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UnderDog Diesel » 2024, Sierra 3500
Products for:
- Year: 2024
- Model: Sierra 3500
View Universal items for: 2024 Sierra 3500
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No Image Available
This item ships Ground regardless of shipping method selected. No exceptions.
Price: $685.00
No Image Available
This item ships Ground regardless of shipping method selected. No exceptions.
Price: $785.00
NEW!
Description: This kit is an upgrade to an existing cheap Kit, this is not a complete kit by itself.
Item #: L5P-COOLANT-BYPASS-UPGRADE
Condition:
New
Price: $269.00
Lead Time may Vary
Price: $799.99
CCV Kit, Oil Fill Relocation
Description: SEMA Certified Emissions Compliant: SC-JZM01-0067
-Made in USA
-Billet Aluminum
-Patent Pending
-Cam Lock Oil Fill Cap
-Extended Length Oil Fill Tube
Item #: L5P-CCV-KIT-COMPLIANT
Condition:
New
Not Available
Price: $419.99
CCV Kit, Oil Fill Relocation
Description: -Made in USA
-Billet Aluminum
-Cam Lock Oil Fill Cap
-Extended Length Oil Fill Tube
Item #: L5P-CCV-KIT
Condition:
New
Not Available
Price: $389.00
Small Lead Time on Raw, 10-15 Business Days on Black
This product cannot ship to California.
Price: $389.99
Resonator Delete
Description: 3D Printed in House
Extra Durable ASA Plastic infused with Carbon Fiber
No Tuning Needed
Item #: DogBone-L5P-RES
Condition:
New
Price: $19.99
Oil Filler Neck
Description: This kit is a replacement for aftermarket CCV kits, such as the old JZM, DNA Distributors, SPELAB, VSE Kits.
6.875" Tall, ~ 1" Taller than other kits on the market. (2.5" Taller than the Old JZM Kit)
Cam-Lock Cap w/ O-ring Seal
Item #: JZM-L5P-OILFILL-KIT
Condition:
New
Not Available
Price: $179.99
Description: Filters Included
Item #: VSE-L5P-FSS
Condition:
New
Raw Aluminum - 5 business day lead time | Midnight Black - 10-15 business day lead time | Ground shipping only
Price: $478.99
NEW!
Description: Includes:
-Install Kit
-Banks Oil Pan with Pre-Installed Oil Drain (If truck is equipped with a lift kit, or you already have an aftermarket Oil Pan, please contact us)
-10 Bar MAP Sensor Kit...More Details »
Item #: VSE-17-26-L5P-COMPOUND-KIT
Condition:
New
Free Ground Shipping
Price: $7,199.00
Item #: VSE-ITK-HRN-STOCK-65
Condition:
New
Lead time may vary.
Price: $299.00
No Image Available
This item ships Ground regardless of shipping method selected. No exceptions.
Price: $485.00
No Image Available
Price: $400.00
Catch Can Kit
Description: Fits:
ALL 2020-2026 6.6L GM Duramax equipped pickup trucks
ALL 2020-2026 6.6L GM Duramax equipped cab and chassis models.
Works with stock CCV & Aftermarket CCV Kits*
*If the truck is a...More Details »
Item #: VSE-20-24-L5P-CC
Condition:
New
(Raw - Ships in 3-5 Business Days)
(Midnight Black - Estimated 10-15 Business Day Lead Time)
Price: $399.99
Description: Will NOT fit Pro Model Truck
Item #: UDD-2024-52MM-Mount-D
Condition:
New
Price: $85.00
Description: Will NOT fit Pro Model Truck
Item #: UDD-2024-52MM-Mount-S
Condition:
New
Price: $65.00
NEW!
Description: Quality Parts and Tuning, not a Cheap Chinese Kit.
All Tuning is via the TDN App, no Laptop Required!
All SALES OF THIS PRODUCT ARE FINAL. NO REFUNDS, RETURNS, OR EXCHANGES PERMITTED.
