbo compressor cover for...More Details »
Item #: WCF100775
Condition: New
WCFab Red, WCFab Grey, Illusion Purple, Bengal Blue, Bengal Red, Flat Black, Gloss Black, Gloss White and Candy Teal in stock and ships in 3-5 business days. 10-15 business day lead time on other colors.
This Product cannot ship to the state of California
Price: $269.00


In Stock. Ships in 3-5 business days.
Price: $15.00
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Description: - Direct Replacement for OEM Thermostat Housing - Custom Powder Coat Finish - Cleans up engine bay appearance - Completes the look when also running one of our Upper Coolant Pipes
Item #: WCF100188
Condition: New
WCFab Red, WCFab Grey, Candy Teal, Illusion Purple, Bengal Red, Gloss White, and Gloss Black in stock and ships in 3-5 business days. 10-15 business day lead time on other colors.
Price: $185.00


Description: ARP Up Pipe Bolt kit for 2017+ Duramax. 12 Washers and Bolts for installing both up pipes. Includes ARP Lube
Item #: WCF100199
Condition: New
In Stock. Ships in 3-5 business days.
Price: $62.00

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Description: - 3.5" Steel Down Pipe - High Temp Black Ceramic Coat Finish - Heat Wrap Pre-installed - Catalyst Back - Emissions Compliant - NO TUNING REQUIRED! - Made in USA
Item #: WCF100129
Condition: New
In Stock. Ships in 3-5 business days.
This Product cannot ship to the state of California
Price: $345.00


Description: ***For Regular Cab Long Bed, Double Cab Short Bed and Crew Cab Short Bed Models*** -LIFETIME WARRANTY against bending or breaking (to original purchaser) -60" Heavy Duty Bars -Poly Bushings...More Details »
Item #: WCF100826
Condition: New
WCFab Red, Gloss Black, Flat Black, and Gloss White with in stock and ships in 3-5 business days. 10-15 business day lead time on other colors.
Price: $999.00


Description: ***For Double Cab Long Bed and Crew Cab Long Bed Models*** -LIFETIME WARRANTY against bending or breaking (to original purchaser) -68" Heavy Duty Bars -Poly Bushings -RockJock Johnny Joints...More Details »
Item #: WCF100876
Condition: New
WCFab Red, Gloss Black, and Gloss White in stock and ships in 3-5 business days. 10-15 business day lead time on other colors.
Price: $999.00


Description: - Includes Axle side bolt on and Frame side weld on mounts - Grade 8 Hardware - This part number is mounting hardware only - Bars not included - Powder Coating with zinc primer base coat on axle side mounts
Item #: WCF100831
Condition: New
In Stock. Ships in 3-5 business days.
Price: $285.00


Description: Replaces OEM plastic front cover for lower engine bay and cooling stack which is prone to cracking and breaking. - Constructed from heavy gauge aluminum - Uses OEM mounting points - Provides...More Details »
Item #: WCF100459
Condition: New
Fine Texture Black in stock and ships in 3-5 business days. 10-15 business day lead time on other colors.
Price: $299.00


Description: -Aluminum Fabricated Cover -Stainless Hardware -Fill Plug -Custom Powder Coat Finish
Item #: WCF100114
Condition: New
WCFab Red, Gloss White, and Gloss Black in stock and ships in 3-5 business days. 10-15 business day lead time on other colors.
Price: $389.00


Description: WCFab 3/4" Front Bumper Spacer Kit for 2020-2025 GM 2500/3500 HD Trucks improves aftermarket wheel and tire fitment options by moving front bumper forward and away from front wheels creating more...More Details »
Item #: WCF100444
Condition: New
In Stock. Ships in 3-5 business days.
Price: $205.00

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Description: WCFab 3/8" Front Bumper Spacer Kit for 2020-2025 GM 2500/3500 HD Trucks improves aftermarket wheel and tire fitment options by moving front bumper forward and away from front wheels creating more...More Details »
Item #: WCF100446
Condition: New
In Stock. Ships in 3-5 business days.
Price: $147.00

