2021 GMC Sierra 2500 HD Suspension Shock Absorber Parts

Choose your Submodel for your 2021 GMC Sierra 2500 HD


Showing 1 - 10 of 54 products
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Bilstein
  • B8 5100-Shock Absorber
  • For Front Lifted Height: 1.5"
  • 46mm Monotube Shock Absorber
  • B8 5100
  • Product Attributes:
    • California Proposition 65: Warning: Cancer & Reproductive Harm - Www.p65warnings.ca.gov
    • Internal Design: Monotube
    • Collapsed Length:
      • 14.060 In.
      • 357mm
    • Upper Mount Type: Crossbar
    • Extended Length (MM): 468.0
    • Reservoir: No
    • Body Inside Diameter: 46mm
    • WARNING CA Proposition 65: Yes
    • Body Design: Smooth Body (non-coilover)
    • Spring Seat Included: No
    • WARNING CA Proposition 65 Message: Warning: Cancer & Reproductive Harm - Www.p65warnings.ca.gov
    • Reservoir Included: No
    • Collapsed Length (MM): 357.0
    • Boot Included: Black Bellows
    • Lower Mount Type: Clevis
    • Adjustable Damping: Non-adjustable
    • Extended Length:
      • 18.430 In.
      • 468mm
    • Body Diameter (ID): 46mm
  • Features:
    • Bilstein B8 5100 Shock Absorbers
    • Gas Pressure Construction
    • Improved Ride And Handling
    • Added Traction And Enhanced Stability
    • Increased Durability And Performance
    • Vehicle Specific Ride Tuning
  • Bilstein B8 5100 shock absorbers are designed as a direct fit solution for lifted trucks and SUV's. These shock absorbers feature a monotube design which provides consistent fade free performance. B8 5100 shock absorbers utilize a unique, velocity sensitive, digressive piston which reacts to changing road conditions. All B8 5100 shock absorbers are tuned for each specific application to assure optimal performance is achieved. B8 5100 shock absorbers offer a significant improvement in ride quality, handling, and comfort.
  • Suggested Purchase Quantity: 2
    • Most jobs typically require 2 of this item.

This Part Fits the Following OEM/Substitute Numbers:
24-196451

Additional Fitment Information:
Vehicle Position Sub Model
2021 - GMC Sierra 2500 HD Front AT4

Bilstein
  • B6 4600-Shock Absorber
  • 46mm Monotube Shock Absorber
  • B6 4600
  • Product Attributes:
    • California Proposition 65: Warning: Cancer & Reproductive Harm - Www.p65warnings.ca.gov
    • Internal Design: Monotube
    • Upper Mount Type: Eye 14.4mm
    • Reservoir: No
    • WARNING CA Proposition 65: Yes
    • Spring Seat Included: No
    • WARNING CA Proposition 65 Message: Warning: Cancer & Reproductive Harm - Www.p65warnings.ca.gov
    • Reservoir Included: No
    • Boot Included: Blue Straight
    • Lower Mount Type: Eye 14.4mm
    • Adjustable Damping: Non-adjustable
    • Adjustable Length: No
  • Features:
    • Bilstein 4600 Series
    • Monotube Gas Pressure Construction
    • Improved Ride And Handling
    • Added Traction And Enhanced Stability
    • Increased Performance Even When Towing Heavy Loads
    • Vehicle Specific Ride Tuning
  • Bilstein B6 4600 shock absorbers are designed as a direct fit upgrade to OE shock absorbers on stock height light trucks and SUV's. These shock absorbers feature a monotube design which provides consistent fade free performance. B6 4600 shock absorbers utilize a unique, velocity sensitive, digressive piston which reacts to changing road conditions. All B6 4600 shock absorbers are tuned for each specific application to ensure optimal performance is achieved. B6 4600 shock absorbers offer a significant improvement in ride quality, handling, and comfort.
  • Suggested Purchase Quantity: 2
    • Most jobs typically require 2 of this item.

