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UnderDog Diesel » 2021, Silverado 1500
Products for:
- Year: 2021
- Model: Silverado 1500
View Universal items for: 2021 Silverado 1500
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Engine Oil Pan
Item #: 114052201
Condition:
New
Price: $17.99
Air Inlet Elbow
Item #: 115020370
Condition:
New
Price: $395.99
Air Inlet Elbow
Item #: 115020360
Condition:
New
Price: $395.99
Description: Trucks equipped with factory rear height sensors require additional part number 88-31190-1.
Not compatible with ZR2 option.
If AT4/Trail Boss or if vehicle is lifted in rear, add spacer kit...More Details »
Item #: 88-31190
Condition:
New
Price: $499.95
Suspension Lift Kit
Description: Big Lift Kit 4 in. Lift
Item #: 44-39420
Condition:
New
Price: $2,299.95
Suspension Lift Kit
Description: Big Lift Kit 6 in. Lift
Item #: 44-39615
Condition:
New
Price: $2,399.95
![ReadyLift - ReadyLift Big Lift Kit 6 in. Lift [6 in. + 2 in.] For AT4 And Trail Boss - 44-39620](https://underdog-diesel.com/images/T198667124.jpeg)
Suspension Lift Kit
Description: Big Lift Kit 6 in. Lift [6 in. + 2 in.] For AT4 And Trail Boss
Item #: 44-39620
Condition:
New
Price: $2,799.95
Suspension Lift Kit
Description: Big Lift Kit 8 in. Lift w/ARC
Item #: 44-39810
Condition:
New
Price: $2,799.95
Suspension Lift Kit
Description: Big Lift Kit w/Shocks 6 in. Lift Rear Falcon 1.1 Monotube Shocks
Item #: 44-39605
Condition:
New
Price: $2,599.95
Suspension Lift Kit
Description: Big Lift Kit w/Shocks 6 in. Lift Rear w/Bilstein Shocks
Item #: 44-3960
Condition:
New
Price: $2,399.95
Suspension Lift Kit
Description: Big Lift Kit w/Shocks 6 in. Lift w/Rear Bilstein Shocks
Item #: 44-3965
Condition:
New
Price: $2,499.95
Suspension Lift Kit
Description: Big Lift Kit w/Shocks 6 in. Lift w/Rear Falcon 1.1 Monotube Shocks
Item #: 44-39600
Condition:
New
Price: $2,449.95
Suspension Lift Kit
Description: Big Lift Kit w/Shocks 8 in. Lift w/Upper Control Arms And Rear Bilstein Shocks
Item #: 44-3985
Condition:
New
Price: $2,899.95
Suspension Lift Kit
Description: Big Lift Kit w/Shocks 8 in. Lift w/Upper Control Arms And Rear Bilstein Shocks 4 WD
Item #: 44-3980
Condition:
New
Price: $2,799.95
Suspension Lift Kit
Description: Big Lift Kit w/Shocks 8 in. Lift w/Upper Control Arms And Rear Falcon 1.1 Monotube Shocks
Item #: 44-39805
Condition:
New
Price: $2,999.95
Suspension Lift Kit
Description: Big Lift Kit w/Shocks 8 in. Lift w/Upper Control Arms Rear Falcon 1.1 Monotube Shocks
Item #: 44-39800
Condition:
New
Price: $2,849.95
Suspension Control Arm
Description: Control Arm Upper SST
Item #: 67-3940
Condition:
New
Price: $439.95
Suspension Control Arm
Description: Control Arm Upper w/Adaptative Ride Control
Item #: 67-39401
Condition:
New
Price: $439.95
Differential Drop Spacer Kit
Description: Differential Drop Spacers Elevation Service Pack
Item #: 67-39610
Condition:
New
Price: $179.95
Suspension Leveling Kit
Description: Leveling Kit 1.5 in. Lift Front Upper Strut Spacer
Item #: 66-39150
Condition:
New
Price: $139.95
Suspension Leveling Kit
Description: Leveling Kit 1.75 in. Front
Item #: 66-3921
Condition:
New
Price: $499.95
Suspension Lift Kit
Description: Lift Kit 6 in. Lift w/ARC
Item #: 44-39610
Condition:
New
Price: $2,249.95
Suspension Leaf Spring Block Kit
Description: Rear Block Kit 5 in.
Item #: 26-3950
Condition:
New
Price: $209.95
Suspension Leaf Spring Block Kit
Description: Rear Block Kit 6 in. Blocks Mono-Leaf
Item #: 26-39550
Condition:
New
Price: $199.95
Suspension Shock Absorber Extender
Description: Shock Extension Bracket Rear Pair Fits: 1999-16 GM/CHEVY 1500 REAR SHOCK EXTENSION BRACKETS
Item #: 67-3809
Condition:
New
Price: $59.95
Suspension Lift Kit
Description: SST® Lift Kit 2 in. Front Lift 1 in. Rear Lift
Item #: 69-3920
Condition:
New
Price: $659.95
Suspension Lift Kit
Description: SST® Lift Kit 4 in. Lift
Item #: 69-39400
Condition:
New
Price: $899.95
No Image Available
Leaf Spring Axle U-Bolt Kit
Description: U-Bolt Kit Rear For MonoLeaf Applications Only
Item #: 67-39530UB
Condition:
New
Price: $69.95
![ReadyLift - ReadyLift Wheel Spacer 6 Lug 6MM [6x139.7] - SPC6MM6139GM106](https://underdog-diesel.com/images/T198667460.jpeg)
Wheel Spacer
Description: Wheel Spacer 6 Lug 6MM [6x139.7]
Item #: SPC6MM6139GM106
Condition:
New
Price: $99.95
Item #: 83-1002
Condition:
New
Price: $129.00
Cold Air Intake
Item #: 75-5137-1
Condition:
New
Price: $349.00
Cold Air Intake
Item #: 75-5137-1D
Condition:
New
Price: $349.00
Item #: 83-1003
Condition:
New
Price: $129.00
Fuel Tank
Description: Extra Large Midship Tank 43 Gallon
Item #: 7010519
Condition:
New
Price: $1,300.55
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: -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: $51.00
Sale: $49.47
Save: 3%
Save: $1.53
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: $51.00
Sale: $49.47
Save: 3%
Save: $1.53
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