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Description: - Qty. 4 CNC Machined Billet Aluminum Marker Light Delete Plates - High quality mounting hardware - Marker Light Harness Dummy Plugs - Available with or without machined WCFab logo in Raw...More Details »
Item #: WCF100390, WCF100391, WCF100392, WCF100393
Condition: New
WCF100390, WCF100392, WCF100393 In Stock. Ships in 3-5 business days. WCF100391 currently experiencing longer than normal lead times.
Price: $259.00


Description: -3" Hot Side Intercooler Pipe -Silicone Boots -T-Bolt Clamps -14g Mandrel Bent Aluminum Construction -Powder Coating -NO Tuning required, bolt on! -Will fit on stock truck no other...More Details »
Item #: WCF100365
Condition: New
WCFab Red, WCFab Grey, Illusion Purple, Bengal Red, Gloss Black, Gloss White and Candy Teal in stock and ships in 3-5 business days. 10-15 business day lead time on other colors.
This Product cannot ship to the state of California
Price: $345.00


Description: - 3.5 in. Cold Side Intercooler Pipe - Incorporated threaded bung to reinstall OEM Intake Temperature Sensor - Durable Powder Coat Finish - Silicone Boot - T-Bolt Clamps - O-Rings - 14g...More Details »
Item #: WCF100381
Condition: New
WCFab Red and Gloss Black in stock and ships in 3-5 business days. 10-15 business day lead time on other colors.
This Product cannot ship to the state of California
Price: $385.00


Description: -4" Intake Pipe -Air Box & Lid Constructed of 10G Aluminum Sheet -Dry Air Filter -Outerwear's Pre-Filter Cover -Hardware -Seal for Connection to Functional Ram Air Port on Hood -High Quality...More Details »
Item #: WCF100702
Condition: New
WCFab Red, WCFab Grey, Illusion Purple, Candy Blue, Bengal Red, Gloss White, and Gloss Black in stock and ships in 3-5 business days. 10-15 business day lead time on other colors.
This Product cannot ship to the state of California
Price: $649.00


Description: - 4" Intake Pipe - 4 in. Intake Horn with PCV Port and Surge Ring - Air Box & Lid Constructed of 10G Aluminum Sheet - Dry Air Filter - Outerwear's Pre-Filter Cover - Hardware - Seal for...More Details »
Item #: WCF100684
Condition: New
WCFab Red, WCFab Grey, Candy Teal, Gloss White, and Gloss Black in stock and ships in 3-5 business days. 10-15 business day lead time on other colors.
This Product cannot ship to the state of California
Price: $859.00


Description: -4" Intake Pipe -Silicone Hump and Straight Boots -T-bolt Clamps -Powder coating -NO Tuning required, bolt on! -Will fit on stock truck no other modifications or upgrades necessary!
Item #: WCF100720
Condition: New
Limited Supply
WCFab Red with Standard Brushed Tag, WCFab Grey with Standard Brushed Tag, and Gloss Black with Standard Brushed Tag in stock and ships in 3-5 business days. 10-15 business day lead time on other colors.
This Product cannot ship to the state of California
Price: $235.00


Description: - Auxiliary Coolant Tank for Fuel Cooler - Black Anodized Billet Aluminum Cap - Overflow Flow Fitting - Preformed Hose - Custom Powder Coat Finish
Item #: WCF100224
Condition: New
WCFab Red, WCFab Grey, Candy Teal, Illusion Purple, Bengal Red, Gloss White, and Gloss Black in stock and ships in 3-5 business days. 10-15 business day lead time on other colors.
Price: $249.00


Description: -Coolant Tank -Low Coolant Level Sensor -Black Anodized Billet Aluminum Cap -Over Flow Hose -Coolant Level Sight Glass -Installation hardware -Powder Coating
Item #: WCF100268
Condition: New
WCFab Red, WCFab Grey, Candy Teal, Illusion Purple, Bronze Chrome, Bengal Red, Gloss White, and Gloss Black in stock and ships in 3-5 business days. 10-15 business day lead time on other colors.
Price: $540.00