This Part Fits the Following OEM/Substitute Numbers:
20906289, 20906290, 20906291, 20906292, 20906293, 22808247, 22990470, 22990471, 22990472, 22990473, 22990474, 22990475, 22990476, 23315261, 23315262, 23315263, 23315264, 23315265...VIEW MORE

Additional Fitment Information:
Vehicle Position Sub Model
2021 - GMC Sierra 2500 HD Rear AT4

Bilstein
  • B6 4600-Shock Absorber
  • 46mm Monotube Shock Absorber
  • B6 4600
  • Product Attributes:
    • California Proposition 65: Warning: Cancer & Reproductive Harm - Www.p65warnings.ca.gov
    • Internal Design: Monotube
    • Upper Mount Type: Bar Pin
    • Reservoir: No
    • WARNING CA Proposition 65: Yes
    • Spring Seat Included: No
    • WARNING CA Proposition 65 Message: Warning: Cancer & Reproductive Harm - Www.p65warnings.ca.gov
    • Reservoir Included: No
    • Boot Included: Blue Straight
    • Lower Mount Type: Clevis
    • Adjustable Damping: Non-adjustable
    • Adjustable Length: No
  • Features:
    • Bilstein 4600 Series
    • Monotube Gas Pressure Construction
    • Improved Ride And Handling
    • Added Traction And Enhanced Stability
    • Increased Performance Even When Towing Heavy Loads
    • Vehicle Specific Ride Tuning
  • Bilstein B6 4600 shock absorbers are designed as a direct fit upgrade to OE shock absorbers on stock height light trucks and SUV's. These shock absorbers feature a monotube design which provides consistent fade free performance. B6 4600 shock absorbers utilize a unique, velocity sensitive, digressive piston which reacts to changing road conditions. All B6 4600 shock absorbers are tuned for each specific application to ensure optimal performance is achieved. B6 4600 shock absorbers offer a significant improvement in ride quality, handling, and comfort.
  • Suggested Purchase Quantity: 2
    • Most jobs typically require 2 of this item.

This Part Fits the Following OEM/Substitute Numbers:
20908412, 20908414, 20908415, 22990466, 22993218, 22993219, 23315258, 23315259, 23315260, 24196437, 980-24-963, RS5379, RS7377, RS999377

Additional Fitment Information:
Vehicle Position Sub Model
2021 - GMC Sierra 2500 HD Front AT4

Bilstein
  • B8 5100-Shock Absorber
  • For Front Lifted Height: 4-6" Stock mounting points only Not compatible with lower control arm torsion bar relocation bracket
  • 46mm Monotube Shock Absorber
  • B8 5100
  • Product Attributes:
    • California Proposition 65: Warning: Cancer & Reproductive Harm - Www.p65warnings.ca.gov
    • Internal Design: Monotube
    • Collapsed Length:
      • 15.980 In.
      • 406mm
    • Upper Mount Type: Bar Pin
    • Extended Length (MM): 615.5
    • Reservoir: No
    • Body Inside Diameter: 46mm
    • WARNING CA Proposition 65: Yes
    • Body Design: Smooth Body (non-coilover)
    • Spring Seat Included: No
    • WARNING CA Proposition 65 Message: Warning: Cancer & Reproductive Harm - Www.p65warnings.ca.gov
    • Reservoir Included: No
    • Collapsed Length (MM): 406.0
    • Boot Included: Black Bellows
    • Lower Mount Type: Clevis
    • Adjustable Damping: Non-adjustable
    • Extended Length:
      • 24.230 In.
      • 615.5mm
    • Body Diameter (ID): 46mm
  • Features:
    • Bilstein 5100 Series
    • Monotube Gas Pressure Construction
    • Designed For Consistent Fade-Free Performance
    • Self-Adjusting Deflective Disc Valving
    • High-Flow Piston Reduces Harshness
    • Available In Stem-To-Eye/Eye-To-Eye Mounting Configurations
    • Zinc Coating For Resistance To Off-Road Elements
    • Custom Valving Available
    • Factory Rebuildable
    • Made In The USA
  • Bilstein B8 5100 shock absorbers are designed as a direct fit solution for lifted trucks and SUV's. These shock absorbers feature a monotube design which provides consistent fade free performance. B8 5100 shock absorbers utilize a unique, velocity sensitive, digressive piston which reacts to changing road conditions. All B8 5100 shock absorbers are tuned for each specific application to assure optimal performance is achieved. B8 5100 shock absorbers offer a significant improvement in ride quality, handling, and comfort.
  • Suggested Purchase Quantity: 2
    • Most jobs typically require 2 of this item.

