2021 GMC Sierra 3500 HD WeatherTech Parts

Choose your Submodel for your 2021 GMC Sierra 3500 HD


Showing 1 - 10 of 87 products
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WeatherTech
  • FloorLiner™ DigitalFit®
  • Black w/Vinyl Flooring
  • FloorLiner™ DigitalFit®; Black; Rear;
  • FloorLiner(TM) DigitalFit(R)
  • Product Attributes:
    • WARNING CA Proposition 65: No
    • Style: Molded
  • Features:
    • Made Of Natural Heavy Duty Rubber
    • Deeply Sculpted Channels
    • Designed To Trap Water/Road Salt/Mud And Sand
    • Made Of 16 lbs. Of Pliable Natural Rubber
    • Will Not Curl/Crack/Harden In Sub-Zero Weather
    • Anti-Skid Ridges To Prevent Shifting
    • Protective Non-Stick Finish For Quick Cleanup
    • Hold Up To 1.5 Quarts Of Water Without Spilling
  • The WeatherTech FloorLiner DigitalFit accurately and completely lines the interior carpet giving absolute interior protection. Digital laser measurements of interior surfaces offer a consistently perfect fit. A patent pending HighDensity TriExtruded (HDTE) material allows for a rigid core for strength while offering surface friction to the carpet, as well as tactile feel to the surface. Advanced surfacing creates channels that carry fluids and debris to a lower reservoir with further channeling to help minimize fluid movement while driving. Once fluids become trapped in the reservoir, away from shoes and clothing, they are easily removed from the WeatherTech FloorLiner DigitalFit over the door sill. No muss-no fuss.

Additional Fitment Information:
Vehicle Position Sub Model Body
2021 - GMC Sierra 3500 HD Rear SLE Extended Cab Pickup

WeatherTech
  • FloorLiner™ HP
  • Black w/Carpeted Floor
  • FloorLiner™ HP; Black; Front;
  • FloorLiner(TM) HP
  • Product Attributes:
    • WARNING CA Proposition 65: No
    • Style: Molded
  • Features:
    • Laser Measured To Perfectly Fit Your Vehicle
    • Made From Advanced Rubber-Like Thermoplastic Elastomer Compound
    • Wont Break Down In Extreme Weather Environments
    • Retention Systems And Anti-Skid Text On The Underside Of The Mat
    • Ensure Placement Without Any Shifting Or Sliding
    • Surfacing Carries And Locks Fluid And Debris To A Lower Reservoir
    • Lining The Bottom
    • Front
    • Back And Sides Of Your Vehicle Footwell
    • 100 Percent Recyclable Material: No Latex
    • Pvcs
    • Cadmium Or Lead
    • Designed
    • Engineered
    • And Manufactured In America!
    • Tactile Feel
  • WeatherTech's talented designers and engineers have taken our already advanced FloorLiner into the future! Laser measured and custom fit, FloorLiner HP is the next generation of high performance FloorLiner. Designed to protect your carpeted floors as well as the front, back and sides of your vehicle's footwell. FloorLiner HP is made using advanced rubber-like, Thermoplastic Elastomer (TPE) compound making it both soft and durable. Engineered and created to stand up to the most extreme weather conditions, it won't crack, curl or break down. This material is also 100% recyclable and is both latex and PVC-free! A specially designed retention system and non-slip nibs keep the FloorLiner HP locked in place, so there's no sliding. Its beveled edge prevents walls from curving in, for the ultimate in stability. A watertight sill around the retention clasps prevents messes from leaking onto your vehicle's interior carpet. Optimal side trim lines cut away to display the seal plate on your vehicle.

Additional Fitment Information:
Vehicle Position Body
2021 - GMC Sierra 3500 HD Front Crew Cab Pickup

