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RAM 3500 Tonneau Covers

Ram 3500 HD tonneau cover lineup

The Ram 3500 HD is the top heavy-duty Ram pickup with dually configurations and the 8' Long Bed. Tonneau covers focus on hard-panel security, high load ratings, and long-bed coverage. Like the 2500 HD, RamBox is available on select Crew Cab configurations.

Most-shopped covers for the Ram 3500 HD include the Extang Solid Fold ALX (600 lb), the BAKFlip MX4, the Extang Solid Fold Toolbox 2.0 for crossover toolboxes, and the RetraxPRO XR.

Ram 3500 HD shares its 8' Long Bed with the Ram 2500 HD Long Bed within each generation, so most covers fit both interchangeably. The dually rear axle does not affect cover fitment. RamBox-equipped Ram 3500s require RamBox-specific cover variants.

Run your Ram 3500 HD through the fitment tool or message us before you order. Fitment is verified before every cover ships.

How to choose a Ram 3500 HD tonneau cover

  • If you have RamBoxOrder the RamBox-specific variant of any cover.
  • If you want the highest load ratingExtang Solid Fold ALX — 600 lb evenly distributed.
  • If you want the best-selling hard foldBAKFlip MX4 — 400 lb, 5-year warranty.
  • If you run a crossover toolboxExtang Solid Fold Toolbox 2.0.
  • If you want retractable bed accessRetraxPRO XR or Roll-N-Lock A-Series.

Key capabilities

  • Heavy-duty long-bed coverageCovers stocked for the 8' Long Bed including dually configurations.
  • RamBox-compatible variantsMost brands stock RamBox-specific covers for applicable Ram 3500 HD configurations.
  • 600 lb load capacityExtang Solid Fold ALX is rated 600 lb evenly distributed.
  • Toolbox-compatible optionsExtang Solid Fold Toolbox 2.0 and Trifecta Toolbox 2.0 for crossover toolboxes.
  • Shared fitment with Ram 2500 HD Long BedSame 8' Long Bed within each generation.

Ideal for

  • Ram 3500 HD dually owners hauling commercial loads
  • RamBox owners who need RamBox-specific cover variants
  • Contractors needing maximum load capacity
  • Owners running crossover toolboxes on the 8' Long Bed
  • Drivers who want hard-panel security across the long bed

Shop by style

Compare the lineup

ProductStyleMaterialLockingStand-out
TruXedo TruXport Soft Roll-Up Vinyl over aluminum Dual paddle latches $299.99 entry tier
Extang Trifecta 2.0 Soft Folding Leather-grain vinyl EZ-Lock rear clamps Best-selling soft fold
BAKFlip MX4 Hard Folding Reinforced aluminum Automatic latch 400 lb capacity
Extang Solid Fold ALX Hard Folding EnduraShield TPO Secure Rotary Release 600 lb load rating
Extang Solid Fold Toolbox 2.0 Hard Folding + Toolbox EnduraShield TPO + L-Channel Jaw-Grip clamps Crossover toolbox-compatible
RetraxPRO XR Manual Retractable + T-Slot Matte aluminum slats Continuous-stop ratchet Retrax flagship manual
Roll-N-Lock A-Series Manual Retractable Dual-layer aluminum slats Three-position twist-lock Premium manual retractable

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Why shop with Truck Bed Barn

  • Free shippingEvery order ships free in the lower 48.
  • Free fitment checkWe verify the cover fits your exact Ram 3500 HD (including RamBox).
  • Fast shipping (1–7 days)Most orders deliver within a week.
  • Talk to a real personCall or text us.
  • Full manufacturer warrantyEvery cover ships with the full factory warranty.

Ram 3500 tonneau cover FAQ

What is the best tonneau cover for a Ram 3500 HD?
The Extang Solid Fold ALX (600 lb evenly distributed) is the top pick for work-load capacity. The BAKFlip MX4 is the best-selling hard fold.
Do Ram 2500 and 3500 HD covers fit interchangeably?
Yes for the 8' Long Bed. Ram 2500 HD Long Bed and Ram 3500 HD share the same 8' bed within each generation.
Does the Ram 3500 dually affect tonneau cover fitment?
No. The dually rear axle is a chassis difference, not a bed difference.
Does RamBox fit on the Ram 3500 HD?
Yes — RamBox is an option on Ram 3500 HD Crew Cab configurations. Requires RamBox-specific cover variants.
What is the Ram 3500 HD bed length?
8' Long Bed across current configurations.
How do you install a Ram 3500 HD tonneau cover?
No-drill clamp-on. Most installs take under an hour with hand tools.
Will a tonneau cover fit my exact Ram 3500?
Covers are sized per generation, bed length, and RamBox status. Use the fitment tool or message us before you order.