This Part Fits the Following OEM/Substitute Numbers:
24218023

Additional Fitment Information:
Vehicle Position Sub Model
2021 - GMC Sierra 2500 HD Front AT4

Skyjacker
  • 20.14 Extended; 13.53 Collapsed; For 0-3.5 in. Lift; w/0 - 3.5 in. Lift
  • M95 Performance Monotube Shock Absorber

Additional Fitment Information:
Vehicle Block CC Position Fuel Type Engine CID
2021 - GMC Sierra 2500 HD V 6571 Front FLEX 8 Cyl 6.6L 401

Skyjacker
  • ADX 2.0 Adventure Series Remote Reservoir Aluminum Monotube Shock
  • Extended Length 28.60 in.; Collapsed Length 17.49 in.; Shock Stroke 11.11 in.; w/3 - 3.5 in. Lift
  • ADX 2.0 REMOTE RESERVOIR
  • ADX 2.0 Adventure Series Remote Reservoir Monotube Shock
  • Product Attributes:
    • Shock Stroke: 11.110 In.
    • WARNING CA Proposition 65: Yes
    • Extended Length: 28.600 In.
    • WARNING CA Proposition 65 Message: California Residents- Warning: Cancer And-or Other Reproductive Harm. (for More Information Go To Www.p65warnings.ca.gov)
  • Features:
    • Impact Extruded CNC Machined T6061-T6 Aluminum Monotube
    • Full Displaced Valve System Inspired From Off-Road Racing
    • High Pressure Nitrogen Gas And IFP Technology Performance
    • Factory Set Vehicle Specific Consistent Dampening
    • Cooler Running More Control And Improved Driving Comfort
    • Large 53.5mm OD Aluminum Body With 46mm ID Bore Size
    • Quality Assured 2 Year Warranty
    • ADX 2.0 Smooth Reaction Teflon Banded Piston
    • ADX 2.0 Constant Controlled Resistance Performance
    • ADX 2.0 Has A Unique Clear Anodize Polished Aluminum Finish
    • ADX 2.0 Reacts Quicker To Improve Handling And Stability
    • ADX 2.0 Aluminum Monotube Provides Better Heat Dissipation
  • Skyjacker's ADX 2.0 Adventure Series Remote Reservoir Aluminum Monotube Shocks deliver modern technology in the design with an innovative off-road race-inspired full-displaced valving system. With this highest level of technology development, ADX 2.0 provides consistent dampening, high-end performance, cooler running, more control and improved driving comfort. Skyjacker's ADX 2.0 shocks dampen out (control) the unwanted oscillation motion to improve handling and ride quality. ADX 2.0 will optimize your suspension by keeping your tires in contact with the terrain. Engineered for higher speed applications, remote reservoir shocks still perform at crawl. Truthfully, we actually spend way more time on our daily commutes than we spend on the trails. The commutes are neither smooth surfaces or free of obstacles. Quick starts, up and down acceleration and hard stops are a daily routine. The separate reservoir allows more room in the shock cylinder to increase the oil capacity. The large bore size design reacts quicker and creates the smoothest ride possible. The Teflon banded piston's smooth reaction delivers a superior ride and adds stability on any terrain. Impact extruded CNC machined T6061-T6 aluminum monotube dissipates heat and runs cooler versus traditional steel-bodied shocks. The overall weight of the aluminum body and aluminum remote reservoir setup is lighter too.

Additional Fitment Information:
Vehicle Block CC Position Fuel Type Engine Drive Type CID
2021 - GMC Sierra 2500 HD V 6571 Rear GAS 8 Cyl 6.6L 4WD 401