WeatherTech
  • Cocoa; Bench Seat Width 60 in.; Depth 19 in.; Back Height 23 in.
  • Seat Protector; Cocoa; Bench Seat Width 60 in.; Depth 19 in.; Back Height 23 in.;
  • Seat Protector
  • Product Attributes:
    • Seat Type: Bench
    • Fabric: Polycotton
    • WARNING CA Proposition 65: Yes
    • WARNING CA Proposition 65 Message: Warning: Cancer And Reproductive Harm
    • Height: 23.000 In.
  • Features:
    • Durable Water Repellent Finish
    • Stays In Place w/Durable Straps
    • Non-Slip Bottom
    • Semi-Custom Fit
    • Quick And Easy Installation
    • Easily Removable For Cleaning
    • Machine Washable
    • Designed To Fit Bench Style Rear Seats
  • WeatherTech Seat Protectors are the perfect accessory for those vehicle owners needing an extra step of protection for their rear vehicle seating. A much needed accessory for the family road trip warriors or pet car ride companions to prevent scratches, damage or spills from ruining the seat surface. The Seat Protectors are made from a polycotton drill fabric that features a durable water-repellent finish that'll combat any juice box spill, cereal crumbs or pet mess! It's also engineered with an extra layer of nylon lining, which helps to further protect the covered seat. The Seat Protector stays in place with the help of durable straps, specialty inserts and a non-slip bottom. Semi–custom to fit the size and type of vehicle. Quick and easy installation, as well as easily removable for cleaning. The Seat Protector is machine washable, making it an easy accessory for any family. This product is for Rear seats only. Designed to fit most bench-style rear seats. Will not fit rear bucket seats.Available in black, tan and grey. Please note, you must have a headrest on the seatback of your vehicle for the Seat Protector to strap on to. Also, note that the on-screen color representations are not necessarily precise representations of actual product colors due to variance in monitor calibrations.

Additional Fitment Information:
Vehicle Position
2021 - GMC Sierra 3500 HD Rear

WeatherTech
  • Dually Bed w/o Bedside Storage Box
  • Alloy Cover;
  • Alloy Cover
  • Product Attributes:
    • WARNING CA Proposition 65: Yes
    • Paintable: No
    • WARNING CA Proposition 65 Message: Warning: Cancer And Reproductive Harm - Www.p65warnings.ca.gov
    • Works w/Toolbox: No
    • Front Opening: No
    • Style: Soft Folding Cover
    • Key Lockable: Yes
    • Full Bed Access: Yes
    • Rails To Install: Yes
    • Low Profile: Yes
    • Sits on Truck Rails: Yes
  • Features:
    • Alloy Cover
  • Maximize the security and durability of your truck bed with WeatherTech's AlloyCover. This low-profile hard tonneau cover features a user-friendly tri-fold design that makes installation and removal effortless. It features an AutoLatch II system that, when paired with a locked tailgate, provides unparalleled security, keeping your truck bed out of view. This truck bed cover mixes heavy-duty yet lightweight aluminum panels with watertight, reinforced vinyl coated hinges to help safeguard against any incursions. AlloyCover's low-profile design sits less than half an inch above your truck bed to provide a seamless look. A textured matte black finish keeps your truck looking sleek and stylish. The water-shedding design, along with reinforced vinyl coated hinges, route water away from the bed without gutters or drains. The hard tonneau cover overlaps the bed rails with a continuous seal along the entire length of the side rails, preventing elements from entering the truck bed.

Additional Fitment Information:
Vehicle Bed Bed Length Sub Model
2021 - GMC Sierra 3500 HD Fleetside 82.2 Denali

WeatherTech
  • w/o Bedside Storage Box
  • Alloy Cover;
  • Alloy Cover
  • Product Attributes:
    • WARNING CA Proposition 65: Yes
    • Paintable: No
    • WARNING CA Proposition 65 Message: Warning: Cancer And Reproductive Harm - Www.p65warnings.ca.gov
    • Works w/Toolbox: No
    • Front Opening: No
    • Style: Soft Folding Cover
    • Key Lockable: Yes
    • Full Bed Access: Yes
    • Rails To Install: Yes
    • Low Profile: Yes
    • Sits on Truck Rails: Yes
  • Features:
    • Alloy Cover
  • Maximize the security and durability of your truck bed with WeatherTech's AlloyCover. This low-profile hard tonneau cover features a user-friendly tri-fold design that makes installation and removal effortless. It features an AutoLatch II system that, when paired with a locked tailgate, provides unparalleled security, keeping your truck bed out of view. This truck bed cover mixes heavy-duty yet lightweight aluminum panels with watertight, reinforced vinyl coated hinges to help safeguard against any incursions. AlloyCover's low-profile design sits less than half an inch above your truck bed to provide a seamless look. A textured matte black finish keeps your truck looking sleek and stylish. The water-shedding design, along with reinforced vinyl coated hinges, route water away from the bed without gutters or drains. The hard tonneau cover overlaps the bed rails with a continuous seal along the entire length of the side rails, preventing elements from entering the truck bed.

