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- Model: Sierra 2500
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Item #: LML-60SAC
Condition:
New
This product cannot ship to California.
Price: $4,066.40
Item #: LML-80SAC
Condition:
New
This product cannot ship to California.
Price: $4,336.80
Item #: LML-10SAC
Condition:
New
This product cannot ship to California.
Price: $2,610.40
Fuel Tank
Description: Extra Large Midship Tank 39 Gallon
Item #: 7010101
Condition:
New
Price: $1,642.55
Fuel Tank
Description: Extra Large Midship Tank 52 Gallon
Item #: 7010201
Condition:
New
Price: $1,642.55
Fuel Tank
Description: Extra Large Midship Tank 56 Gallon
Item #: 7010220
Condition:
New
Price: $1,300.55
Fuel Tank
Description: Extra Large Midship Tank 56 Gallon Cross Linked Polyethylene Fuel Tank
Item #: 7010217
Condition:
New
Price: $1,300.55
Fuel Tank
Description: Extra Large Midship Tank 57 Gallon
Item #: 7010211
Condition:
New
Price: $1,481.05
Fuel Tank
Description: Extra Large Midship Tank 60 Gallon
Item #: 7010320
Condition:
New
Price: $1,367.05
Fuel Tank
Description: Extra Large Midship Tank 62 Gallon
Item #: 7010301
Condition:
New
Price: $1,851.55
Fuel Tank
Description: Extra Large Midship Tank 66 Gallon
Item #: 7010317
Condition:
New
Price: $1,443.05
Fuel Pump Gasket
Description: Fuel Pump Seal Kit
Item #: 0199003
Condition:
New
Price: $141.55
Fuel Tank Attaching Hardware
Description: Fuel Tank Adaption Kit Incl. Lock Ring/Bottom Ring And O-Rings
Item #: 0199004
Condition:
New
Price: $94.05
![TITAN Fuel Tanks - TITAN Fuel Tanks Installation Kit For Use w/ PN[4010201] - 0101310](https://underdog-diesel.com/images/T198668154.jpeg)
Fuel Tank Attaching Hardware
Description: Installation Kit For Use w/ PN[4010201] Superseded By PN[02 0131 0000]
Item #: 0101310
Condition:
New
Price: $103.55
Fuel Tank
Description: Spare Tire Auxiliary Fuel System
Item #: 4010201
Condition:
New
Price: $2,041.55
Fuel Tank
Description: Spare Tire Auxiliary Fuel System
Item #: 4010211
Condition:
New
Price: $2,032.05
Spare Tire Carrier Mount
Description: Spare Tire Buddy In Bed Tire Mount
Item #: 9901330
Condition:
New
Price: $94.05
Fuel Tank
Description: Travel Trekker Auxiliary Diesel Fuel System In Bed 40 Gallon
Item #: 5410040
Condition:
New
Price: $1,329.05
Fuel Tank
Description: Travel Trekker Auxiliary Diesel Fuel System In Bed 50 Gallon
Item #: 5410050
Condition:
New
Price: $1,357.55
Description: Transmission Removal NOT Required
Item #: SK Allison-Jr
Condition:
New
Price: $78.63
Description: Transmission Removal Required
Item #: ALLISON SK
Condition:
New
Price: $225.14
Turbo Inlet Manifold
Item #: 76-1006B
Condition:
New
Price: $195.00
Item #: UDD112
Condition:
New
Price: $23.99
EPC Fooler
Description: -Increased Line Pressure
-Increased Clamping Force to Clutch Packs
-Increased Ability to hold more HP
-Enhances Transmission Performance
-Easy Install
Item #: UDD-EPC-FOOLER
Condition:
New
Price: $44.99
Description: 3 CP3 Kit Options! Be sure to select the one best suited to your trucks modifications.
UnderDog Diesel CP3 Kit w/ SuperSport - for Modified Trucks, TUNING REQ'D
S&S Diesel CP3 Conversion w/...More Details »
Item #: UDD-LML-FSCK-CP3
Condition:
New
Price: $4,659.00
Description: For use on applications up to 800HP
Item #: UDD-CP3CK-10
Condition:
New
This product cannot ship to California.
Price: $2,590.00
Description: For use on applications up to 1000HP.
Item #: UDD-CP3CK-12
Condition:
New
This product cannot ship to California.
Price: $3,120.00
Description: For use on Extreme Applications, up to 1200HP.
Item #: UDD-CP3CK-14
Condition:
New
This product cannot ship to California.
Price: $3,399.00
Description: For use on modified stock to 650HP applications.
Item #: UDD-CP3CK-SS
Condition:
New
This product cannot ship to California.
Price: $1,699.00
NEW!
UnderDog Diesel/S&S Diesel Motorsport CP4 Contamination Kit - 2011-2016 LML Duramax - Builder Series
Description: Build Back Better with our UnderDog Diesel/S&S Diesel Motorsport CP4 Contamination Builder Series Kit!
