GMC R3500 Truck Beds

Your One-Stop Shop For Trusted GMC R3500 Truck Beds

If you’re in search of GMC R3500 Truck Beds aftermarket or OEM parts, consider your search over! Advance Auto Parts carries 28 Truck Beds from top brands with prices ranging from $8.99 to $968.99.

Beyond great prices, we stock trusted brands manufacturing all types of Truck Beds for your GMC R3500. Of the 8 OEM and aftermarket parts brands we carry, some of the most popular are ARIES, CARR, and KAI.

And don’t forget to read customer reviews across all Truck Beds categories in our catalog. Buy with confidence by leveraging past customer experiences of our aftermarket and OEM parts.

At Advance Auto Parts, we don’t think top quality Truck Beds have to cost top dollar, and we prove it. Browse our top GMC R3500 Truck Beds below, order online to ship to your home, or head into your nearest Advance Auto Parts location to get started.

Essential GMC R3500 Truck Beds

CARR – Truck Step, Cab Mount; Multi-Fit; Set Of 2; Flat Step; Non-Extendable; Polished Aluminum (Part No.124032)

Truck Step, Cab Mount; Multi-Fit; Set Of 2; Flat Step; Non-Extendable; Polished Aluminum

from

$268.99
The stylish and innovative design of these steps add to a vehicle rugged off road look. Available in three low maintenance, extremely durable finishes to complement your vehicle appearance. Easily installed using our new multi mount system for superior strength and rigidity. Rocker panel installation provides for the strongest and easiest installation of any step products.

Product Features:
  • Exclusive New Multi Mount System
  • Made Of Corrosion Resistant, Durable Cast Aluminum Alloy
  • Rugged Diamond Tread Pattern Provides For Safe And Attractive Non Slip Surface
  • Unique Design Gives The Vehicle A Rugged Off Road Look, While Being A Stylish Accent For Todays Vehicles
  • Strong Construction To Hold Up Under Extreme Conditions
  • Mechanical Polished Finish That would not Rust, Crack Or Peel And Requires Very Little Maintenance
  • Strongest And Easy Installation
  • Limited Lifetime Warranty
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CARR – Cab Mount, Multi-Fit, Set Of 2, Flat Step, Non-Extendable, Polished, Aluminum (Part No.103992)

Cab Mount, Multi-Fit, Set Of 2, Flat Step, Non-Extendable, Polished, Aluminum

from

$141.99
Uniquely designed diamond tread pattern provides a safe non slip surface on the flat step area. Our exclusive multi mount system is designed for precision fit and easier installation. Constructed of an extremely strong die cast aluminum alloy for the ultimate in quality and durability. Rocker panel installation provides for the strongest and easiest installation of any step products.

Product Features:
  • Exclusive New Multi Mount System
  • Made Of Corrosion Resistant, Durable Cast Aluminum Alloy
  • Rugged Diamond Tread Pattern Provides For Safe And Attractive Non Slip Surface
  • Unique Design Gives The Vehicle A Rugged Off Road Look, While Being A Stylish Accent For Today Vehicles
  • Strong Construction To Hold Up Under Extreme Conditions
  • Mechanical Polished Finish That Will Not Rust, Crack Or Peel And Requires Very Little Maintenance
  • Strongest And Easy Installation
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KAI – Truck Cab Support (Part No.GMK414451773R)

Truck Cab Support

from

$149.99
New Goodmark Passenger Side Cab Floor Brace

Product Features:
  • Made Of Steel
  • Meets All Federal Motor Safety Standards
  • No Drilling Needed For Installation
  • No Modifications Needed For Installation
  • Direct Fit Replacement For Your Vehicle
  • Same Form Fit And Function As OE
  • Check Out The Large Selection Of Parts Available For Your Vehicle
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KAI – Truck Floor Support (Part No.GMK4144731733)

Truck Floor Support

from

$99.99
New Goodmark Bed Cross Sill For Stepside Pickups, 3 Required For Short Bed Models, 5 Required For Long Bed Models

Product Features:
  • 3 Required For Short Bed Models 5 Required For Long Bed Models
  • Meets All Federal Motor Safety Standards
  • No Drilling Needed For Installation
  • No Modifications Needed For Installation
  • Direct Fit Replacement For Your Vehicle
  • Same Form Fit And Function As OE
  • Check Out The Large Selection Of Parts Available For Your Vehicle
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Rampage – EasyFit Cab Cover, 4 Layer, Gray, Includes Lock, Cable, Storage Bag, For Use With Standard Cab (Part No.1320)