Additional Fitment Information:
Vehicle Bed Bed Length Sub Model
2021 - GMC Sierra 3500 HD Fleetside 82.2 Base

WeatherTech
  • WeatherTech® SunShade Full Vehicle Kit
  • Silver/Black w/Large Sensor~w/o Power Rear Window
  • WeatherTech® SunShade Full Vehicle Kit; Silver/Black;
  • WeatherTech(R) SunShade Full Vehicle Kit
  • Product Attributes:
    • WARNING CA Proposition 65: No
  • Features:
    • Helps Keep Your Entire Vehicles Temperatures Down
    • Protects Entire Vehicle From Sun Damage
    • Includes 4 Or 6 Pieces Depending On Your Model
    • Custom-Fit When Properly Installed
    • Will Remain Snug In Each Window Opening
    • Features A Foam Core
    • Makes For Easy Handling And Sturdy Fit
    • Easy Roll Up And Store Hook And Loop Strap
  • WeatherTech SunShade Full Vehicle Kits help keep your entire vehicle's interior temperatures down while protecting it from the sun's damaging effects. SunShade Full Vehicle Kits include 4 or 6 pieces depending on the vehicle model. SunShade kits are custom-fit, and when properly installed, will remain snug in each window opening on the vehicle. Each SunShade features a foam core, which makes for easy handling and a sturdy fit. After use, simply pull on the your shade's pull tabs and roll all pieces together using the easy roll up and store Hook & Loop strap. Full Vehicle Kits only available in select vehicles

Additional Fitment Information:
Vehicle Body
2021 - GMC Sierra 3500 HD Crew Cab Pickup

WeatherTech
  • FloorLiner™ HP
  • Black w/o Carpeted Storage~w/Carpeted Floor
  • FloorLiner™ HP; Black; Rear;
  • FloorLiner(TM) HP
  • Product Attributes:
    • WARNING CA Proposition 65: No
    • Style: Molded
  • Features:
    • Custom Fit For Your Vehicles Make And Model
    • High-Walled Design Helps Contain Messes Of Any Kind
    • Anti-Skid Nibs And Underside Texture Keep FloorLiner HP In Place
    • Compound Wont Break Down In Extreme Weather Environments
    • Tactile Feel
    • Placement Without Any Shifting Or Sliding
    • Protects The Bottom
    • Front
    • Back And Sides
    • 100pct Recyclable Material No Latex
    • PVCs
    • Cadmium Or Lead
    • Designed
    • Engineered And Manufactured By WeatherTech In America
  • WeatherTech's talented designers and engineers have taken our already advanced FloorLiner into the future! Laser measured and custom fit, FloorLiner HP is the next generation of high performance FloorLiner. Designed to protect your carpeted floors as well as the front, back and sides of your vehicle's footwell. FloorLiner HP is made using advanced rubber-like, Thermoplastic Elastomer (TPE) compound making it both soft and durable. Engineered and created to stand up to the most extreme weather conditions, it won't crack, curl or break down. This material is also 100% recyclable and is both latex and PVC-free! A specially designed retention system and non-slip nibs keep the FloorLiner HP locked in place, so there's no sliding. Its beveled edge prevents walls from curving in, for the ultimate in stability. A watertight sill around the retention clasps prevents messes from leaking onto your vehicle's interior carpet. Optimal side trim lines cut away to display the seal plate on your vehicle.

Additional Fitment Information:
Vehicle Position Sub Model Body
2021 - GMC Sierra 3500 HD Rear SLE Extended Cab Pickup

WeatherTech
  • WeatherTech® SunShade
  • w/Small Sensor~w/o Windshield Sensor
  • WeatherTech® SunShade;
  • WeatherTech(R) SunShade
  • Product Attributes:
    • WARNING CA Proposition 65: No
  • Features:
    • Helps Keep Your Entire Vehicles Temperatures Down
    • Protects Entire Vehicle From Sun Damage
    • Custom-Fit When Properly Installed
    • Will Remain Snug In Each Window Opening
    • Features A Foam Core
    • Makes For Easy Handling And Sturdy Fit
    • Easy Roll Up And Store Hook And Loop Strap
  • Custom fit and perfect for any season, the SunShade can keep your vehicle cool in the summer and help prevent frost build up in the winter. Reflective film chases the sun away in summer. Then, the reverse side absorbs the heat for those cold winter months. The unique patented suction cups aid in installation to secure the placement of the SunShade. When not in use, the SunShade is easily removed, rolled and secured with a Velcro strip. The SunShade is custom fit for each vehicle. WeatherTech SunShades are guaranteed against faulty materials and workmanship for a period of three years.