Skyjacker
  • ADX 2.0 Adventure Series Remote Reservoir Aluminum Monotube Shock
  • Extended Length 29.83 in.; Collapsed Length 17.96 in.; Shock Stroke 11.87 in.; w/4 - 6 in. Lift
  • ADX 2.0 REMOTE RESERVOIR
  • ADX 2.0 Adventure Series Remote Reservoir Monotube Shock
  • Product Attributes:
    • Shock Stroke: 11.870 In.
    • WARNING CA Proposition 65: Yes
    • Extended Length: 29.830 In.
    • WARNING CA Proposition 65 Message: California Residents- Warning: Cancer And-or Other Reproductive Harm. (for More Information Go To Www.p65warnings.ca.gov)
  • Features:
    • Impact Extruded CNC Machined T6061-T6 Aluminum Monotube
    • Full Displaced Valve System Inspired From Off-Road Racing
    • High Pressure Nitrogen Gas And IFP Technology Performance
    • Factory Set Vehicle Specific Consistent Dampening
    • Cooler Running More Control And Improved Driving Comfort
    • Large 53.5mm OD Aluminum Body With 46mm ID Bore Size
    • Quality Assured 2 Year Warranty
    • ADX 2.0 Smooth Reaction Teflon Banded Piston
    • ADX 2.0 Constant Controlled Resistance Performance
    • ADX 2.0 Has A Unique Clear Anodize Polished Aluminum Finish
    • ADX 2.0 Reacts Quicker To Improve Handling And Stability
    • ADX 2.0 Aluminum Monotube Provides Better Heat Dissipation
  • Skyjacker's ADX 2.0 Adventure Series Remote Reservoir Aluminum Monotube Shocks deliver modern technology in the design with an innovative off-road race-inspired full-displaced valving system. With this highest level of technology development, ADX 2.0 provides consistent dampening, high-end performance, cooler running, more control and improved driving comfort. Skyjacker's ADX 2.0 shocks dampen out (control) the unwanted oscillation motion to improve handling and ride quality. ADX 2.0 will optimize your suspension by keeping your tires in contact with the terrain. Engineered for higher speed applications, remote reservoir shocks still perform at crawl. Truthfully, we actually spend way more time on our daily commutes than we spend on the trails. The commutes are neither smooth surfaces or free of obstacles. Quick starts, up and down acceleration and hard stops are a daily routine. The separate reservoir allows more room in the shock cylinder to increase the oil capacity. The large bore size design reacts quicker and creates the smoothest ride possible. The Teflon banded piston's smooth reaction delivers a superior ride and adds stability on any terrain. Impact extruded CNC machined T6061-T6 aluminum monotube dissipates heat and runs cooler versus traditional steel-bodied shocks. The overall weight of the aluminum body and aluminum remote reservoir setup is lighter too.

Additional Fitment Information:
Vehicle Block CC Position Fuel Type Engine Drive Type CID
2021 - GMC Sierra 2500 HD V 6571 Rear GAS 8 Cyl 6.6L 4WD 401

Skyjacker
  • w/Black Boot; 20.14 in. Extended; 13.53 in. Collapsed; w/0 - 3.5 in. Lift
  • BLACK MAX SHOCK W/BLK BOOT
  • Black MAX Shock Absorber
  • Product Attributes:
    • Collapsed Length: 13.530 In.
    • Shock Stroke: 6.610 In.
    • WARNING CA Proposition 65: Yes
    • WARNING CA Proposition 65 Message: California Residents- Warning: Cancer And-or Other Reproductive Harm. (for More Information Go To Www.p65warnings.ca.gov)
  • Features:
    • Advanced Foam-Cell Technology
    • Vehicle Specific Multi-Stage Valving
    • Increased Fluid Capacity for MAX Heat Dissipation
    • 360 Degree Arc Welded End Mounts
    • 180 Degree Directional Mounting
    • Twin Tube Construction
    • Chrome Plated Shaft
    • Sintered Iron Piston
    • Limited Lifetime Warranty
  • Black MAX twin tube shock absorbers have increased fluid capacity and utilize foam-cell technology. When the shock is working hard and gets hot, the foam-cell insert compresses to compensate for oil expansion which maintains consistent MAX performance throughout the operating temperature range of the shock. The foam-cell design also eliminates air inside the shock which allows for mounting in any direction. Arc-welded end mounts and select specific valving give this shock absorber MAX value.

