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UnderDog Diesel » 2025, GMC, Sierra 2500
Products for:
- Year: 2025
- Make: GMC
- Model: Sierra 2500
View Universal items for: 2025 GMC Sierra 2500
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Items 1-60 of 60
Description: Will NOT fit Pro Model
Item #: UDD-2024-52MM-Mount-D
Condition:
New
Price: $85.00
Description: Will NOT fit Pro Model
Item #: UDD-2024-52MM-Mount-S
Condition:
New
Price: $65.00
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: $129.00
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: $69.00
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
Price: $69.00
Cap for L5P Intake Horn
Description: Fits L5P Intake Horn PCV Provision
Item #: DogBone-7/8-L5P-CAP-KIT
Condition:
New
Price: $17.89
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
Description: Fits; 2001-2023 Chevrolet and GMC 1500HD / 2500 / 2500HD / 3500 / 3500HD 2WD/4WD trucks, 2001-2013 Chevy and GMC 2500 2WD/4WD SUVs and Hummer H2, H2 SUTs. 1999-2018 Chevy and GMC 1500 6 Lug Trucks
Item #: KR86325
Condition:
New
Price: $19.99
Sale: $18.99
Save: 5%
Save: $1.00
Description: Fits; 2011-2025 Chevy/GMC 2500/3500 HD *WITHOUT FACTORY TABS
Item #: KRSS15
Condition:
New
Price: $99.99
Sale: $94.99
Save: 5%
Save: $5.00
Description: Fits; 1988-Current Chevy/GMC 1500HD/2500HD/3500 TRUCKS and Much More, This is a popular Bolt on Style Ball Joint for many aftermarket applications Including Off-Road Jeep and Toyota Fitment. *GM...More Details »
Item #: KR6292
Condition:
New
Price: $59.99
Sale: $56.99
Save: 5%
Save: $3.00
Description: Fits; 2011-2025 Chevrolet and GMC 2500HD/3500 Trucks, Also 2015-2018 Chevy and GMC Canyon / Colorado Trucks.
Item #: KR86376
Condition:
New
Price: $64.99
Sale: $61.74
Save: 5%
Save: $3.25
Description: Part# KRSM10-50 (50mm Reservoir) Fits: Rad Flo, (King 2.5 OEM Series w/ 2" reservoir)(CALL FOR FITMENT on Bilstein B8 5160)
Fits; 2011+ Chevy/GMC 2500/3500 HD
*SOLD AS A PAIR
Item #: KRSM11-50
Condition:
New
Price: $179.99
Sale: $170.99
Save: 5%
Save: $9.00
Description: Part# KRSM11-55 (55mm Reservoir) Fits: Fox 2.0 Performance Series,
Fits; 2011+ Chevy/GMC 2500/3500 HD
*SOLD AS A PAIR
Item #: KRSM11-55
Condition:
New
Price: $179.99
Sale: $170.99
Save: 5%
Save: $9.00
Description: Part# KRSM11-65 (65mm Reservoir) Fits: Fox 2.5 Race Series, Vertex 2.5, Elka 2.5
Fits; 2011+ Chevy/GMC 2500/3500 HD
*SOLD AS A PAIR
Item #: KRSM11-65
Condition:
New
Price: $179.99
Sale: $170.99
Save: 5%
Save: $9.00
Description: Fits; 2011-2025 Chevrolet and GMC 2500HD/3500 Trucks.
