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UnderDog Diesel » 2015, Silverado 3500
Products for:
- Year: 2015
- Model: Silverado 3500
View Universal items for: 2015 Silverado 3500
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Description: - Up pipe to Turbo gasket
- Up pipe to Manifold gasket
Item #: WCF100364
Condition:
New
Price: $19.95
Sale: $19.35
Save: 3%
Save: $0.60
Description: TIG Welded Fabricated Aluminum Cover for Plastic Reservoir
Utilizes OEM Mounting Points and Hardware
Installs in minutes with basic hand tools
Custom Powder Coat Finish
Item #: WCF100205
Condition:
New
WCFab Red, Illusion Purple, Candy Teal, Bengal Blue, Bengal 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: $150.00
Sale: $145.50
Save: 3%
Save: $4.50
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: $51.41
Save: 3%
Save: $1.59
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: $51.41
Save: 3%
Save: $1.59
Item #: WCF100733
Condition:
New
In Stock. Ships in 3-5 business days.
Price: $160.00
Sale: $155.20
Save: 3%
Save: $4.80
Description: - 4" Intake Pipe (37% Gain in Air Flow Over Stock)
- 4.8" Intake Horn (5.6% Gain in Air Flow Over Stock)
- Air Box & Lid Constructed of 10G Aluminum Sheet
- Dry Air Filter with Pre-Filter Cover...More Details »
Item #: WCF100505
Condition:
New
10-15 business day lead time
This Product Cannot Ship to the State of California
Price: $2,595.00
Sale: $2,517.15
Save: 3%
Save: $77.85
Wehrli Custom Fabrication 2011-2016 Duramax / 2013-2018 Cummins Low Coolant Level Sensor - WCF206-25
Description: #NAME?
Item #: WCF206-25
Condition:
New
In Stock. Ships in 3-5 business days.
Price: $51.00
Sale: $49.47
Save: 3%
Save: $1.53
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 #: WCF100176
Condition:
New
WCFab Red, WCFab Grey, Illusion Purple, Candy Blue, Candy Teal, Gloss White, Gloss Black, Bengal Blue, and Bengal Red in stock and ships in 3-5 business days. 10-15
business day lead time on other colors.
Price: $185.00
Sale: $179.45
Save: 3%
Save: $5.55
Description: - Heavy Duty 2" Passenger Side Up Pipe
- Fully TIG Welded 11 GA Stainless Steel Construction
- Ductile Iron Cast EGR Connection w/ EGT Sensor Port
- Compatible with OEM & WCFab Turbo Down...More Details »
Item #: WCF100211
Condition:
New
In Stock. Ships in 3-5 business days.
This Product cannot ship to the state of California
Price: $430.00
Sale: $417.10
Save: 3%
Save: $12.90
Description: - Fully TIG Welded 11 GA Stainless Steel Construction
- Heavy Duty 2" Driver Side Up Pipe
- Heavy Duty 2" Passenger Side Up Pipe
- Ductile Iron Cast EGR Connection w/ EGT Sensor Port
-...More Details »
Item #: WCF100197
Condition:
New
In Stock. Ships in 3-5 business days.
This Product cannot ship to the state of California
Price: $709.00
Sale: $687.73
Save: 3%
Save: $21.27
Description: 23% Gain in Air Flow Over Stock
3.5 in. Cold Side Intercooler Pipe
14g aluminum construction
Incorporated threaded bung to reinstall OEM Intake Temperature Sensor
Silicone Boots...More Details »
Item #: WCF100682
Condition:
New
WCFab Red, WCFab Grey, 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 California.
Price: $345.00
Sale: $334.65
Save: 3%
Save: $10.35
Description: 37% Improvement in Air Flow Over Stock
4" Intake Pipe
Air Box & Lid Constructed of 10G Aluminum Sheet
Dry Air Filter
Outerwear's Pre-Filter Cover
Includes Installation Hardware...More Details »
Item #: WCF100194
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 California.