Description: - 3 in. Hot Side Intercooler Pipe - 3.5 in. Cold Side Intercooler Pipe - CNC Machined Flange and black anodized billet aluminum adapter with Double O-Rings provides an improved sealing surface to...More Details »
Item #: WCF100410
Condition: New
WCFab Red, WCFab Grey, Illusion Purple, Candy Teal, Bengal Red, Gloss White, and Gloss Black in stock and ships in 3-5 business days. 10-15 business day lead time on other colors.
This Product cannot ship to the state of California
Price: $699.00


Description: - 4 in. Aluminum Intake Pipe - 4 in. Intake Horn with PCV Port and Surge Ring - Air box enclosure with dry filter assembly and Outerwears pre-filter cover - Installation hardware, 4 in. silicone...More Details »
Item #: WCF100414
Condition: New
WCFab Red, WCFab Grey, Gloss Black, Gloss White, Illusion Purple, and Candy Teal in stock and ships in 3-5 business days. 10-15 business day lead time on other colors.
This Product cannot ship to the state of California
Price: $1,559.00


Description: - 4 in. Aluminum Intake Pipe - 4 in. Intake Horn with PCV Port and Surge Ring - Air box enclosure with dry filter assembly and Outerwears pre-filter cover - Installation hardware, 4 in. silicone...More Details »
Item #: WCF100418
Condition: New
WCFab Red, Candy Teal, Gloss White, and Gloss Black in stock and ships in 3-5 business days. 10-15 business day lead time on other colors.
This Product cannot ship to the state of California
Price: $1,885.00


Description: -Coolant Pipe -Silicone Boots -T-Bolt Clamps -Powder Coating
Item #: WCF100541
Condition: New
WCFab Red, WCFab Grey, Illusion Purple, Bronze Chrome, Candy Teal, Bengal Red, Gloss White, and Gloss Black in stock and ships in 3-5 business days. 10-15 business day lead time on other colors.
Price: $175.00


Description: - Made from thick, cast aluminum - Includes fasteners, pan, NPT plug, and billet stainless steel Neodymium magnet drain plug - Finished in your choice of custom powder colors - Provides 2...More Details »
Item #: WCF100134
Condition: New
10-15 Business Day Lead Time
Price: $509.00


Description: 2020-2024 Chevy 2500/3500 Fiberglass Roll Pan
Item #: wcfBHP5006
Condition: New
Price: $800.00

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Wehrli Custom Fabrication - Wehrli Big Hitch Products 20-24 GMC 2500/3500 Fiberglass Roll Pan - BHP5007
No Image Available
Description: 2020-2024 GMC 2500/3500 Fiberglass Roll Pan
Item #: wcfBHP5007
Condition: New
Price: $800.00

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Description: Double Bulb Seal for 2020-2025 L5P Duramax WCFab Air Box to Ram Air Hood
Item #: WCF206-52
Condition: New
In Stock. Ships in 3-5 business days.
Price: $29.95

Description: - Replaces ugly OEM aerial antenna - CNC Machined Billet Aluminum - Designed to resemble a TIG Torch Cap - Custom Powder Coat Finish - Made in USA - Installs in Minutes - Bluetooth Audio &...More Details »
Item #: WCF100041, WCF100049
Condition: New
WCFab Red, WCFab Grey, Gloss White, Gloss Black and Raw in stock and ships in 3-5 business days. 10-15 business day lead time on other colors.
Price: $61.00


In Stock. Ships in 3-5 business days.
Price: $1.99
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Description: - 14 Specially Selected High Strength Stainless Steel 12-point ARP fasteners - 14 Matched ARP Stainless Steel Washers
Item #: WCF100217
Condition: New
In Stock. Ships in 3-5 business days.
Price: $71.00

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Items 1-60 of 61

View Universal items for: 2025, Silverado 3500HD