Item #: 24-L5P-Performance-Kit
Condition:
New
Free Ground Shipping
Price: $4,669.90
Item #: GEN2-L5P-PEDESTAL-KIT
Condition:
New
ETA - May 2026
(Do Not Order if you CANNOT wait.)
Price: $449.99
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...More Details »
Item #: DM1QQ1070200000
Condition:
New
Price: $3,100.00
Description: - Airflow capable of supporting up to 750HP
- Compressor and turbine wheel durability upgrades
- Custom Billet compressor wheel
- Turbine Wheel and Nozzle Ring Upgrades
- Major top end EGT...More Details »
Item #: DM1QQ1070303000
Condition:
New
Price: $3,500.00
Description: - Extra airflow to make 80-100rwhp over 'Tune only' L5P
- Works with box tuners, custom tuning, or without tuning
- Major EGT control improvements compared to stock
- Built to last with more...More Details »
Item #: DM1QQ1070103000
Condition:
New
Price: $2,400.00
This item is non-returnable. Sales are final.
Price: $129.00
Description: Allows for complete removal of the flexible line
Caps off the hardline at the frame.
Truck must be tuned for off-road use only.
Item #: UDD-D49-9.49
Condition:
New
In stock.
Price: $5.99
Air Suspension Helper Spring Kit
Description: LoadLifter 5000 ULTIMATE Leaf spring air spring kit with internal jounce bumper
Item #: 88341
Condition:
New
Price: $962.37
Air Suspension Helper Spring Kit
Description: The LoadLifter 7500 XL Ultimate offers greater leveling strength for towing and hauling with 7 inch double bellows air springs and up to 7500 lbs. load-leveling capacity. The fully adjustable kit...More Details »
Item #: 57541
Condition:
New
Price: $1,105.65
Suspension Leveling Kit
Description: LoadLifter 5000; Leaf Spring Leveling Kit.
Item #: 57341
Condition:
New
Price: $768.74
Injection Pump
Item #: AP54951
Condition:
New
Price: $831.12
Injection Pump
Item #: AP54950
Condition:
New
Price: $613.34
Truck Cab Side Step
Description: BedStep® - Retractable Rear Bumper Access Step Fits: 2020-2021 Chevrolet Silverado 2500 HD; 2020-2021 Chevrolet Silverado 2500 HD; 2020-2021 Chevrolet Silverado 3500 HD; 2020-2021 Chevrolet...More Details »
Item #: 75327-01A
Condition:
New
Price: $329.99
Truck Cab Side Step
Description: Bedstep 2 Retractable Bed Side Step fits 2020-2020 Chevrolet Silverado/Sierra 2500/3500 Fits: 2020 Chevrolet Silverado 2500 HD, 2020 Chevrolet Silverado 3500 HD, 2020 GMC Sierra 2500 HD, 2020 GMC Sierra 3500 HD
Item #: 75418-01A
Condition:
New
Price: $329.99
Running Board
Description: PowerStep Xtreme Electric Running Board for Extreme Conditions fits 22-24 Chevrolet Silverado/GMC Sierra; Double and Crew Cab; Includes Gas and Diesel Fits: 2022-2023 Chevrolet Silverado 1500, 2024...More Details »
Item #: 78255-01A
Condition:
New
Price: $2,199.99
Running Board