Item #: 11KDG018
Condition:
New
Price: $299.99
Sale: $284.99
Save: 5%
Save: $15.00
Description: Fits; 2011-2025 2500/3500 GM HD Truck
Item #: KR280
Condition:
New
Price: $239.99
Sale: $227.99
Save: 5%
Save: $12.00
Description: Fits; 2011-2025 Chevy/GMC 2500/3500 HD TRUCK
Item #: KRISP11
Condition:
New
Price: $549.99
Sale: $522.49
Save: 5%
Save: $27.50
Description: Fits; 2011-2025 Chevy/GMC 2500HD/3500 GM Trucks
Item #: KR419A
Condition:
New
Price: $239.99
Sale: $227.99
Save: 5%
Save: $12.00
Description: Fits; 2011-2025 2500/3500 GM HD Truck
Item #: KRTR11
Condition:
New
Price: $379.99
Sale: $360.99
Save: 5%
Save: $19.00
Description: Fits; 2011-2025 GM HD Trucks (2500HD/3500)
***SRW ONLY (Single Rear Wheel)***
Item #: KRP0175
Condition:
New
Price: $9.99
Sale: $9.49
Save: 5%
Save: $0.50
Description: Fits; 2011-2025 Chevy/GMC 2500/3500 HD
Item #: KRGUSSET11
Condition:
New
Price: $89.99
Sale: $85.49
Save: 5%
Save: $4.50
Description: Fits; 2020-2025 CHEVY/GMC 2500/3500 HD
Item #: KRKEY20
Condition:
New
Price: $119.99
Sale: $113.99
Save: 5%
Save: $6.00
Description: Fits; 2011-2025 GM HD Trucks 2500HD/3500
Item #: KR0232
Condition:
New
Price: $59.99
Sale: $56.99
Save: 5%
Save: $3.00
Description: Fits; 2011-2025 CHEVY/GMC 2500/3500 HD
Will NOT fit on 2024+ AT4X & ZR2 trucks equipped with DSSV shocks.
Item #: KRSE11
Condition:
New
Price: $89.99
Sale: $85.49
Save: 5%
Save: $4.50
Description: Fits; 2011-2025 GMC/Chevrolet 2500HD/3500 Trucks. Also 2007-2018 1500 Silverado, Sierra. And 2007-2019; Escalade, Avalanche, Suburban, Tahoe, Yukon, 6 Lug Trucks.
Item #: KRSLV11
Condition:
New
Price: $34.99
Sale: $33.24
Save: 5%
Save: $1.75
Description: Fits; 2011-2025 Chevy/GMC 2500/3500 HD
Item #: KR11SSU78
Condition:
New
Price: $599.99
Sale: $569.99
Save: 5%
Save: $30.00
Description: Fits; 2011-2025 Chevy/GMC 2500/3500 HD
(Factory Taper Size)
Item #: KRCLP11
Condition:
New
Price: $799.99
Sale: $759.99
Save: 5%
Save: $40.00
Description: Fits; 2020-2025 Chevy/GMC 2500/3500 HD
Will NOT fit on AT4X & ZR2 trucks equipped with DSSV shocks.
Item #: KR20STAGE1
Condition:
New
Price: $169.99
Sale: $161.49
Save: 5%
Save: $8.50
Description: Fits; 2020-2025 Chevy/GMC 2500/3500 HD
Will NOT fit on AT4X & ZR2 trucks equipped with DSSV shocks.
Item #: KR20STAGE2
Condition:
New
Price: $699.99
Sale: $664.99
Save: 5%
Save: $35.00
Description: Fits; 2020-2025 Chevy/GMC 2500/3500 HD
Will NOT fit on AT4X & ZR2 trucks equipped with DSSV shocks.
Item #: KR20STAGE3BIL
Condition:
New
Price: $999.99
Sale: $949.99
Save: 5%
Save: $50.00
Description: Fits; 2020-2025 Chevy/GMC 2500/3500 HD
Will NOT fit on AT4X & ZR2 trucks equipped with DSSV shocks.
Item #: KR20STAGE3FOX
Condition:
New
Price: $1,399.99
Sale: $1,329.99
Save: 5%
Save: $70.00
Description: Fits; 2020-2025 Chevy/GMC 2500/3500 HD
Will NOT fit on AT4X & ZR2 trucks equipped with DSSV shocks.
