BAK 448331 BAKFlip MX4 Hard Folding Tonneau Cover for 17-26 F250/F350 8'2" Bed

Vehicle Fitment

• 2017-2026 Ford F-250 Super Duty (8'2" / 98.1" bed)
• 2017-2026 Ford F-350 Super Duty (8'2" / 98.1" bed)
• 2017-2026 Ford F-450 Super Duty (8'2" / 98.1" bed)

Fitment Notes

• 8'2" (98.1") bed length only -- does not fit 6'9" short bed
• Fits all cab configurations (Regular, SuperCab, Crew Cab)
• No-drill clamp-on installation -- no cutting or trimming required
• Compatible with factory bed accessories and stake hole pockets
• Dual-action tailgate seal allows tailgate operation with cover open or closed
• Install time: approximately 30 minutes with basic hand tools

Features

• Gen 3 design -- 22% stronger than previous generation
• Heavy-duty aluminum panels with high-density polymer core
• Textured matte black finish -- UV and scratch resistant
• Patented auto-latching system -- secures automatically when closed
• Re-engineered lock components for improved forced entry resistance
• EPDM rubber perimeter seals and tight-fit clamps for weather protection
• 13% longer dual-action tailgate seal vs. previous generation
• Flush-mount low-profile design sits level with bed rails
• 100% bed access -- folds to cab without blocking third brake light
• Integrated buckle system for secure highway driving with cover open
• Tested from -40°F to 180°F, 0-95% humidity

Specifications

• Series: BAKFlip MX4 (Gen 3)
• Type: Hard folding tri-fold tonneau cover
• Panel Material: Heavy-duty aluminum with high-density polymer core
• Finish: Textured matte black
• Bed Length: 8'2" (98.1")
• Panel Count: 4 (long bed)
• Weight Capacity: 400 lbs (evenly distributed, cover closed)
• Mounting: No-drill tight-fit clamp-on
• Seals: EPDM rubber perimeter + dual-action tailgate seal
• Locking: Patented auto-latch (secured when tailgate locked)
• Made in USA (Missouri) with globally sourced materials
• Warranty: 5-year limited

Included Components

• 1x BAKFlip MX4 hard folding tonneau cover assembly (4 panels)
• 2x Aluminum side rails
• 1x Tight-fit clamp and hardware kit
• 1x EPDM perimeter seal set
• 1x Dual-action tailgate seal
• 1x Drain tube kit
• 1x Prop rod clips
• 1x Installation instructions

Product Description

The BAK 448331 BAKFlip MX4 (Gen 3) is a hard folding tri-fold tonneau cover for the 2017-2026 Ford F-250, F-350, and F-450 Super Duty with the 8'2" (98.1") bed. The Gen 3 design features heavy-duty aluminum panels reinforced with high-density polymer cores -- 22% stronger than the previous generation -- with a textured matte black finish that resists UV damage and scratches. BAK's patented auto-latching system secures the cover automatically when partially or fully closed, with re-engineered lock components for improved resistance to forced entry when the tailgate is locked.

Revised EPDM rubber perimeter seals and tight-fit clamps deliver the best weather protection in the MX4 lineup, while a 13% longer dual-action tailgate seal weatherproofs the tailgate and allows full tailgate operation with the cover open or closed. The flush-mount design sits level with the bed rails for a clean, low-profile appearance. Folds completely to the cab for 100% bed access without blocking the third brake light. The click-in rail system installs in approximately 30 minutes with no drilling. Tested from -40°F to 180°F. Made in the USA and backed by a 5-year limited warranty.