Access LOMAX Hard Tri-Fold Tonneau Cover

Part #: B4040039

Overview

The Access LOMAX Hard Tri-Fold Tonneau Cover combines secure aluminum construction with a sleek, ultra-low-profile design. Custom designed for 2019–2026 Ram 1500 models with the 5'7" bed, including applicable Ram TRX and Ram RHO models.

Key Features

• Fits 2019–2026 Ram 1500
• Fits applicable 2021–2024 Ram 1500 TRX
• Fits applicable 2025–2026 Ram 1500 RHO
• Designed for 5'7" bed
• Hard tri-fold / 3-panel design
• Durable aluminum construction
• Premium Black Diamond Mist finish
• Ultra-low-profile appearance
• Automatic locking system helps secure cargo
• Weather-resistant perimeter seals
• Water-shedding design
• Supports up to 400 lbs. evenly distributed
• Folds for convenient bed access
• Lightweight and removable
• No-drill, clamp-on installation
• 3-year limited warranty
• Made in the USA

Construction & Design

Strong aluminum panels and extruded channels provide excellent rigidity without excessive weight. The Black Diamond Mist finish adds a premium appearance, while weather-resistant seals and hinges help protect cargo from rain, dirt, and debris.

Installation & Fitment

The B4040039 installs using vehicle-specific mounting rails and clamps with no drilling required.

Fits: 2019–2026 Ram 1500
TRX: 2021–2024
RHO: 2025–2026
Bed: 5'7"
Style: Hard Tri-Fold
Material: Aluminum
Finish: Black Diamond Mist
Multifunction Tailgate: Not Compatible
TRX Bed Bar: Must be removed if equipped
Drilling: No

What's Included

• LOMAX hard tri-fold tonneau cover
• Vehicle-specific mounting rails
• Clamps and installation hardware
• Locking components
• Installation instructions

Ideal For

Ideal for Ram 1500, TRX, and RHO owners who want hard-cover security, premium styling, and a clean low-profile design with convenient bed access.