Choose your size of S&S Diesel Motorsport Injectors & CP3 to chase that HP Goal after a CP4 Failure, all in one convenient kit!
Item #: UDD-S&S-LML-FSCK-BUILDER
Condition:
New
Lead Time on Injectors & Large Pumps - Roughly 1 Week
Price: $900.00
Description: Brand New - No Core Charge
Item #: ZSG7675
Condition:
New
Price: $509.99
Description: CNC Machined Billet Aluminum Thermostatic Bypass Plug
Black Anodized Finish
High temperature silicone O-ring seals
Reduces fluid flow restriction to trans cooler
Simple Installation...More Details »
Item #: WCF100469
Condition:
New
In Stock. Ships in 3-5 business days.
Price: $59.00
Sale: $57.23
Save: 3%
Save: $1.77
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: $41.00
Sale: $39.77
Save: 3%
Save: $1.23
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
Item #: WCF100216
Condition:
New
In Stock. Ships in 3-5 business days.
Price: $44.00
Sale: $42.68
Save: 3%
Save: $1.32
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
Item #: WCF100215
Condition:
New
In Stock. Ships in 3-5 business days.
Price: $44.00
Sale: $42.68
Save: 3%
Save: $1.32
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)
- Made in USA
Item #: WCF100590
Condition:
New
In Stock. Ships in 3-5 business days.
This Product cannot ship to the state of California
Price: $625.00
Sale: $606.25
Save: 3%
Save: $18.75
Description: Passenger Side Up Pipe
Driver Side Up Pipe
Up Pipe Gaskets (4)
Item #: WCF100589
Condition:
New
10-15 Business Day Lead Time
This product cannot ship to California.
Price: $625.00
Sale: $606.25
Save: 3%
Save: $18.75
NEW!
Description: ***NOT COMPATIBLE WITH OEM INTAKE***
- Flows 40% Better than Stock
- True 4" Inlet Turbo Intake with smooth flowing transition to turbo compressor cover for optimized airflow and drivability...More Details »
Item #: WCF100535
Condition:
New
10-15 Business Day Lead Time
This product cannot ship to California.
Price: $179.00
Sale: $173.63
Save: 3%
Save: $5.37
Description: - 4" Intake Pipe
- 14g Aluminum Construction
- Air Box & Lid Constructed of 10G Aluminum Sheet
- Dry Air Filter
- Outerwear's Pre-Filter Cover
- Includes Installation Hardware
- 3 1/2" Intake...More Details »
Item #: WCF100300
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: $619.00
Sale: $600.43
Save: 3%
Save: $18.57
Description: 3" Driver Side Intercooler Pipe
14g Mandrel Bent Aluminum Construction
Silicone Boots
T-Bolt Clamps
Powder Coating
No tuning required
Item #: WCF100349
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.
This product cannot ship to California.
Price: $305.00
Sale: $295.85
Save: 3%
Save: $9.15
Description: -4" Intake
-Dry Air Filter
-Outerwear's Pre-Filter Cover
-T4 Pedestal with Hardware
-Stainless Steel Oil Feed and Drain Lines with Fittings
-3" Fabricated High Flow Y-Bridge
-3" Hot...More Details »
Item #: WCF100478
Condition:
New
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: $2,599.00
Sale: $2,521.03
Save: 3%
Save: $77.97
Description: 5" Intake
Dry Air Filter
Outerwear's Pre-Filter Cover
T4 Pedestal & Spacer with Hardware
Stainless Steel Oil Feed and Drain Lines with Fittings
3" Fabricated High Flow Y-Bridge
3" Hot...More Details »
Item #: WCF100489
Condition:
New
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: $2,789.00
Sale: $2,705.33
Save: 3%
Save: $83.67
Description: - 5" Intake
- Dry Air Filter
- Outerwears Pre-Filter cover
- 3.5" Cold Side Charge Pipe
- 3.5" Turbo Inlet Horn
- 3" One Piece Y-bridge with HD Bead roll end
- 3" Cold Side Intercooler Pipe...More Details »
Item #: WCF100570
Condition:
New
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: $3,349.00
Sale: $3,248.53
Save: 3%
Save: $100.47
Description: - 3" Fabricated Y-Bridge (for OEM style intake horn)
- 3" Passenger (Cold) Side Intercooler Pipe
- 3" Driver (Hot) Side Intercooler Pipe
- 14 ga Aluminum Construction
- FPRV Block Off Kit
-...More Details »
Item #: WCF100411
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.
This Product cannot ship to the state of California
Price: $1,145.00
Sale: $1,110.65
Save: 3%
Save: $34.35
Description: - 3" Fabricated Y-Bridge (for OEM style intake horn)
- 3" Passenger (Cold) Side Intercooler Pipe
- 3" Driver (Hot) Side Intercooler Pipe
- 4" Intake Pipe
- Air Box with Lid
- Dry Air...More Details »
Item #: WCF100435
Condition:
New
WCFab Red 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: $1,799.00
Sale: $1,745.03
Save: 3%
Save: $53.97
Description: 3" Fabricated Billet Y-Bridge
3" Passenger (Cold) Side Intercooler Pipe
3" Driver (Hot) Side Intercooler Pipe
4" Intake Pipe
14g Aluminum Construction
Air Box with Lid
Dry Air Filter...More Details »
Item #: WCF100712
Condition:
New
Ships in 10-15 business days
This product cannot ship to California.