Price: $565.00
Sale: $548.05
Save: 3%
Save: $16.95
Description: - 37% Improvement in Air Flow Over Stock Intake
- 5.6% Improvement in Air Flow Over Stock Intake Horn
- 4" Intake Pipe
- Air Box & Lid Constructed of 10G Aluminum Sheet
- Dry Air Filter
-...More Details »
Item #: WCF100304
Condition:
New
WCFab Red, WCFab Grey, Candy Teal, Bengal Red, Gloss Black, and Gloss White 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: $865.00
Sale: $839.05
Save: 3%
Save: $25.95
Description: - Black Anodized, CNC Machined Billet CP3 Pump Mounting Plate
- Precision Formed, Pre-Bent CP3 Feed lines for use With or Without OEM Fuel Filter Housing
- CNC Machined Stainless Steel High Flow...More Details »
Item #: WCF100260
Condition:
New
Conversion Kits In Stock. Ships in 3-5 business days. Pump availability subject to manufacturer supply. Please contact us for details.
This product Cannot Ship to the State of California
Price: $775.00
Sale: $751.75
Save: 3%
Save: $23.25
Description: 3 in. Hot Side Intercooler Pipe
14g Mandrel Bent Aluminum Construction
Silicone Boot
T-Bolt Clamps
Powder Coating
No tuning required
Item #: WCF100353
Condition:
New
WCFab Red, WCFab Grey, 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 California.
Price: $315.00
Sale: $305.55
Save: 3%
Save: $9.45
Description: - Left & Right Mount
- High Grade Hardware for Mount to Engine
- Thread-locker compound
- Poly Bushings
- Powder Coating
Item #: WCF100160
Condition:
New
Gloss Black in stock and ships in 3-5 business days. 10-15 business day lead time on other colors.
Price: $479.00
Sale: $464.63
Save: 3%
Save: $14.37
Description: - 3 in. High Flow Upper Intercooler Cross Over Pipe (18% Gain in Air Flow Over Stock)
- 3.5 in. Passenger (Cold) Side Intercooler Pipe (23% Gain in Air Flow Over Stock)
- 3 in. Driver (Hot)...More Details »
Item #: WCF100409
Condition:
New
WCFab Red, WCFab Grey, Candy Teal, Bengal Blue, 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: $1,069.00
Sale: $1,036.93
Save: 3%
Save: $32.07
Description: - 4.8 in. Inlet, Largest Intake Horn on the Market
- CNC Machined Cast Aluminum Construction
- Includes PCV Port
- Eliminates Resonator Connection
- Silicone Reducer Boot
- Stainless Steel...More Details »
Item #: WCF100417
Condition:
New
WCFab Red, WCFab Grey, 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: $410.00
Sale: $397.70
Save: 3%
Save: $12.30
Description: 18% Gain in Air Flow Over Stock
3 in. High Flow Upper Intercooler Cross Over Pipe
14g aluminum construction
Compatible with OEM Y-Bridge
Includes Billet Turbo Resonator Plate for OEM...More Details »
Item #: WCF100328
Condition:
New
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 California.
Price: $430.00
Sale: $417.10
Save: 3%
Save: $12.90
Description: - 3.5 in. Passenger (Cold) Side Intercooler Pipe (23% Gain in Air Flow Over Stock)
- 3 in. Driver (Hot) Side Intercooler Pipe (18% Gain in Air Flow Over Stock)
- High Flow, Precision CNC...More Details »
Item #: WCF100278
Condition:
New
10-15 business day lead time
This Product Cannot Ship to the State of California
Price: $1,529.00
Sale: $1,483.13
Save: 3%
Save: $45.87
Description: - 4" Intake Pipe (37% Gain in Air Flow Over Stock)
- 4.8" Intake Horn (5.6% Gain in Air Flow Over Stock)
- Air Box & Lid Constructed of 10G Aluminum Sheet
- Dry Air Filter & Pre-Filter Cover
-...More Details »
Item #: WCF100439
Condition:
New
10-15 business day lead time
This Product Cannot Ship to the State of California
Price: $2,355.00
Sale: $2,284.35
Save: 3%
Save: $70.65
Description: - Made from cast A356.0-T6 aluminum
- Includes fasteners, pan, NPT plug, and billet stainless steel Neodymium magnet drain plug
- Finished in your choice of custom powder colors
- Provides 1...More Details »
Item #: WCF100132
Condition:
New
10-15 Business Day Lead Time
Price: $409.00
Sale: $396.73
Save: 3%
Save: $12.27
Description: - Flows 36% better than stock
- Precision CNC Machined Cast Aluminum Construction
- Includes 3 in., 14g aluminum, Fabricated High Flow Upper Intercooler Cross Over Pipe
- Includes Billet Turbo...More Details »
Item #: WCF100165
Condition:
New
WCFab Red, WCFab Grey, and Gloss Black in stock and ships in 3-5 business days. 10-15 business day lead time on other colors.