Description: PowerStep XL Electric Running Board, Offers 3 Inch Additional Drop, fits 2022 Chevrolet Silverado/GMC Sierra 1500; Crew Cab; Includes Gas and Diesel Fits: 2022 Chevrolet Silverado 1500 Crew Cab...More Details »
Item #: 77255-01A
Condition:
New
Price: $2,299.99
Running Board
Description: PowerStep Plug-N-Play Automatic Power-Deploying Running Boards fits 2022 Chevy Silverado 1500/GMC Sierra 1500 Double/Crew Cab; Includes Gas and Diesel Fits: 2022 Chevrolet Silverado 1500 Crew Cab...More Details »
Item #: 76255-01A
Condition:
New
Price: $1,799.99
Running Board
Description: PowerStep SmartSeries Running Board fits 2022-23 Silverado/Sierra 1500, 2024 Silverado/Sierra 2500/3500HD Double/Crew Cab
Item #: 86255-01A
Condition:
New
Price: $1,949.99
Description: Fits: 2001 thru 2024 Chevy Silverado/GMC Sierra 2500HD/3500HD LB7/LLY/LBZ/LMM/LML/L5P Duramax Diesel w/ Allison Automatic Transmission
Item #: 230-2901
Condition:
New
Price: $97.98
Sale: $94.99
Save: 3%
Save: $2.99
Tonneau Cover
Description: Revolver X4s Hard Rolling Truck Bed Cover - 2020-2024 Chevy Silverado/GMC Sierra 2500 HD/3500 HD 8' Bed Application Summary: 2020-2024 Chevrolet Silverado 2500 HD 98.2 Bed, 2020-2024 Chevrolet...More Details »
Item #: 80134
Condition:
New
Price: $1,399.99
MAP Sensor Spacer
Description: Extends MAP Sensor Life
Protects sensor from soot buildup
Lower & Upper MAP Sensor Relocator
FOR 2023-2025 CHEVY/GMC 2500/3500 6.6L L5P
This is for both MAP Sensors, if you already have the upper, please purchase 64414
Item #: 64415
Condition:
New
Price: $143.33
Sale: $129.00
Save: 10%
Save: $14.33
MAP Sensor Spacer
Description: Extends MAP Sensor Life
Protects sensor from soot buildup
Lower MAP Sensor Relocator
FOR 2023-2025 CHEVY/GMC 2500/3500 6.6L L5P
This is for the lower MAP sensor only. This kit is intended for...More Details »
Item #: 64414
Condition:
New
Price: $76.67
Sale: $69.00
Save: 10%
Save: $7.67
MAP Sensor Spacer
Description: Extends MAP Sensor Life
Protects sensor from soot buildup
MAP Sensor Relocator
FOR 2017-2025 CHEVY/GMC 2500/3500 6.6L L5P
Item #: 64410
Condition:
New
Not Available
Price: $76.67
Sale: $69.00
Save: 10%
Save: $7.67
Description: Banks iDash Pro, Universal CAN, Stand-Alone for ALL 2008+ OBDII CAN bus vehicles Note: Universal CAN, Stand-Alone Standard 52mm size
Mount Not Included, Checkout the 3D Print Tab for our in...More Details »
Item #: 66710
Condition:
New
Price: $419.00
Description: -Huge increase in size and flow over stock and competitors (3.5" vs 2.5")
-Hot Side flows 490 CFM @ 12" vs stock 388 CFM
-Cold Side flows 635 CFM @ 12" vs stock 435 CFM
-Constant 3.5in diameter...More Details »
Item #: 26005
Condition:
New
Price: $775.56
Sale: $698.00
Save: 10%
Save: $77.56
Engine Oil Pan
Description: For 2020-2026 Chevy/GMC 2500/3500 6.6L Diesel L5P
If the truck has a lift kit, contact us to verify fitment before purchase.
