Access LOMAX Hard Tri-Fold Tonneau Cover

Part #: B3020079

Overview

Protect your truck bed and cargo with the Access LOMAX Hard Tri-Fold Tonneau Cover. Designed for 2019–2026 Chevrolet Silverado 1500 and GMC Sierra 1500 models with the 5'8" bed, this hard folding cover combines durable aluminum construction, secure locking, and an ultra-low-profile appearance.

The LOMAX sits less than approximately half an inch above the bed rails for a clean, streamlined look while providing the strength and security of a hard tonneau cover.

Key Features

• Fits 2019–2026 Chevrolet Silverado 1500 & GMC Sierra 1500
• Designed for 5'8" bed
• Compatible with or without Multi-Flex / MultiPro tailgate
• Not compatible with CarbonPro bed
• Not compatible with bedside storage boxes
• Hard tri-fold / 3-panel design
• Durable aluminum panel construction
• Black urethane finish
• Ultra-low-profile design sits less than approximately 1/2" above the bed
• Automatic 10-point locking system
• Reinforced locking components help secure cargo
• Extruded aluminum channels reinforce the panels
• Continuous side-rail seals help protect the bed from the elements
• Water-resistant, reinforced vinyl-coated hinges
• Water-shedding design eliminates the need for external gutters or drain tubes
• Supports up to 400 lbs. of evenly distributed weight
• Integrated storage clips secure the panels when folded
• Opens from either side using the integrated release cord
• TIGHT BITE clamp mounting system
• No drilling required
• Easy to remove and reinstall
• 3-year limited warranty

Construction & Design

The LOMAX Hard Tri-Fold Cover features lightweight aluminum panels reinforced with extruded aluminum channels to provide strength and rigidity without the bulk of many traditional hard tonneau covers.

Flexible rubber seals and reinforced vinyl-coated hinges help minimize vibration while providing weather-resistant protection. The cover overlaps the bed rails with continuous seals, while its water-shedding design helps route moisture away from the truck bed without bulky gutters or drain tubes.

When closed, the automatic locking system secures the cover at 10 points along the bed. An integrated pull cord simultaneously releases the locks for convenient access from either side of the truck.

Installation & Fitment

The B3020079 installs using Access's TIGHT BITE clamp system and requires no drilling. The cover can also be removed and reinstalled when additional bed space is needed.

Fits: 2019–2026 Chevrolet Silverado 1500 / GMC Sierra 1500

Bed Length: 5'8"

Cover Style: Hard Tri-Fold

Material: Aluminum

Finish: Black Urethane

Mounting: Clamp-On

Drilling Required: No

Multi-Flex / MultiPro Tailgate: Compatible

CarbonPro Bed: Not Compatible

Bedside Storage Boxes: Not Compatible

What's Included

Includes the components required for installation:

• LOMAX hard tri-fold tonneau cover
• Vehicle-specific aluminum mounting rails
• TIGHT BITE clamps and mounting hardware
• Integrated locking and release components
• Installation instructions

Ideal For

A great choice for Silverado and Sierra owners who want hard-cover security with a clean, low-profile appearance. The aluminum construction and automatic locking system help protect tools, equipment, luggage, and everyday cargo while keeping items concealed inside the bed.