Price: $949.00
Sale: $920.53
Save: 3%
Save: $28.47
Description: 3" Down Pipe
High Temp Black Ceramic Coating
Heat Wrap
Item #: WCF100121
Condition:
New
In Stock. Ships in 3-5 business days.
This product cannot ship to California.
Price: $235.00
Sale: $227.95
Save: 3%
Save: $7.05
Description: 3" Stainless Downpipe (v-band flange)
Heat Wrap
No Tuning Required
Item #: WCF100704
Condition:
New
In Stock. Ships in 3-5 business days.
This product cannot ship to California.
Price: $265.00
Sale: $257.05
Save: 3%
Save: $7.95
Description: Coolant Tank
Low Coolant Level Sensor
Billet Anodized Cap
Over Flow Hose
Coolant Level Sight Glass
Installation hardware
Powder Coating
Made in USA More Details »
Item #: WCF100647
Condition:
New
WCFab Red, Candy Teal, Bengal 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.
Price: $489.00
Sale: $474.33
Save: 3%
Save: $14.67
Description: -Coolant Tank
-Low coolant sensor
-Cap
-Hoses
-Clamps
-Fittings
-Powder Coating
Item #: WCF100644
Condition:
New
10-15 Business Day Lead Time
Price: $379.00
Sale: $367.63
Save: 3%
Save: $11.37
Description: Coolant Pipe
Silicone Boots
T-Bolt Clamps
Powder Coating
Item #: WCF100696
Condition:
New
WCFab Red, WCFab Grey, Illusion Purple, Candy Teal, 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.
Price: $160.00
Sale: $155.20
Save: 3%
Save: $4.80
Description: ***For Regular Cab Long Bed, Extended 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 #: WCF100851
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: $969.03
Save: 3%
Save: $29.97
Description: ***For Extended 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 #: WCF100853
Condition:
New
WCFab Red with Standard Brushed Tag, Gloss White 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.
Price: $999.00
Sale: $969.03
Save: 3%
Save: $29.97
Wehrli Custom Fabrication 2011-2019 Duramax Traction Bar Brackets & Hardware Install Kit - WCF100841
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...More Details »
Item #: WCF100841
Condition:
New
In Stock. Ships in 3-5 business days.
Price: $285.00
Sale: $276.45
Save: 3%
Save: $8.55
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 #: WCF100432
Condition:
New
Fine Texture Black, Flat Black, and Gloss Black in stock and ships in 3-5 business days. 10-15 business day lead time on other colors.
Price: $299.00
Sale: $290.03
Save: 3%
Save: $8.97
Description: Fabricated tubular steel support connects rear housing of Allison transmission to transfer case reinforcing the weaker tail housing section to eliminate flex caused by driveline vibrations which...More Details »
Item #: WCF100140
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.
Price: $185.00
Sale: $179.45
Save: 3%
Save: $5.55
Description: This stainless steel grille mounts in the opening in the bumper on the 2015-2019 HD Chevrolet Silverado trucks providing protection to the trans cooler assembly from flying road debris while...More Details »
Item #: WCF100290
Condition:
New
Raw Stainless, Gloss White, Gloss Black, Flat Black, and Fine Texture Black in stock and ships in 3-5 business days. 10-15 business day lead time on other
colors.
Price: $140.00
Sale: $135.80
Save: 3%
Save: $4.20
Description: - Mounts between WCFAB Lower Valance Filler Panel and the bumper using the same OEM Hardware as the Filler Panel
- 16G Stainless Steel Construction
- License Plate Mounting Hardware included
- Made in USA
Item #: WCF100156
Condition:
New
In Stock. Ships in 3-5 business days.
Price: $47.00
Sale: $45.59
Save: 3%
Save: $1.41
Description: This aluminum panel cleanly finishes the bottom opening of your 2015-2019 Chevy Silverado HD truck bumper when the lower plastic air dam has been removed.
