- Home »
- Catalog
GI Service Center » 2020, GMC, Sierra 3500 HD
Products for:
- Year: 2020
- Make: GMC
- Model: Sierra 3500 HD
View Universal items for: 2020 GMC Sierra 3500 HD
Browse Products
HSP 2020-2024 Silverado/Sierra 2500HD/3500HD L5P Cold Side Tube Deluxe Illusion Blueberry HSP Diesel
Intercooler Pipes
Item #: HSP-D-605-2D-HSP-CB
Condition:
New
Price: $365.75
Intercooler Pipes
Item #: HSP-D-605-2D-HSP-CR
Condition:
New
Price: $365.75
Intercooler Pipes
Item #: HSP-D-605-2D-HSP-CP
Condition:
New
Price: $365.75
Intercooler Pipes
Item #: HSP-D-605-2D-HSP-GB
Condition:
New
Price: $365.75
Intercooler Pipes
Item #: HSP-D-605-2D-HSP-DG
Condition:
New
Price: $365.75
Intercooler Pipes
Item #: HSP-D-605-2D-HSP-O
Condition:
New
Price: $365.75
Intercooler Pipes
Item #: HSP-D-605-2D-HSP-W
Condition:
New
Price: $365.75
Intercooler Pipes
Item #: HSP-D-605-2D-HSP-Raw
Condition:
New
Price: $304.00
Intercooler Pipes
Item #: HSP-D-605-2D-HSP-SB
Condition:
New
Price: $365.75
Intercooler Pipes
Item #: HSP-D-605-2-HSP-BR
Condition:
New
Price: $247.00
Intercooler Pipes
Item #: HSP-D-605-2-HSP-CB
Condition:
New
Price: $247.00
Intercooler Pipes
Item #: HSP-D-605-2-HSP-CR
Condition:
New
Price: $247.00
Intercooler Pipes
Item #: HSP-D-605-2-HSP-CP
Condition:
New
Price: $247.00
Intercooler Pipes
Item #: HSP-D-605-2-HSP-GB
Condition:
New
Price: $247.00
Intercooler Pipes
Item #: HSP-D-605-2-HSP-DG
Condition:
New
Price: $247.00
Intercooler Pipes
Item #: HSP-D-605-2-HSP-O
Condition:
New
Price: $247.00
Intercooler Pipes
Item #: HSP-D-605-2-HSP-W
Condition:
New
Price: $247.00
Intercooler Pipes
Item #: HSP-D-605-2-HSP-Raw
Condition:
New
Price: $209.00
Intercooler Pipes
Item #: HSP-D-605-2-HSP-SB
Condition:
New
Price: $247.00
Exhaust System Kit
Description: Armor Lite Filter Back Exhaust System 5 in. Incl. Over-Axle Pipe/Tail-Pipe/Hardware/6 in. OD Tip Touring Profile Single Side Aluminized Steel Cutting Required More Details »
Item #: S60610AL
Condition:
New
Price: $429.99
Exhaust System Kit
Description: Armor Plus Filter Back Exhaust System 5 in. Incl. Over-Axle Pipe/Tail-Pipe/Hardware/6 in. OD Tip Touring Profile Single Side 409 Stainless Steel Cutting Required More Details »
Item #: S60610409
Condition:
New
Price: $539.99
Description: Armor Lite Cat Back Exhaust System 4 in. Tubing Single Side Exit 5 in. Outlet Diameter Tips Aluminized
Item #: S5093AL
Condition:
New
Price: $534.99
Description: Armor Pro Cat Back Exhaust System 4 in. Tubing Single Side Exit 5 in. Outlet Diameter Tips T304 Stainless Steel
Item #: S5093304
Condition:
New
Price: $974.99
Exhaust System Kit
Description: Armor Lite Filter Back Exhaust System 4 in. 5 in. Outlet Diameter Tip Single Side Exit Aluminized
Item #: S6059AL
Condition:
New
Price: $359.99
Exhaust System Kit
Description: Armor Pro Filter Back Exhaust System 4 in. 5 in. Outlet Diameter Tip Single Side Exit T304 Stainless Steel
Item #: S6059304
Condition:
New
Price: $489.99
Exhaust System Kit
Description: Armor BLK Filter Back Exhaust System 4 in. 5 in. Outlet Diameter Tip Single Side Exit Black Coated
Item #: S6059BLK
Condition:
New
Price: $514.99
Exhaust Tail Pipe Tip
Description: Armor BLK Exhaust Tip 5 in. Inlet Diameter 6 in Outlet Diameter 15.5 in. Length 30 deg. Bend Angled Rolled End T304 Stainless Steel Black Coated
Item #: T5154BLK
Condition:
New
Price: $169.99
Exhaust Tail Pipe Tip
Description: Armor Pro Exhaust Tip 5 in. Inlet Diameter 6 in Outlet Diameter 15.5 in. Length 30 deg. Bend Angled Rolled End T304 Stainless Steel Mirror Polished More Details »
Item #: T5154
Condition:
New
Price: $164.99
Description: - Replaces failure prone plastic factory GM Heater Core Firewall Coolant Fitting
- Billet direct-fit replacement with 5/8" barb connection
- More resistant to heat and vibration
- Double O-ring...More Details »
Item #: WCF100155
Condition:
New
In Stock. Ships in 3-5 business days.
