BAK 450120 BAKFlip MX4 Hard Folding Tonneau Cover for 2019-2026 GMC Sierra

Vehicle Fitment

• 2019-2026 GMC Sierra 1500 (GMT T1XX Platform, 6.5 ft Bed, All Trims, 2WD/4WD)
• 2019-2026 Chevrolet Silverado 1500 (GMT T1XX Platform, 6.5 ft Bed, All Trims, 2WD/4WD)

Fitment Notes

• Designed for 6.5 ft bed configurations only.
• Compatible with select MultiPro/Flex tailgate-equipped applications when properly configured.
• Not compatible with 5.8 ft or 8 ft bed configurations.
• Verify exact bed length and factory cargo management options before installation.

Features

• BAKFlip MX4 hard folding tonneau cover design
• Heavy-duty aluminum panel construction for enhanced durability
• Premium matte finish provides improved scratch and UV resistance
• Tri-fold design allows partial or full truck bed access
• Automatic latching panels secure the cover when closed
• Dual-action tailgate seal allows tailgate operation with cover open or closed
• Flush-mount low-profile design improves truck appearance
• Integrated buckle system secures cover when folded upright

Specifications

• Brand: BAK Industries
• Part Number: 450120
• Product Line: BAKFlip MX4
• Product Type: Hard Folding Truck Bed Tonneau Cover
• Vehicle Application: GMC Sierra 1500 / Chevrolet Silverado 1500
• Bed Length: 6.5 ft bed
• Material: Aluminum panels with matte finish
• Mounting Position: Truck bed rails
• Opening Style: Folding tri-panel design
• Weight Rating: Up to 400 lb evenly distributed load

Included Components

• 1x BAKFlip MX4 Cover Assembly
• 1x Driver Side Rail Assembly
• 1x Passenger Side Rail Assembly
• 1x Mounting Hardware Kit
• 2x Drain Tubes

Product Description

The BAK 450120 BAKFlip MX4 Hard Folding Tonneau Cover provides durable cargo protection and versatile truck bed access for 2019-2026 GMC Sierra 1500 and Chevrolet Silverado 1500 models equipped with the 6.5 ft bed. Built with heavy-duty aluminum panels and a premium matte finish, the MX4 delivers a secure, low-profile appearance while helping protect cargo from weather and everyday use.

The tri-fold MX4 design allows drivers to access the truck bed in multiple positions, from partial opening for quick loading to full folding for maximum cargo space. Its automatic latching system, integrated buckle system, and dual-action tailgate seal provide convenient operation and reliable security. 

Engineered specifically for compatible GM full-size pickup applications, the BAK 450120 installs using a vehicle-specific mounting system and maintains normal tailgate functionality. It is an ideal upgrade for truck owners seeking improved bed security, weather protection, and everyday versatility.