Allows for installation of more...More Details »
Item #: WCF100425, WCF100427
Condition:
New
Raw and Fine Texture Black in stock and ships in 3-5 business days. 10-15 business day lead time on other colors.
Price: $235.00
Sale: $227.95
Save: 3%
Save: $7.05
Description: This aluminum panel finishes the bottom opening of your 2015-2019 Chevy Silverado HD truck bumper when the lower plastic air dam has been removed.
Allows for installation of more aggressive...More Details »
Item #: WCF100426, WCF100428
Condition:
New
Raw in stock and ships in 3-5 business days. 10-15 business day lead time for powder coat.
Price: $235.00
Sale: $227.95
Save: 3%
Save: $7.05
Wehrli Custom Fabrication 2015-2019 GM 2500/3500HD Truck 3/4 in. Front Bumper Spacer Kit - WCF100462
Description: WCFab 3/4" Front Bumper Spacer Kit for 2015-2019 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 #: WCF100462
Condition:
New
In Stock. Ships in 3-5 business days.
Price: $235.00
Sale: $227.95
Save: 3%
Save: $7.05
Wehrli Custom Fabrication 2015-2019 GM 2500/3500HD Truck 3/8 in. Front Bumper Spacer Kit - WCF100453
Description: WCFab 3/8" Front Bumper Spacer Kit for 2015-2019 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 #: WCF100453
Condition:
New
In Stock. Ships in 3-5 business days.
Price: $190.00
Sale: $184.30
Save: 3%
Save: $5.70
Wehrli Custom Fabrication 2015.5-2016 LML Duramax 3" Stainless Down Pipe (3 Bolt Flange) - WCF100705
Description: 3" Stainless Downpipe (3 bolt flange)
Heat Wrap
No Tuning Required
Item #: WCF100705
Condition:
New
In Stock. Ships in 3-5 business days.
This product cannot ship to California.
Price: $359.00
Sale: $348.23
Save: 3%
Save: $10.77
Description: - Billet Aluminum Black Anodized Coolant Plug for Duramax Engine Cover, for 1.1" bore
- Includes high temperature silicone O-ring seal
Item #: WCF100025
Condition:
New
In Stock. Ships in 3-5 business days.
Price: $25.00
Sale: $24.25
Save: 3%
Save: $0.75
Description: -Left and Right side Billet Runner Intakes
-Stainless Hardware
-Stainless Braided pressure crossover line
Item #: WCF100348
Condition:
New
Please call for availability.
This Product cannot ship to the state of California
Price: $2,779.00
Sale: $2,695.63
Save: 3%
Save: $83.37
Description: Aluminum Fabricated Cover
Stainless Hardware
Fill Plug
Custom Powder Coat Finish
Made in USA
Item #: WCF100113
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.
Price: $389.00
Sale: $377.33
Save: 3%
Save: $11.67
Description: Mount Bracket
Zinc primer & Semi gloss black powder coat finish
Item #: WCF100269
Condition:
New
In Stock. Ships in 3-5 business days.
Price: $112.00
Sale: $108.64
Save: 3%
Save: $3.36
Description: - Preformed universal 1/2" heater hose assembly
- Billet aluminum quick-connect fitting replaces the leak prone OEM fitting
Item #: WCF100699
Condition:
New
In Stock. Ships in 3-5 business days.
Price: $78.00
Sale: $75.66
Save: 3%
Save: $2.34
Description: Fits 2007.5-2019 GM 2500 & 3500 HD trucks & 2014-2023 GM 1500 trucks.
- Replaces ugly OEM aerial antenna
- CNC Machined Billet Aluminum
- Designed to resemble a TIG Torch Cap
- Custom Powder...More Details »
Item #: WCF100041
Condition:
New
WCFab Red, WCFab Grey, Gloss White and Gloss Black in stock and ships in 3-5 business days. 10-15 business day lead time on other colors.
Price: $61.00
Sale: $59.17
Save: 3%
Save: $1.83
Description: -Parker stainless braided #10 drain and #4 Feed Line
-Plug for OEM feed location in valley
-Fitting for turbo Feed
-Fitting for engine block oil galley
-Turbo drain flange and fitting
-Flange...More Details »
Item #: WCF100397
Condition:
New
In Stock. Ships in 3-5 business days.