Price: $42.00
Sale: $41.00
Save: 2%
Save: $1.00
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
Sale: $44.00
Save: 2%
Save: $1.00
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
Sale: $44.00
Save: 2%
Save: $1.00
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
Sale: $49.00
Save: 4%
Save: $2.00
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
Sale: $51.00
Save: 4%
Save: $2.00
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
Sale: $51.00
Save: 4%
Save: $2.00
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
Description: - Fits L5P Duramax 2017-2019 Short Bed & Long Bed and 2020-2024 Long Bed (except 2023 & 2024 dually)
- Increase fuel filter capacity and amount of time between filter changes
- Anodized billet...More Details »
Item #: WCF100361
Condition:
New
In Stock. Ships in 3-5 business days.
Price: $255.00
Sale: $245.00
Save: 4%
Save: $10.00
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
Sale: $2,495.00
Save: 3%
Save: $80.00
Description: -Mount Bracket
-Zinc primer & Semi gloss black powder coat finish
Item #: WCF100276
Condition:
New
In Stock. Ships in 3-5 business days.
Price: $64.00
Sale: $62.00
Save: 3%
Save: $2.00
Description: - Gasket Kit for 2017-2023 L5P / 2019+ L5D Duramax OEM/VGT Turbos
Item #: WCF100178
Condition:
New
In stock. Ships in 3-5 business days.
Price: $150.00
Sale: $145.00
Save: 3%
Save: $5.00
Description: • Easy to install blanket keeps heat inside the turbo housing
• Decreases under hood temperatures
• Internally rated to over 2500°F direct heat
• Durable high temperature exterior shell...More Details »
Item #: WCF100822
Condition:
New
In Stock. Ships in 3-5 business days.
Price: $159.00
Sale: $153.00
Save: 4%
Save: $6.00
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
Sale: $689.00
Save: 2%
Save: $16.00
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
Sale: $29.00
Save: 3%
Save: $1.00
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
Sale: $31.00
Save: 3%
Save: $1.00
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
Sale: $2,159.00
Save: 3%
Save: $66.00
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
Sale: $1,574.00
Save: 3%
Save: $45.00
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
Sale: $259.00
Save: 4%
Save: $10.00
In Stock. Ships in 3-5 business days.
Price: $15.00
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
Sale: $179.00
Save: 3%
Save: $6.00
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
Sale: $60.00
Save: 3%
Save: $2.00
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
Sale: $335.00
Save: 3%
Save: $10.00
Description: - Full length 11G steel c-channel frame rail extensions
- Three full width crossmembers
- Eight bed mounting points
- Front and rear bolt points to chassis
- Made in USA
- Available as a DIY...More Details »
Item #: WCF100627
Condition:
New
10-15 Business Day Lead Time
Ships truck freight. Shipping address must be commercial address with access to a forklift to unload or nearest freight hub for pick up. Will Call Pickup at our facility is also available.
Price: $995.00
Description: -3 1/2" Intake Horn
-O-Ring
-Mounting studs and nuts
-Powder coating
-NO Tuning required, bolt on!
-Will fit on stock truck no other modifications or upgrades necessary!
Item #: WCF100833
Condition:
New
Limited Supply
Limited selection. Please see Powder Coating drop down for remaining in stock options. Ships in 3-5 business days. CLEARANCE ITEM. ALL SALES FINAL.
This Product cannot ship to the state of California
Price: $234.00
Sale: $175.50
Save: 25%
Save: $58.50
Description: - Fits 2020+ L5P Duramax Short Bed Trucks
- Increase fuel filter capacity and amount of time between filter changes
- Anodized billet aluminum fuel filter base
- Installs in the same location as...More Details »
Item #: WCF100362
Condition:
New
In Stock. Ships in 3-5 business days.
Price: $255.00
Sale: $245.00
Save: 4%
Save: $10.00
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 with Standard Brushed Tag, Gloss Black with Standard Brushed Tag, and Gloss White with Standard Brushed Tag in stock and
ships in 3-5 business days. 10-15
business day lead time on other colors.
Price: $999.00
Sale: $989.00
Save: 1%
Save: $10.00
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
Sale: $989.00
Save: 1%
Save: $10.00
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
Sale: $274.00
Save: 4%
Save: $11.00
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
Sale: $289.00
Save: 3%
Save: $10.00
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
Sale: $374.00
Save: 4%
Save: $15.00
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
Sale: $199.00
Save: 3%
Save: $6.00
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
Sale: $142.00
Save: 3%
Save: $5.00