EasyFit Cab Cover, 4 Layer, Gray, Includes Lock, Cable, Storage Bag, For Use With Standard Cab

from

$133.99
Product Features:
  • Soft And Durable Diamond Bond Pattern
  • Unique 4-Layer Breathable Material
  • Ultraviolet Protection Against Sun And Heat
  • Polypropylene Layers Repel Water
  • Side Grommets For Tie Downs
  • Includes Free Locking Cable And Storage Bag
  • Indoor And Outdoor Usage
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Westin – HD Headache Rack (Part No.57-8025)

HD Headache Rack

from

$545.99
HDX Commercial Grade Headache Rack protects your rear window from potential damage from shifting cargo. Welded tie-off hooks for securing your load are standard on all applications. Angled louvers keep sunlight out the cab cool and prevent UV damage to your interior all while allowing unobstructed visibility. 4 mount tabs give you the option of adding safety lights or accessories. Accommodates all major brand tool boxes. 2 diameter round top tube makes it easy to slide ladders

Product Features:
  • Provides The Protection Heavy Trucks Require
  • 1 Piece Welded Construction
  • Full Louvered Window Protection
  • Includes Rope Tie Off Hooks
  • Has Opening For Rear Light
  • Contoured Body Frame
  • Mounts For Light Tabs
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Dee Zee – Mesh, Textured, Black, Aluminum, Used With Cross Bed Tool Box, Curved Design (Part No.DZ95050RTB)

Mesh, Textured, Black, Aluminum, Used With Cross Bed Tool Box, Curved Design

from

$968.99
Even if you secure your cargo properly, it can still happen. Driving on todays hectic roads can lead to extreme stopping situations that could end up sending cargo barreling through your truck cab rear window. With the Dee Zee Cab Rack this is no longer a concern. Made of 100 Percent 2.5 Inch aluminum tubing with a protective textured black powder coating, our cab racks are built to handle as much abuse as you can throw at them. A rear window protection screen consists of either heavy duty ultra-mesh – for your protection and visibility requirements.

Product Features:
  • Rugged Protection For Your Trucks Rear Cab Area
  • 2.5 Inch Hexagonal Aluminum Tubing For Rugged Construction
  • Heavy-Duty Aluminum Ultra Mesh Offers More Visibility And Protection Depending On Your Needs
  • Protective Textured Black Powder Coat Finish Keeps Your Rack Looking Fresh
  • Integrated Channel System For Easy Addition Of Accessories
  • Install Into Existing Stake Pocket Holes
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Extang – Trifecta (TM) 2.0 tri-fold Tonneau Cover, Black vinyl, 75-87 C10 Series 8 Ft Bed (Part No.92535)

Trifecta (TM) 2.0 tri-fold Tonneau Cover, Black vinyl, 75-87 C10 Series 8 Ft Bed

from

$499.99
Extangs Trifecta Tri Fold Tonneau has an easy to use folding design, smooth sleek looks and unmatched durability. This user friendly soft tonneau requires no assembly, no drilling, and installation is as easy as positioning the cover on your truck, tightening the clamps and you’re ready to go. The Hold Tite Straps And Snaps, WeatherTuff Seals, and MaxHinges are all Extang Engineered in order to ensure the best in security and safety.

Product Features:
  • Non Lockable
  • Heavy Duty Vinyl Helps To Keep Your Cargo Protected From Whatever Weather You Drive Through
  • Heavy Duty Luggage Style Hold Tite Fasteners Secure The Tonneau In The Open Position At The Cab, Provides Quick And Easy Storage When Hauling Large Cargo
  • Features A Rich Looking All Black Frame, It Has A Perfectly Sewn And Tight Fitting, Double Layered Vinyl With Anti Curl Corners
  • Ultra Strong, Rugged, Double Pivot Design. Max Hinges Are Made Of Durable Glass Filled Nylon And Feature Protective Padding
  • Rear Tail Section Clamps Operate With Spring Action Handle For Instant Fasten And Release, Clamp Conveniently Stows Away Inside Rail When Not In Use
  • Easy To Use Folding Design With Smooth Sleek Looks
  • Limited Lifetime Warranty
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Extang – Soft Folding, 2 Folds/3 Panels, Not Hinged In Front, Tailgate Lock, Black, Vinyl (Part No.92545)

Soft Folding, 2 Folds/3 Panels, Not Hinged In Front, Tailgate Lock, Black, Vinyl

from

$499.99
The best selling soft Tri-Fold cover just got better. The Trifecta 2.0 has softer curves and sleek design that creates smoother, more contoured, low profile appearance. The tarp is constructed of heavy-duty, leather grained fabric with an integrated corner tuck system that has improved tarp tension and keeps your truck looking great. The newly redesigned frame, hinges, and corners provide more structural strength than before. Strongest in the industry, the frame is made of lightweight aircraft grade aluminum. The new MAX hinges are rugged and have a double pivot design. Our exclusive snap on seals eliminate adhesive and remain in place for ultimate weather protection.