Item #: KR20STAGE4FOX
Condition:
New
Price: $1,899.99
Description: Fits; 2020-2025 Chevy/GMC 2500HD/3500 TRUCKS and Much More
Item #: KRSBEL20
Condition:
New
Price: $159.99
Sale: $151.99
Save: 5%
Save: $8.00
Description: Fits; 2020-2024 Chevy/GMC 2500HD/3500 TRUCKS with lifts higher than 6"
Item #: KRSBEL1425
Condition:
New
Price: $169.99
Sale: $161.49
Save: 5%
Save: $8.50
Description: Fits; 2020-2025 Chevy/GMC 2500HD/3500 TRUCKS and Much More
Item #: KRSBEL26
Condition:
New
Price: $169.99
Sale: $161.49
Save: 5%
Save: $8.50
Description: Fits; 2011-2025 CHEVY/GMC 2500/3500 HD
Item #: ULTIMATE11
Condition:
New
Price: $1,499.99
Sale: $1,424.99
Save: 5%
Save: $75.00
Description: Fits; 2011-2025 Chevy/GMC Truck 2500HD/3500 With Aftermarket Bolt on Ball Joint Style Control Arms ONLY!
Item #: 1119BJPACK-2
Condition:
New
Price: $199.99
Sale: $189.99
Save: 5%
Save: $10.00
Description: Fits; 2011-2024 Kryptonite and Cognito Upper Control arms ONLY!
*Will not fit FTS Arms, or Stock control arms.
Item #: KRBUCA11
Condition:
New
Price: $39.99
Sale: $37.99
Save: 5%
Save: $2.00
Description: Fits; 2020-2025 Chevy/GMC 2500/3500 HD Truck
Item #: KRUCA20
Condition:
New
Price: $599.99
Sale: $569.99
Save: 5%
Save: $30.00
Description: Fits; 2011-2025 Chevy/GMC 2500/3500 HD Truck
Item #: KR1025
Condition:
New
Price: $9.99
Sale: $9.49
Save: 5%
Save: $0.50
Description: Fits; Most all 8 Lug GM Trucks (Front end) from 2011-2024
Item #: KRP0179
Condition:
New
Price: $12.99
Sale: $12.34
Save: 5%
Save: $0.65
Description: This aluminum panel cleanly finishes the bottom opening of your 2011-2014 Chevy Silverado HD truck bumper when the lower plastic air dam has been removed.
Allows for installation of more...More Details »
Item #: WCF100368
Condition:
New
Fine Texture Black and Raw in stock and ships in 3-5 business days.10-15 business day lead time on other colors.
Price: $215.00
Sale: $208.55
Save: 3%
Save: $6.45
Description: Passenger Side Up Pipe
Driver Side Up Pipe
Up Pipe Gaskets (4)
Flows 26% Better than OEM
Made in USA
Item #: WCF100624
Condition:
New
In Stock. Ships in 3-5 business days.
This product cannot ship to California.
Price: $689.00
Sale: $668.33
Save: 3%
Save: $20.67
Description: CNC Machined Billet Aluminum Plug
Black anodized finish with engraved logo
NO Tuning required, bolt on!
Will fit on stock truck no other modifications or upgrades necessary!
Item #: WCF100473
Condition:
New
In Stock. Ships in 3-5 business days.
Price: $31.00
Sale: $30.07
Save: 3%
Save: $0.93
Description: Fully TIG Welded, CNC machined billet steel exhaust manifolds
Finished in Black Ceramic Coat rated for 1800ºF
Includes new gaskets for manifold to cylinder head, EGR flange, and manifold...More Details »
Item #: WCF100373
Condition:
New
In Stock. Ships in 3-5 business days.
This product cannot ship to California.
Price: $1,574.00
Sale: $1,526.78
Save: 3%
Save: $47.22
Description: ARP Up Pipe Bolt kit for 2017+ Duramax. 12 Washers and Bolts for installing both up pipes. Includes ARP Lube
Item #: WCF100199
Condition:
New
In Stock. Ships in 3-5 business days.
Price: $60.00
Sale: $58.20
Save: 3%
Save: $1.80
Item #: WCF100822
Condition:
New
In Stock. Ships in 3-5 business days.
Price: $153.00
Sale: $148.41
Save: 3%
Save: $4.59
Description: 3.5" Steel Down Pipe
High Temp Black Ceramic Coat Finish
Heat Wrap Pre-installed
Catalyst Back - Emissions Compliant
NO TUNING REQUIRED!
Made in USA
Item #: WCF100129
Condition:
New
In Stock. Ships in 3-5 business days.
This product cannot ship to California.