Additional Fitment Information:
Vehicle Block CC Position Fuel Type Engine CID
2021 - GMC Sierra 2500 HD V 6571 Front FLEX 8 Cyl 6.6L 401

Bilstein
  • B8 5100-Shock Absorber
  • For Rear Lifted Height: 0-1"
  • 46mm Monotube Shock Absorber
  • B8 5100
  • Product Attributes:
    • California Proposition 65: Warning: Cancer & Reproductive Harm - Www.p65warnings.ca.gov
    • Internal Design: Monotube
    • Collapsed Length:
      • 16.420 In.
      • 417mm
    • Upper Mount Type: Eye 14.4mm
    • Extended Length (MM): 680.5
    • Reservoir: No
    • Body Inside Diameter: 46mm
    • WARNING CA Proposition 65: Yes
    • Body Design: Smooth Body (non-coilover)
    • Spring Seat Included: No
    • WARNING CA Proposition 65 Message: Warning: Cancer & Reproductive Harm - Www.p65warnings.ca.gov
    • Reservoir Included: No
    • Collapsed Length (MM): 417.0
    • Boot Included: Black Straight
    • Lower Mount Type: Eye 14.4mm
    • Adjustable Damping: Non-adjustable
    • Extended Length:
      • 26.790 In.
      • 680.5mm
    • Body Diameter (ID): 46mm
  • Features:
    • Bilstein 5100 Series
    • Monotube Gas Pressure Construction
    • Designed For Consistent Fade-Free Performance
    • Self-Adjusting Deflective Disc Valving
    • High-Flow Piston Reduces Harshness
    • Available In Stem-To-Eye/Eye-To-Eye Mounting Configurations
    • Zinc Coating For Resistance To Off-Road Elements
    • Custom Valving Available
    • Factory Rebuildable
    • Made In The USA
  • Bilstein B8 5100 shock absorbers are designed as a direct fit solution for lifted trucks and SUV's. These shock absorbers feature a monotube design which provides consistent fade free performance. B8 5100 shock absorbers utilize a unique, velocity sensitive, digressive piston which reacts to changing road conditions. All B8 5100 shock absorbers are tuned for each specific application to assure optimal performance is achieved. B8 5100 shock absorbers offer a significant improvement in ride quality, handling, and comfort.
  • Suggested Purchase Quantity: 2
    • Most jobs typically require 2 of this item.

This Part Fits the Following OEM/Substitute Numbers:
24196468, 450443

Additional Fitment Information:
Vehicle Position Sub Model
2021 - GMC Sierra 2500 HD Rear AT4

Bilstein
  • B8 5100-Shock Absorber
  • For Rear Lifted Height: 3-4"
  • 46mm Monotube Shock Absorber
  • B8 5100
  • Product Attributes:
    • California Proposition 65: Warning: Cancer & Reproductive Harm - Www.p65warnings.ca.gov
    • Internal Design: Monotube
    • Collapsed Length:
      • 18.170 In.
      • 461.5mm
    • Upper Mount Type: Eye 14.4mm
    • Extended Length (MM): 760.0
    • Reservoir: No
    • Body Inside Diameter: 46mm
    • WARNING CA Proposition 65: Yes
    • Body Design: Smooth Body (non-coilover)
    • Spring Seat Included: No
    • WARNING CA Proposition 65 Message: Warning: Cancer & Reproductive Harm - Www.p65warnings.ca.gov
    • Reservoir Included: No
    • Collapsed Length (MM): 461.5
    • Boot Included: Black Bellows
    • Lower Mount Type: Eye 14.4mm
    • Adjustable Damping: Non-adjustable
    • Extended Length:
      • 29.920 In.
      • 760mm
    • Body Diameter (ID): 46mm
  • Features:
    • Bilstein 5100 Series
    • Monotube Gas Pressure Construction
    • Designed For Consistent Fade-Free Performance
    • Self-Adjusting Deflective Disc Valving
    • High-Flow Piston Reduces Harshness
    • Available In Stem-To-Eye/Eye-To-Eye Mounting Configurations
    • Zinc Coating For Resistance To Off-Road Elements
    • Custom Valving Available
    • Factory Rebuildable
    • Made In The USA
  • Bilstein B8 5100 shock absorbers are designed as a direct fit solution for lifted trucks and SUV's. These shock absorbers feature a monotube design which provides consistent fade free performance. B8 5100 shock absorbers utilize a unique, velocity sensitive, digressive piston which reacts to changing road conditions. All B8 5100 shock absorbers are tuned for each specific application to assure optimal performance is achieved. B8 5100 shock absorbers offer a significant improvement in ride quality, handling, and comfort.
  • Suggested Purchase Quantity: 2
    • Most jobs typically require 2 of this item.

This Part Fits the Following OEM/Substitute Numbers:
24218030

Additional Fitment Information:
Vehicle Position Sub Model
2021 - GMC Sierra 2500 HD Rear AT4
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