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Retrax

Retrax PowertraxPRO MX 90484 Tonneau 20-26 Silverado/Sierra HD 6'9"

Retrax PowertraxPRO MX 90484 Tonneau 20-26 Silverado/Sierra HD 6'9"

Regular price $2,899.99 USD
Regular price Sale price $2,899.99 USD
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SKU:90484

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Key Features

  • Wireless key-fob electric operation — open the 6'9" HD bed without leaving the driver's seat
  • Electromagnetic brake locks the aluminum deck at any point along the rail
  • 500 lb evenly distributed load rating on the closed cover
  • Double-walled aluminum slats with a matte black powder coat finish
  • Fob-controlled LED cargo light in the canister with automatic shutoff
  • Sealed ball-bearing rollers run without springs or tension adjustment
  • Integrated drain tubes route water out of the bed
  • Clamp-on install with no drilling on most applications

The Retrax PowertraxPRO MX 90484 is an electric retractable, double-walled aluminum tonneau cover built for the 2020-2026 Chevrolet Silverado 2500HD and 3500HD and GMC Sierra 2500HD and 3500HD with the 6'9" (82.2 in) standard bed, and it does not fit a bed equipped with the factory side storage boxes.

Three-quarter-ton and one-ton GM trucks earn their keep hauling, and a hand-cranked soft cover is the wrong tool when both hands are already full. The PowertraxPRO MX runs from a wireless key fob: one press and the aluminum slat deck spirals into a low canister at the bulkhead, another press and the bed is sealed. An electromagnetic brake stops and holds the deck anywhere along the rail, so you can leave exactly as much box open as the load needs — conduit hanging past the tailgate, a pallet forward, a cooler between them.

Key Benefits

  • Key-fob electric operation opens or closes the full 6'9" box without you touching the cover
  • Electromagnetic brake locks the deck at any position along the rail for partial-bed loads
  • 500 lb of evenly distributed weight capacity across the closed deck
  • Double-walled aluminum slats in a matte black powder coat that reads as factory next to a Duramax or Denali HD
  • Integrated LED cargo light in the canister, fob-operated with an automatic safety shutoff
  • Sealed maintenance-free ball-bearing rollers — no springs, no seasonal tension adjustment
  • Water management system with drain tubes that route runoff out of the bed
  • Clamp-on installation with no drilling on most applications; assembled in North Dakota

What's Included

  • PowertraxPRO MX cover assembly with spiral canister
  • Two wireless key fobs
  • Integrated LED canister cargo light
  • Water drainage tubes
  • Clamp-on mounting hardware

Specifications

  • Cover type: electric retractable hard cover
  • Material: double-walled industrial-strength aluminum slats
  • Finish: matte black powder coat
  • Weight capacity: 500 lb evenly distributed
  • Operation: wireless key fob with electromagnetic brake, lockable at any position
  • Lighting: integrated LED cargo light with auto shutoff
  • Bed length: 6'9" standard HD box (82.2 in)
  • Warranty: 3-year full warranty, then a prorated limited lifetime warranty to the original owner, non-transferable
  • MPN: 90484
  • Sibling part: T-90484 is the PowertraxPRO XR build of the same application and adds T-slot Trax Rails above the cover

Fitment

The 90484 fits 2020-2026 Chevrolet Silverado 2500HD and 3500HD and 2020-2026 GMC Sierra 2500HD and 3500HD trucks ordered with the 6'9" (82.2 in) standard box. Does not fit a bed equipped with the factory side storage boxes. On trucks with the MultiPro tailgate, Retrax's application data calls for modification around the tailgate handle area before the cover will fit.

  • 2020-2026 Chevrolet Silverado 2500HD — 6'9" bed
  • 2020-2026 Chevrolet Silverado 3500HD — 6'9" bed
  • 2020-2026 GMC Sierra 2500HD — 6'9" bed
  • 2020-2026 GMC Sierra 3500HD — 6'9" bed

FAQ

Does 90484 fit a Silverado HD with the factory side storage boxes?

No. The 90484 is listed as not compatible with factory side storage boxes, because the boxes occupy the bed-rail space the cover's rails need.

Will 90484 work with the GMC MultiPro tailgate?

Retrax's application data lists the MultiPro tailgate as requiring modification around the tailgate handle for this cover to fit, so budget for that step on a MultiPro-equipped Sierra HD.

Is my HD truck the 6'9" bed?

The 6'9" standard box is the short bed on a 2020-2026 Silverado/Sierra HD and measures about 82.2 in inside. The 8-foot long box uses a different Retrax part number.

How much weight can the closed cover carry?

500 lb, evenly distributed across the closed deck.

Vehicle Fitment

Years Make Model Submodel
2020–2026 Chevrolet Silverado 2500HD
2020–2026 Chevrolet Silverado 3500HD
2020–2026 GMC Sierra 2500HD
2020–2026 GMC Sierra 3500HD

Specifications

material
double-walled aluminum slats
finish
matte black powder coat

Shipping & Returns

Free shipping on orders $250+ (standard items). Oversized items ship at calculated rates.

30-day returns with RMA required. 15% restocking fee, buyer pays return shipping. Defective items returned free with full refund.

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