- Home »
- Catalog
UnderDog Diesel » 2018, GMC, Sierra 3500
Products for:
- Year: 2018
- Make: GMC
- Model: Sierra 3500
View Universal items for: 2018 GMC Sierra 3500
Browse Products
Suspension Shock Absorber
Description: 46mm Monotube Shock Absorber
Item #: 25-311891
Condition:
New
Price: $289.00
Suspension Shock Absorber Reservoir Mount
Description: Reservoir Bracket Assembly
Item #: 11-176015
Condition:
New
Price: $42.00
Pitman Arm Support
Item #: 110-90772
Condition:
New
Price: $259.95
Description: Fits: 2017-2019 GM HD L5P Duramax Equipped Trucks
Item #: 27300
Condition:
New
Price: $325.00
Description: Only works with -10AN Transmission Lines
Item #: 24301
Condition:
New
Price: $290.00
Item #: 25300
Condition:
New
Price: $55.00
Sale: $49.50
Save: 10%
Save: $5.50
Description: One extra high strength dowel pin
Item #: 29601
Condition:
New
Price: $2.50
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
Drop-In Turbocharger
Description: Brand New Turbo. No core charge
650-700HP Rating
100% Drop In
Item #: D06-T642-001
Condition:
New
Price: $2,795.00
Sale: $2,767.05
Save: 1%
Save: $27.95
Drop-In Turbocharger
Description: Brand New Turbo. No core charge
750-800HP Rating
100% Drop In
Recommended injector size of 100% overs to reach max potential.
Item #: D06-T662-001
Condition:
New
Price: $2,895.00
Sale: $2,866.05
Save: 1%
Save: $28.95
Price: $42.99
Item #: DMAX-EOC
Condition:
New
Price: $39.99
Price: $54.25
Item #: DMAX-BFC-6.6LOCK
Condition:
New
Price: $79.99
Price: $158.99
Head Gasket Kit
Description: Includes
Mahle Upper Engine Gasket Kit
Mahle Grade C Head Gaskets
DogBone Head Studs
Item #: DogBone-L5P-HGK-STUDS
Condition:
New
Price: $999.00
Sale: $899.10
Save: 10%
Save: $99.90
Price: $59.99
Sale: $53.99
Save: 10%
Save: $6.00
Limited Supply: Only 8 Left!
Price: $20.95
Sale: $18.86
Save: 10%
Save: $2.09
Description: Same tensile strength as ARP, at a more affordable price.
Item #: DogBone-HSK-17D
Condition:
New
Limited Supply: Only 5 Left!
Price: $419.00
Sale: $377.10
Save: 10%
Save: $41.90
Cap for L5P Intake Horn
Description: Fits L5P Intake Horn PCV Provision
Item #: DogBone-7/8-L5P-CAP-KIT
Condition:
New
Price: $17.89
Sale: $16.10
Save: 10%
Save: $1.79
L5P Coolant Cap Kit
Description: Replacement for Cheap Vacuum Plugs in 'Fix Kits'
Item #: DogBone-1/4-L5P-COOLANT-CAP-KIT
Condition:
New
Price: $8.49
Sale: $7.64
Save: 10%
Save: $0.85
Description: -M8-1.25 thread size, 30mm thread length
-220+ KPSI tensile strength
-12-point bolt head
-Black oxide finish
-Lube Pack
Item #: DogBone-UPBK-L5P
Condition:
New
Price: $23.99
Sale: $21.59
Save: 10%
Save: $2.40
Fuel Injector
Item #: DDP L5P-100
Condition:
New
Price: $3,850.00
Sale: $3,108.88
Save: 19%
Save: $741.12
Fuel Injector
Item #: DDP L5P-50
Condition:
New
Price: $3,650.00
Sale: $2,947.38
Save: 19%
Save: $702.62
Fuel Injector
Item #: DDP L5P-STK
Condition:
New
Price: $365.00
Sale: $294.74
Save: 19%
Save: $70.26
Description: In-vehicle ECM unlock
Adds up to 150hp/350tq to the tires
Monitor displays important data like Soot, Miles Since Last Regen, EGT's, Boost and Fluid Temperatures
Economy (75hp/150tq), Towing...More Details »
Item #: 85400-262
Condition:
New
Price: $849.95
Sale: $764.96
Save: 10%
Save: $84.99
Description: Exergy 17-19 L5P Duramax New 30% Over Injector (Set of 8)
Item #: E02 10706
Condition:
New
Price: $3,904.00
Description: Exergy 17-19 L5P Duramax New 60% Over Injector (Set of 8)
Item #: E02 10708
Condition:
New
Price: $4,120.00
Description: Exergy 2016+ GM 2.8L Duramax New Injector - 100% Over
Item #: E02 10810
Condition:
New
Price: $2,692.00
Description: Exergy 2016+ GM 2.8L Duramax New Injector - 30% Over
Item #: E02 10806
Condition:
New
Price: $2,404.00
Description: Exergy 2016+ GM 2.8L Duramax New Injector - 60% Over
Item #: E02 10808
Condition:
New
Price: $2,356.00
Description: Exergy 2017+ L5P Stock Replacement Injector
Item #: E02 10701
Condition:
New
Price: $2,400.00
Description: Exergy 2017+ LP5 Duramax New 100% Over Injector (Set of 8)
Item #: E02 10710
Condition:
New
Price: $4,440.00
Price: $63.00
Dedicated Fuel Systems
Item #: TSC13180F140G
Condition:
New
Price: $841.05
Sale: $719.10
Save: 14%
Save: $121.95
Dedicated Fuel Systems
Item #: DIFSL5P1001
Condition:
New
Price: $504.21
Sale: $431.10
Save: 14%
Save: $73.11
Dedicated Fuel Systems
Item #: TSC13250F220G
Condition:
New
Price: $893.68
Sale: $764.10
Save: 14%
Save: $129.58
Dedicated Fuel Systems
Item #: TSC13290F240G
Condition:
New
Price: $946.32
Sale: $809.10
Save: 15%
Save: $137.22
Dedicated Fuel Systems
Item #: TSC14140F110G
Condition:
New
Price: $893.68
Sale: $764.10
Save: 14%
Save: $129.58
Air Suspension Helper Spring
Description: Kit comes with commercial grade air springs, upper and lower brackets that are industrial coated to prevent rust, DOT rated tubing, Automotive standard hardware and fittings, compressor, analog...More Details »
Item #: 2825
Condition:
New
Price: $1,311.73
Air Suspension Helper Spring
Description: 224CZ 3/4 OFF BNCTR
Item #: 6401
Condition:
New
Price: $217.79
Air Suspension Helper Spring
Description: Note: Do not exceed the vehicles GVWR. Fits: GM Silverado/Sierra 2500/3500HD (2WD/4WD)
Item #: 2860
Condition:
New
Price: $1,470.61
No Image Available
Suspension Leveling Kit
Description: RED Label Ride Rite Extreme Duty Air Spring Kit
Item #: 2709
Condition:
New
Price: $987.38
Suspension Leveling Kit
Description: Ride-Rite Air Helper Spring Kit Rear Incl. Brackets Air Helper Springs Hardware Air Line And Inflation Valves No Drilling Required
Item #: 2613
Condition:
New
Price: $866.80
Item #: FPE-TL-L5P-1719
Condition:
New
Price: $329.99
Sale: $280.49
Save: 15%
Save: $49.50
Price: $512.54
Sale: $435.66
Save: 15%
Save: $76.88
Item #: FPE-DUR-S2-PROD
Condition:
New
Price: $490.19
Sale: $416.66
Save: 15%
Save: $73.53
Price: $21.95
Sale: $18.66
Save: 15%
Save: $3.29
Pigtail
Item #: FPE-HAR-CUMM-ALT-0722
Condition:
New
Price: $20.99
Sale: $17.84
Save: 15%
Save: $3.15
Item #: FPE-HAR-DMAX-FAN-L5P
Condition:
New
Price: $45.99
Sale: $39.09
Save: 15%
Save: $6.90
Description: -New Valves
-New Valve Guides
-New Valve Springs
-New Valve Seals
No Core Charge
Item #: FPE-61-10014-D
Condition:
New
Price: $1,099.00
Description: -New Valves
-New Valve Guides
-New Valve Springs
-New Valve Seals
No Core Charge
Item #: FPE-61-10014-P
Condition:
New
Price: $1,099.00
Item #: FPE-HAR-GM-LCT-SEAL
Condition:
New
Price: $22.99
Sale: $19.54
Save: 15%
Save: $3.45
Item #: FPE-HAR-GM-LCT-SEAL-7P
Condition:
New
Price: $139.99
Sale: $118.99
Save: 15%
Save: $21.00
Description: 2017-2019 L5P Fuel Filter Upgrade Kit For Short and Long Bed applications as well as 2020-2024 Crew Cab Long Bed applications.
Item #: FPE-L5P-FFBA-1719
Condition:
New
Price: $229.00
Sale: $194.65
Save: 15%
Save: $34.35
Item #: FPE-HAR-MU-PT-7
Condition:
New
Price: $28.99
Sale: $24.64
Save: 15%
Save: $4.35
Item #: FPE-L5P-MAP-SPR
Condition:
New
Price: $68.99
Sale: $58.64
Save: 15%
Save: $10.35
Item #: FPE-HAR-MU-PT-5
Condition:
New
Price: $19.99
Sale: $16.99
Save: 15%
Save: $3.00
Item #: FPE-HAR-L5P-INJ-PT-4P
Condition:
New
Price: $179.99
Sale: $152.99
Save: 15%
Save: $27.00