The BAKFlip MX4 is a hard folding tonneau cover configured for the exact truck, bed length, cab, body generation and bed options listed below. Confirm every fitment and application detail because covers for similar trucks or different bed configurations are not interchangeable.
Key Features
Fitment
| Years | Make | Model | Application |
|---|---|---|---|
| 2014-2018 | Chevrolet | Silverado 1500 | 5ft 9in Bed |
| 2019 | Chevrolet | Silverado 1500 | Legacy | 5ft 9in Bed |
| 2014-2018 | GMC | Sierra 1500 | 5ft 9in Bed |
| 2019 | GMC | Sierra 1500 | Limited | 5ft 9in Bed |
Specifications
| Brand | BAK |
|---|---|
| Manufacturer Part Number | 450120 |
| Product Type | Tonneau Covers - Hard Fold |
| Cover Configuration | Hard folding tonneau cover |
| Condition | New |
| Required Vehicle Configuration | 5ft 9in Bed |
| Fitment Basis | Exact year, make, model, trim, bed length, cab and bed-option configuration |
What's Included
One new BAK product identified by manufacturer part number 450120. Cover panels or slats, rails, clamps, seals, drainage components, hardware and instructions are included only when specified for this exact part.
About BAK
BAK manufactures hard-folding and hard-rolling tonneau covers plus replacement components for exact truck-bed applications. Cover family, truck generation, bed length and bed options determine compatibility.
Related BAK Products
Frequently Asked Questions
Will this BAK cover fit my 2014-2018 Chevrolet Silverado 1500?
Match every fitment row plus the bed length, cab, body generation, RamBox, CarbonPro, track system, tailgate and other application notes shown for this exact part.
Does the cover provide full bed access?
The folding and rolling operation depends on the exact BAK family. Confirm the opening method, secured driving positions and rear-window clearance in the specifications and current instructions.
Will it work with a toolbox or bed rack?
Compatibility depends on the toolbox position, rail profile and accessory interface. T-slot-equipped models support only compatible attachments, and standard covers should not be assumed to fit every rack or toolbox.
Does the cover make the truck bed waterproof?
Tonneau covers are weather resistant rather than fully waterproof. Correct rail alignment, seals, drainage and tailgate condition help limit water entry.
Can I install it without drilling?
Installation varies by truck and cover. Follow the current instructions for this exact part number and do not assume another BAK kit uses the same rails, clamps or drilling requirements.
Installation Instructions
Important Disclosures
California Proposition 65 warning applies. Review the current manufacturer warning before handling or installation.
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