Item #: 35137-B
Condition:
New
Currently on Back Order
Price: $476.67
Sale: $429.00
Save: 10%
Save: $47.67
Description: iDash Pro Required! Not included. DOES NOT WORK WITH IDASH SUPERGAUGE OR DATAMONSTER
-Adds 86 hp and 178 lb-ft at the wheels
-6 power levels that can be changed on-the-fly via iDash...More Details »
Item #: 67137
Condition:
New
Estimated to ship Early August
Price: $1,086.67
Sale: $978.00
Save: 10%
Save: $108.67
Description: -Adds 86 hp and 178 lb-ft at the wheels
-6 power levels that can be changed on-the-fly via iDash
-Interfaces with OBD (On-Board Diagnostics) to communicate with vehicle's ECM
-Warranty friendly:...More Details »
Item #: 67128
Condition:
New
Estimated to ship Early August
Price: $1,642.22
Sale: $1,478.00
Save: 10%
Save: $164.22
Description: -Adds 86 hp and 178 lb-ft at the wheels
-6 power levels that can be changed on-the-fly via iDash
-Interfaces with OBD (On-Board Diagnostics) to communicate with vehicle's ECM
-Warranty friendly:...More Details »
Item #: 67108
Condition:
New
Price: $1,553.33
Sale: $1,398.00
Save: 10%
Save: $155.33
Turbo Inlet Horn, Intake Manifold
Description: The Banks Monster-Ram Turbo Inlet for the 2017-2025 Duramax L5P is the only intake elbow that outperforms stock without the destructive effects of turbo surge. More than a year in development, the...More Details »
Item #: 42792-N
Condition:
New
50-State Emission Compliant CARB-EO D-161-158
Price: $321.11
Sale: $289.00
Save: 10%
Save: $32.11
Turbo Inlet Horn, Intake Manifold
Description: The Banks Monster-Ram Turbo Inlet for the 2017-2025 Duramax L5P is the only intake elbow that outperforms stock without the destructive effects of turbo surge. More than a year in development, the...More Details »
Item #: 42792-R
Condition:
New
Limited Supply: Only 4 Left!
50-State Emission Compliant CARB-EO D-161-158
Price: $332.22
Sale: $299.00
Save: 10%
Save: $33.22
Banks Power Pedal Monster Throttle Sensitivity Booster for Use w/ Exst. iDash - 2020+ GM 2500/3500HD
Throttle Assist
Description: PedalMonster, Throttle Sensitivity Booster for use with existing iDash and/or Derringer for 2020+ GM 2500/3500HD
Item #: 64311
Condition:
New
Price: $354.44
Sale: $319.00
Save: 10%
Save: $35.44
Description: For 2020-2026 Chevy/GMC 2500/3500 6.6L Diesel
with 10 speed Allison 10L1000 Transmission
Will NOT work with AEV skid plates.
Item #: 35148-B
Condition:
New
Not Available
Price: $476.67
Sale: $429.00
Save: 10%
Save: $47.67
Cold Air Intake
Description: Does not fit 2025 Models.
Removes restrictions, sharpens turbo response, and improves fuel economy. 58% mass air flow gain.
Item #: 42285-D
Condition:
New
Not Available
10-14 Business Day Lead Time
Price: $550.00
Sale: $495.00
Save: 10%
Save: $55.00
Cold Air Intake
Description: Does not fit 2025 Models.
Removes restrictions, sharpens turbo response, and improves fuel economy. 58% mass air flow gain.
Item #: 42285
Condition:
New
Price: $550.00
Sale: $495.00
Save: 10%
Save: $55.00
Pitman Arm Support
Item #: 110-90772
Condition:
New
Price: $259.95
Description: Easy Installation
No trimming is required to install if leaving off the factory mud guards
Mild steel silver zinc plating for corrosion resistance
30-minute DIY install time
Made in the USA...More Details »
Item #: 110-91193
Condition:
New
Price: $99.95
Description: One extra high strength dowel pin
Item #: 29601
Condition:
New
Price: $2.50
Description: L5P CP3 Conversion Kit with 10mm CP3 pump.
Item #: D06-C10-146
Condition:
New
Price: $3,250.00
Sale: $3,217.50
Save: 1%
Save: $32.50
Description: L5P CP3 Conversion Kit with 12mm CP3 pump.
Item #: D06-C12-146
Condition:
New
Price: $3,750.00
Sale: $3,712.50
Save: 1%
Save: $37.50
Description: L5P CP3 Conversion Kit with 14mm CP3 pump.
Item #: D06-C14-146
Condition:
New
Price: $4,250.00
Sale: $4,207.50
Save: 1%
Save: $42.50
HP Tuners Custom Tuning
Description: All SALES OF THIS PRODUCT ARE FINAL. NO REFUNDS, RETURNS, OR EXCHANGES PERMITTED.
MPVI4 or RTD4 REQUIRED for use with the TDN App, any other model of HP Tuners Device will not work....More Details »
Item #: DSP-GM-HPT-24
Condition:
New
Price: $1,650.00