Product Features:
  • Lockable Via Tailgate Lock
  • Heavy Duty Leather Grain Fabric Provides Clean Lines And A Low Profile Appearance
  • Engineered Cab Clamps Attach Directly To Your Bed Flanges Without Damage And Alteration To Your Bed Caps
  • EZ-Lock Clamps Requires Minimal Effort To Operate And Self-Locks In Position When Attached To The Bed Flange For Added Security
  • Clamping System Attaches To Your Truck In Seconds For Easy Installation
  • Rear Tail Section Clamps Operate With Spring Action Handle For Instant Fasten And Release, Clamp Conveniently Stows Away Inside Rail When Not In Use
  • Easy To Use Folding Design With Smooth Sleek Looks
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KAI – Truck Cab Corner (Part No.RRP109)

Truck Cab Corner

from

$8.99
New Standard Replacement Passenger Side Cab Corner, Slip-On Type, 2 Door Regular Cab, 4.75 X 16

Product Features:
  • Slip-On Type, 2 Door Regular Cab, 4.75 X 16, Made Of Steel
  • Meets All Federal Motor Safety Standards
  • No Drilling Needed For Installation
  • No Modifications Needed For Installation
  • Direct Fit Replacement For Your Vehicle
  • Same Form Fit And Function As OE
  • Check Out The Large Selection Of Parts Available For Your Vehicle
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KAI – Truck Cab Corner (Part No.RRP110)

Truck Cab Corner

from

$8.99
New Standard Replacement Driver Side Cab Corner, Slip-On Type, 2 Door Regular Cab, 4.75 X 16

Product Features:
  • Slip-On Type, 2 Door Regular Cab, 4.75 X 16, Made Of Steel
  • Meets All Federal Motor Safety Standards
  • No Drilling Needed For Installation
  • No Modifications Needed For Installation
  • Direct Fit Replacement For Your Vehicle
  • Same Form Fit And Function As OE
  • Check Out The Large Selection Of Parts Available For Your Vehicle
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KAI – Truck Bed Panel (Part No.GMK414482873L)

Truck Bed Panel

from

$29.99
New Goodmark Driver Side Tailgate Post Patch, For Fleetside Models

Product Features:
  • For Fleetside Models
  • Meets All Federal Motor Safety Standards
  • No Drilling Needed For Installation
  • No Modifications Needed For Installation
  • Direct Fit Replacement For Your Vehicle
  • Same Form Fit And Function As OE
  • Check Out The Large Selection Of Parts Available For Your Vehicle
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Dee Zee – DogBx (Part No.DZ91782)

DogBx

from

$309.99
DogBx

KAI – Bed Panel Patch (Part No.GMK4144610731R)

Bed Panel Patch

from

$79.99
New Goodmark Passenger Side Lower Front Bedside Patch, For Shortbed Fleetside Models

Product Features:
  • For Shortbed Fleetside Models
  • Meets All Federal Motor Safety Standards
  • No Drilling Needed For Installation
  • No Modifications Needed For Installation
  • Direct Fit Replacement For Your Vehicle
  • Same Form Fit And Function As OE
  • Check Out The Large Selection Of Parts Available For Your Vehicle
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KAI – Bed Panel Patch (Part No.GMK4144690732R)

Bed Panel Patch

from

$54.99
New Goodmark Passenger Side Lower Rear Bedside Patch, For Longbed Fleetside Models, 31 Inches L X 12 3/4 Inches H

Product Features:
  • For Longbed Fleetside Models 31 Inches Long X 12 3/4 Inches High
  • Meets All Federal Motor Safety Standards
  • No Drilling Needed For Installation
  • No Modifications Needed For Installation
  • Direct Fit Replacement For Your Vehicle
  • Same Form Fit And Function As OE
  • Check Out The Large Selection Of Parts Available For Your Vehicle
See More

KAI – Bed Panel Patch (Part No.GMK4144610731L)

Bed Panel Patch

from

$79.99
New Goodmark Driver Side Lower Front Bedside Patch, For Shortbed Fleetside Models

Product Features:
  • For Shortbed Fleetside Models
  • Meets All Federal Motor Safety Standards
  • No Drilling Needed For Installation
  • No Modifications Needed For Installation
  • Direct Fit Replacement For Your Vehicle
  • Same Form Fit And Function As OE
  • Check Out The Large Selection Of Parts Available For Your Vehicle
See More

KAI – Bed Panel Patch (Part No.GMK4144690732L)