Price: $335.00
Sale: $324.95
Save: 3%
Save: $10.05
Wehrli Custom Fabrication 2020-2024 Duramax Traction Bar Brackets & Hardware Install Kit - WCF100831
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 #: WCF100831
Condition:
New
In Stock. Ships in 3-5 business days.
Price: $274.00
Sale: $265.78
Save: 3%
Save: $8.22
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 #: WCF100459
Condition:
New
Fine Texture Black in stock and ships in 3-5 business days. 10-15 business day lead time on other colors.
Price: $289.00
Sale: $280.33
Save: 3%
Save: $8.67
Description: Qty. 4 CNC Machined Billet Aluminum Marker Light Delete Plates
High quality mounting hardware
Marker Light Harness Dummy Plugs
Available with or without machined WCFab logo in Raw Aluminum...More Details »
Item #: WCF100390, WCF100391, WCF100392, WCF100393
Condition:
New
In Stock. Ships in 3-5 business days.
Price: $249.00
Sale: $241.53
Save: 3%
Save: $7.47
Description: 3.5 in. Cold Side Intercooler Pipe
Incorporated threaded bung to reinstall OEM Intake Temperature Sensor
Durable Powder Coat Finish
Silicone Boot
T-Bolt Clamps
O-Rings
14g Mandrel...More Details »
Item #: WCF100381
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: $374.00
Sale: $362.78
Save: 3%
Save: $11.22
Description: 4" Intake Pipe
Air Box & Lid Constructed of 10G Aluminum Sheet
Dry Air Filter
Outerwear's Pre-Filter Cover
Hardware
Seal for Connection to Functional Ram Air Port on Hood
High...More Details »
Item #: WCF100702
Condition:
New
This product cannot ship to California.
Price: $629.00
Sale: $610.13
Save: 3%
Save: $18.87
Description: 4" Intake Pipe
3 1/2" Intake Horn
Air Box & Lid Constructed of 10G Aluminum Sheet
Dry Air Filter
Outerwear's Pre-Filter Cover
Hardware
Seal for Connection to Functional Ram Air...More Details »
Item #: WCF100684
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: $835.00
Sale: $809.95
Save: 3%
Save: $25.05
Description: 4" Intake Pipe
Silicone Hump and Straight Boots
T-bolt Clamps
Powder coating
NO Tuning required, bolt on!
Will fit on stock truck no other modifications or upgrades necessary! More Details »
Item #: WCF100720
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: $225.00
Sale: $218.25
Save: 3%
Save: $6.75
Description: Coolant Tank
Low Coolant Level Sensor
Black Anodized Billet Aluminum Cap
Over Flow Hose
Coolant Level Sight Glass
Installation hardware
Powder Coating More Details »
Item #: WCF100268
Condition:
New
WCFab Red with Standard Brushed Tag, WCFab Grey 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: $525.00
Sale: $509.25
Save: 3%
Save: $15.75
Description: 3 in. Hot Side Intercooler Pipe
3.5 in. Cold Side Intercooler Pipe
CNC Machined Flange and black anodized billet aluminum adapter with Double O-Rings provides an improved sealing surface to...More Details »
Item #: WCF100410
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: $679.00
Sale: $658.63
Save: 3%
Save: $20.37
Description: 4 in. Aluminum Intake Pipe
3.5 in. Intake Horn with PCV Port and Surge Ring
Air box enclosure with dry filter assembly and Outerwears pre-filter cover
Installation hardware, 4 in....More Details »
Item #: WCF100414
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: $1,515.00
Sale: $1,469.55
Save: 3%
Save: $45.45
Description: 4 in. Aluminum Intake Pipe
3.5 in. Intake Horn with PCV Port and Surge Ring
Air box enclosure with dry filter assembly and Outerwears pre-filter cover
Installation hardware, 4 in....More Details »
Item #: WCF100418
Condition:
New
WCFab Red, Candy Teal, 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 California.
Price: $1,829.00
Sale: $1,774.13
Save: 3%
Save: $54.87
Description: Coolant Pipe
Silicone Boots
T-Bolt Clamps
Powder Coating
Item #: WCF100541
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.
Price: $168.00
Sale: $162.96
Save: 3%
Save: $5.04
Items 1-60 of 60