This Product cannot ship to the state of California
Price: $299.00
Sale: $290.03
Save: 3%
Save: $8.97
Description: -3" Down Pipe (HX40 STYLE FLANGE)
-V-band Clamp
-Heat Wrap & Clamps
-High Temp Coating
Item #: WCF100122
Condition:
New
Built to order. 10-15 business day lead time.
This Product cannot ship to the state of California
Price: $255.00
Sale: $247.35
Save: 3%
Save: $7.65
Description: -Parker stainless braided #10 drain and #4 Feed Line
-Plug for OEM feed location in valley
-Fitting for turbo Feed
-Fitting for engine block oil galley
-Turbo drain flange and fitting
-Flange...More Details »
Item #: WCF100396
Condition:
New
In Stock. Ships in 3-5 business days.
This Product cannot ship to the state of California
Price: $299.00
Sale: $290.03
Save: 3%
Save: $8.97
Description: - Left and Right Upper Valve Covers
- CNC Machined Billet Aluminum
- Built in clearances for performance engines equipped with rocker studs
- Flush Head Stainless hardware
- Black Anodized...More Details »
Item #: WCF100416
Condition:
New
Raw in stock and ships in 3-5 business days. 10-15 business day lead time on powder coat colors.
This Product cannot ship to the state of California
Price: $410.00
Sale: $397.70
Save: 3%
Save: $12.30
Description: Longer and Larger I.D. High-Pressure Line than Street Series Kit (WCF100711) and other CP3 Conversion Kits offered on the market which allows for more fuel volume
High pressure fitting at the...More Details »
Item #: WCF100402
Condition:
New
In Stock. Ships in 3-5 business days.
This product cannot ship to California.
Price: $415.00
Sale: $402.55
Save: 3%
Save: $12.45
No Image Available
Description: -3" Down Pipe
-V-band Clamp
-Heat Wrap & Clamps
-High Temp Coating
Item #: WCF100238
Condition:
New
Built to order. 10-15 business day lead time.
This Product cannot ship to the state of California
Price: $249.00
Sale: $241.53
Save: 3%
Save: $7.47
Description: -3" Down Pipe
-V-band Clamp
-Heat Wrap & Clamps
-High Temp Coating
Item #: WCF100244
Condition:
New
In Stock. Ships in 3-5 business days.
This Product cannot ship to the state of California
Price: $249.00
Sale: $241.53
Save: 3%
Save: $7.47
Description: - 4" Twin Turbo Down Pipe for LML Duramax
- For custom build racing applications to fabricate your own twin turbo kit
- Use in conjunction with WCFab Twin Turbo Pedestal (WCF100676) for proper...More Details »
Item #: WCF100280
Condition:
New
In Stock. Ships in 3-5 business days.
This Product cannot ship to the state of California
Price: $649.00
Sale: $629.53
Save: 3%
Save: $19.47
Description: - Fine Texture Black Powder Coated Finish
- Made in USA
Item #: WCF100421
Condition:
New
In Stock. Ships in 3-5 business days.
Price: $89.00
Sale: $86.33
Save: 3%
Save: $2.67
Item #: WCF206-11
Condition:
New
In Stock. Ships in 3-5 business days.
This Product cannot ship to the state of California
Price: $89.00
Sale: $86.33
Save: 3%
Save: $2.67
Item #: WCF206-38
Condition:
New
In Stock. Ships in 3-5 business days.
This Product cannot ship to the state of California
Price: $79.00
Sale: $76.63
Save: 3%
Save: $2.37
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
Sale: $68.87
Save: 3%
Save: $2.13
Description: Stainless braided drain and feed Lines, Fittings for turbo, oil pan and engine block.
Item #: WCF100379
Condition:
New
In Stock. Ships in 3-5 business days.
This Product cannot ship to the state of California
Price: $205.00
Sale: $198.85
Save: 3%
Save: $6.15
Item #: WCF100676
Condition:
New
In Stock. Ships in 3-5 business days.
This Product cannot ship to the state of California
Price: $289.00
Sale: $280.33
Save: 3%
Save: $8.67