Bed Panel Patch

from

$54.99
New Goodmark Driver Side Lower Rear Bedside Patch, For Longbed Fleetside Models, 31 Inches Long X 12 3/4 Inches High

Product Features:
  • For Longbed Fleetside Models 31 Inches Long X 12 3/4 Inches High
  • Meets All Federal Motor Safety Standards
  • No Drilling Needed For Installation
  • No Modifications Needed For Installation
  • Direct Fit Replacement For Your Vehicle
  • Same Form Fit And Function As OE
  • Check Out The Large Selection Of Parts Available For Your Vehicle
See More

Westin – Bedcaps (Part No.72-41101)

Bedcaps

from

$103.99
Westin Bed Caps, constructed with high-impact ABS, give your vehicle a finished factory look while protecting your bed railing from the elements. Product installs quickly and easily with sturdy 3M tape. Available with or without stake pocket in black finish.

Product Features:
  • Protects bed railing against damage
  • Gives vehicle a finished factory look
  • Installs quickly and easily with 3M tape
  • Matching Tail Cap / Front Cap available
  • Will work with tonneau covers, camper shells and tie-downs if properly installed
  • Available in Smooth or Ribbed style
  • Available with or without stake pocket holes
  • Made in the USA
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KAI – Truck Floor Support (Part No.RRP117)

Truck Floor Support

from

$12.99
New Standard Replacement Front Cab Floor Support, Slip-On Style, 13 X 4

Product Features:
  • Slip-On Style, 13 X 4, Made Of Steel
  • Meets All Federal Motor Safety Standards
  • No Drilling Needed For Installation
  • No Modifications Needed For Installation
  • Direct Fit Replacement For Your Vehicle
  • Same Form Fit And Function As OE
  • Check Out The Large Selection Of Parts Available For Your Vehicle
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KAI – Truck Floor Support (Part No.RRP1170)

Truck Floor Support

from

$36.99
New Standard Replacement Front Cab Floor Support, 13 X 4 1/4

Product Features:
  • 13 X 4 1/4, Made Of Steel
  • Meets All Federal Motor Safety Standards
  • No Drilling Needed For Installation
  • No Modifications Needed For Installation
  • Direct Fit Replacement For Your Vehicle
  • Same Form Fit And Function As OE
  • Check Out The Large Selection Of Parts Available For Your Vehicle
See More

Truck Beds Brands You Can Trust For Your GMC R3500

8 trusted brands of Truck Beds line our shelves, ready to help keep your GMC R3500 running smooth. Below are some of the most popular brands and their top Truck Beds offerings:

Most Purchased GMC R3500 Truck Beds from ARIES

When you buy the most frequently purchased ARIES brand Truck Beds, you can be confident it will be the right part for your GMC R3500. Here are the ARIES Truck Beds Advanced Auto customers buy the most:
Durable Truck Headache Rack: Protect Your Cab from Impact and Sun Damage
from $249.99
This product is not rated
Durable Truck Headache Rack: Protect Your Cab from Impact and Sun Damage
Truck Cab Protector and Headache Racks
Truck Step, Cab Mount; Multi-Fit; Set Of 2; Flat Step; Non-Extendable; Polished Aluminum
from $268.99
This product is not rated
Truck Step, Cab Mount; Multi-Fit; Set Of 2; Flat Step; Non-Extendable; Polished Aluminum
Truck Cap Side Steps
Cab Mount, Multi-Fit, Set Of 2, Flat Step, Non-Extendable, Stationary, Aluminum
from $268.99
This product is not rated
Cab Mount, Multi-Fit, Set Of 2, Flat Step, Non-Extendable, Stationary, Aluminum
Truck Cap Side Steps

FAQs for GMC R3500 Truck Beds

What are the most purchased Truck Beds for the GMC R3500?

Out of 28 Truck Beds for the GMC R3500, the most popular in our inventory are:
Durable Truck Headache Rack: Protect Your Cab from Impact and Sun Damage
from $249.99
This product is not rated
Durable Truck Headache Rack: Protect Your Cab from Impact and Sun Damage
Truck Cab Protector and Headache Racks
Truck Step, Cab Mount; Multi-Fit; Set Of 2; Flat Step; Non-Extendable; Polished Aluminum
from $268.99
This product is not rated
Truck Step, Cab Mount; Multi-Fit; Set Of 2; Flat Step; Non-Extendable; Polished Aluminum
Truck Cap Side Steps
Cab Mount, Multi-Fit, Set Of 2, Flat Step, Non-Extendable, Stationary, Aluminum
from $268.99
This product is not rated
Cab Mount, Multi-Fit, Set Of 2, Flat Step, Non-Extendable, Stationary, Aluminum
Truck Cap Side Steps