Additional Fitment Information:
Vehicle Body
2021 - GMC Sierra 3500 HD Crew Cab Pickup

WeatherTech
  • FloorLiner™ HP
  • Cocoa w/Carpeted Floor
  • FloorLiner™ HP; Cocoa; Front;
  • FloorLiner(TM) HP
  • Product Attributes:
    • WARNING CA Proposition 65: No
    • Style: Molded
  • Features:
    • Laser Measured To Perfectly Fit Your Vehicle
    • Made From Advanced Rubber-Like Thermoplastic Elastomer Compound
    • Wont Break Down In Extreme Weather Environments
    • Retention Systems And Anti-Skid Text On The Underside Of The Mat
    • Ensure Placement Without Any Shifting Or Sliding
    • Surfacing Carries And Locks Fluid And Debris To A Lower Reservoir
    • Lining The Bottom
    • Front
    • Back And Sides Of Your Vehicle Footwell
    • 100 Percent Recyclable Material: No Latex
    • Pvcs
    • Cadmium Or Lead
    • Designed
    • Engineered
    • And Manufactured In America!
    • Tactile Feel
  • WeatherTech's talented designers and engineers have taken our already advanced FloorLiner into the future! Laser measured and custom fit, FloorLiner HP is the next generation of high performance FloorLiner. Designed to protect your carpeted floors as well as the front, back and sides of your vehicle's footwell. FloorLiner HP is made using advanced rubber-like, Thermoplastic Elastomer (TPE) compound making it both soft and durable. Engineered and created to stand up to the most extreme weather conditions, it won't crack, curl or break down. This material is also 100% recyclable and is both latex and PVC-free! A specially designed retention system and non-slip nibs keep the FloorLiner HP locked in place, so there's no sliding. Its beveled edge prevents walls from curving in, for the ultimate in stability. A watertight sill around the retention clasps prevents messes from leaking onto your vehicle's interior carpet. Optimal side trim lines cut away to display the seal plate on your vehicle.

Additional Fitment Information:
Vehicle Position Body
2021 - GMC Sierra 3500 HD Front Crew Cab Pickup

WeatherTech
  • FloorLiner™ HP
  • Black w/o Carpeted Storage~w/Carpeted Floor
  • FloorLiner™ HP; Black; Rear;
  • FloorLiner(TM) HP
  • Product Attributes:
    • WARNING CA Proposition 65: No
    • Style: Molded
  • Features:
    • Custom Fit For Your Vehicles Make And Model
    • High-Walled Design Helps Contain Messes Of Any Kind
    • Anti-Skid Nibs And Underside Texture Keep FloorLiner HP In Place
    • Compound Wont Break Down In Extreme Weather Environments
    • Tactile Feel
    • Placement Without Any Shifting Or Sliding
    • Protects The Bottom
    • Front
    • Back And Sides
    • 100pct Recyclable Material No Latex
    • PVCs
    • Cadmium Or Lead
    • Designed
    • Engineered And Manufactured By WeatherTech In America
  • WeatherTech's talented designers and engineers have taken our already advanced FloorLiner into the future! Laser measured and custom fit, FloorLiner HP is the next generation of high performance FloorLiner. Designed to protect your carpeted floors as well as the front, back and sides of your vehicle's footwell. FloorLiner HP is made using advanced rubber-like, Thermoplastic Elastomer (TPE) compound making it both soft and durable. Engineered and created to stand up to the most extreme weather conditions, it won't crack, curl or break down. This material is also 100% recyclable and is both latex and PVC-free! A specially designed retention system and non-slip nibs keep the FloorLiner HP locked in place, so there's no sliding. Its beveled edge prevents walls from curving in, for the ultimate in stability. A watertight sill around the retention clasps prevents messes from leaking onto your vehicle's interior carpet. Optimal side trim lines cut away to display the seal plate on your vehicle.

Additional Fitment Information:
Vehicle Position Body
2021 - GMC Sierra 3500 HD Rear Crew Cab Pickup
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