Price: $2,025.00
Sale: $1,964.25
Save: 3%
Save: $60.75
Description: - Fully TIG Welded 11 GA Stainless Steel Construction
- Heavy Duty 2" Passenger Side Up Pipe (Clearanced for conventional down pipes)
- Includes Up Pipe Gaskets (2)
- Made in USA
Item #: WCF100654
Condition:
New
In Stock. Ships in 3-5 business days.
This Product cannot ship to the state of California
Price: $335.00
Sale: $324.95
Save: 3%
Save: $10.05
Description: - Fully TIG Welded 11 GA Stainless Steel Construction
- Heavy Duty 2" Passenger Side Up Pipe Passenger Side Up Pipe for Compound / Twin Turbo Applications
- Full flow design eliminates clearance...More Details »
Item #: WCF100648
Condition:
New
Built to order. 10-15 business day lead time.
This Product cannot ship to the state of California
Price: $335.00
Sale: $324.95
Save: 3%
Save: $10.05
Description: 4" Intake Pipe
14g Aluminum Construction
Air Box & Lid Constructed of 10G Aluminum Sheet
Dry Air Filter
Outerwear's Pre-Filter Cover
Includes Installation Hardware
Silicone Boot &...More Details »
Item #: WCF100190
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: $525.00
Sale: $509.25
Save: 3%
Save: $15.75
Wehrli Custom Fabrication 2001-2004 LB7 Duramax Fuel Pressure Relief Valve Block Off Kit - WCF100023
Description: -Stainless Block off Plug
-5/16" Fuel Line
-5/16" Brass Tee Fitting
-Hose Clamps
Item #: WCF100023
Condition:
New
In Stock. Ships in 3-5 business days.
Price: $72.00
Sale: $69.84
Save: 3%
Save: $2.16
Item #: WCF100797
Condition:
New
In Stock. Ships in 3-5 business days. While Supplies Last!
Price: $250.00
Sale: $242.50
Save: 3%
Save: $7.50
Description: 3" Fabricated Billet Y-Bridge (clearanced for OEM style intake horn)
3" Passenger Side Intercooler Pipe - 14g Mandrel Bent Aluminum Construction
FPRV Block Off Kit
Silicone Boots
T-Bolt...More Details »
Item #: WCF100693
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.
This product cannot ship to California.
Price: $895.00
Sale: $868.15
Save: 3%
Save: $26.85
Description: 3" Downpipe
Heat Wrap
High Temp Ceramic Coating
Bolt on upgrade
No tuning required
Item #: WCF100119
Condition:
New
In Stock. Ships in 3-5 business days.
This product cannot ship to California.
Price: $239.00
Sale: $231.83
Save: 3%
Save: $7.17
Description: 14g Aluminum Coolant Pipe
Silicone Boots
Stainless Steel T-Bolt Clamps
Custom Powder Coat Finish
Item #: WCF100860
Condition:
New
WCFab Red in stock and ships in 3-5 business days. 10-15 business day lead time on other colors.
Price: $143.00
Sale: $138.71
Save: 3%
Save: $4.29
Description: - CNC Machined Billet Aluminum Thermostat Upper Housing
- Coolant Pipe
- Silicone Boots
- T-Bolt Clamps
Item #: WCF100405
Condition:
New
WCFab Red, WCFab Grey, Gloss Black, and Gloss White in stock and ships in 3-5 business days. 10-15 business day lead time on other colors.
Price: $474.00
Sale: $459.78
Save: 3%
Save: $14.22
Description: Coolant Tank
Low Coolant Level Sensor
Billet Anodized Cap
Over Flow Hose
Coolant Level Sight Glass
Installation Hardware
Powder Coating
Item #: WCF100645
Condition:
New
WCFab Red 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: $473.00
Sale: $458.81
Save: 3%
Save: $14.19
Description: -Coolant Tank
-Low coolant sensor
-Cap
-Hoses
-Clamps
-Fittings
-Powder Coating
Item #: WCF100642
Condition:
New
10-15 Business Day Lead Time
Price: $365.00
Sale: $354.05
Save: 3%
Save: $10.95
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 #: WCF100130
Condition:
New
WCFab Red & Gloss Black in stock and ships in 3-5 business days. 10-15 business day lead time on other colors.
Price: $179.00
Sale: $173.63
Save: 3%
Save: $5.37
Description: #NAME?
Item #: WCF206-19
Condition:
New
In Stock. Ships in 3-5 business days.
Price: $49.00
Sale: $47.53
Save: 3%
Save: $1.47