---
product_id: 54888377
title: "BAKFlip MX4 Hard Fold Truck Bed Tonneau Cover for 2017-2027 Ford F250/F350"
brand: "realtruck"
price: "$5190.29"
currency: USD
in_stock: true
category: "Real Truck"
url: https://www.desertcart.us/products/54888377-bakflip-mx4-hard-fold-truck-bed-tonneau-cover-for-2017
store_origin: US
region: United States of America
---

# Advanced weatherproof seals & clamps Patented auto-latch locking system 22% stronger aluminum alloy build BAKFlip MX4 Hard Fold Truck Bed Tonneau Cover for 2017-2027 Ford F250/F350

**Brand:** realtruck
**Price:** $5190.29
**Availability:** ✅ In Stock

## Summary

> 🚛 Lock it down, weather it out, and own the road with BAKFlip MX4.

## Quick Answers

- **What is this?** BAKFlip MX4 Hard Fold Truck Bed Tonneau Cover for 2017-2027 Ford F250/F350 by realtruck
- **How much does it cost?** $5190.29 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/54888377-bakflip-mx4-hard-fold-truck-bed-tonneau-cover-for-2017)

## Best For

- realtruck enthusiasts

## Why This Product

- Trusted realtruck brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Built for Extremes:** Tested from -40℉ to 180℉ and 0-95% humidity, backed by a 5-year warranty for peace of mind.
- • **Unmatched Security:** Patented auto-latching locks keep your gear theft-proof without extra effort.
- • **Seamless Bed Access:** Fold the cover flush to the cab for 100% bed access anytime—parked or on the move.
- • **Weatherproof Warrior:** State-of-the-art EPDM seals and tight clamps block out rain, snow, and dust—no compromises.
- • **Effortless Installation:** Click-in rail system cuts install time by 12%, so you’re ready to roll faster.

## Overview

The BAKFlip MX4 Gen 3 is a premium hard folding tonneau cover designed specifically for 2017-2026 Ford F-250/350 Super Duty 8' 2" beds. Featuring a reinforced aluminum alloy construction with a 22% strength boost, patented auto-latching locks for enhanced security, and advanced weatherproof seals, it delivers unmatched durability and protection. Tested in extreme climates and backed by a 5-year warranty, it offers full bed access with a sleek, low-profile design and faster installation via a click-in rail system.

## Description

The best-selling truck bed cover in the world just got better. Introducing the new and improved RealTruck BAKFlip® MX4 (GEN3 Model Year 2025)—an evolution of RealTruck’s most popular tonneau cover. This next-generation upgrade builds on everything truck owners already love about MX4, now enhanced with improved functionality, greater durability, and elevated security. The new and improved BAKFlip MX4 is constructed primarily from alloy materials, including heavy-duty aluminum top panels and side rails. Reinforced with high-density polymer cores, each panel delivers a 22 percent increase in overall strength compared to the original model. Security is also enhanced. In addition to BAK’s patented auto-latching system, which automatically secures the cover when closed, the BAKFlip MX4 (GEN3) features re-engineered lock components for improved resistance to forced entry compared to the GEN2. No matter the cargo you’re transporting, you can rest assured knowing your gear’s protected. When the weather turns, the BAKFlip MX4 (GEN3) holds strong. Revised EPDM rubber perimeter seals and tight-fit clamps provide our best seal yet, preventing seepage between the bed cover and bed rails. At the rear of the cover, a 13 percent longer dual-action tailgate seal provides weather protection for the tailgate. The BAKFlip MX4 isn’t only durable, it’s also sleek and stylish. Unlike competitors, the BAKFlip MX4 sits flush with your pickup’s bed rails, practically disappearing into your truck’s profile. And with a sleek, textured matte black finish across all surfaces, the MX4 looks great whether open or closed. Installation is streamlined thanks to an improved click-in mounting system, reducing setup time by 12 percent. Operating the cover is just as simple—drop the tailgate, release the rear latch mechanism, and fold the cover toward the bulkhead. If full bed access is required, fold the cover flush against the rear window—third brake light visibility remains unobstructed in any position.

## Features

- Fits 2017 - 2027 Ford F-250/350 Super Duty 8' 2" Bed (98.1")
- THE ORIGINAL. OFTEN IMITATED. NEVER DUPLICATED | MX4 defined the hard folding category—and still sets the benchmark with patented features, premium materials, and a proven design built to perform.
- BEST-IN-CLASS AUTOMATIC SECURITY COMES STANDARD | The patented auto-latch system engages immediately on closure—no separate locking action required—so your gear is locked down the moment it closes.
- SEALED EDGE-TO-EDGE TO KEEP WEATHER OUT | Advanced seals and precision-fit clamps create a tight, edge-to-edge barrier to block out the elements and keep your cargo dry.
- BUILT STRONGER. BUILT BETTER. BUILT TO LAST | Premium-grade, multi-layer aluminum construction over a high-density core delivers a stronger, more durable surface that’s tested for years of reliable performance. Don't settle for single-layer construction that bends under pressure.
- EASY ONE-PERSON INSTALL. UNDER 30 MINUTES | The simple click-in design lets you install it yourself in under 30 minutes—no extra hands required, and no drilling required for most trucks.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B06XHWT8SN |
| Automotive Fit Type | Vehicle Specific Fit |
| Best Sellers Rank | #38,187 in Automotive ( See Top 100 in Automotive ) #102 in Truck Tonneau Covers |
| Brand Name | RealTruck |
| Customer Reviews | 4.1 4.1 out of 5 stars (687) |
| Exterior Finish | Aluminum |
| Global Trade Identification Number | 00819275042390 |
| Included Components | Applicable Hardware, Installation Guide, Tonneau Cover |
| Item Highlight | Fits 2017 - 2027 Ford F-250/350 Super Duty 8' 2"Bed (98.1") | 448331 | |
| Item Type Name | BAKFlip MX4 Hard Folding Truck Bed Tonneau Cover | 448331 | fits 2017-19 Ford Super Duty 8' bed |
| Item Weight | 71 pounds |
| Lock Type | Tailgate |
| Manufacturer | Bak |
| Manufacturer Part Number | 448331 |
| Manufacturer Warranty Description | Extended 5 Year Warranty |
| Material Type | Aluminum |
| Model Number | 448331 |
| Number of Items | 1 |
| OEM Equivalent Part Number | 448331 |
| Style Name | MX4: America’s Top Seller |
| UPC | 819275031141 819275042390 605994513866 |
| Unit Count | 1 Count |

## Product Details

- **Brand:** RealTruck
- **Exterior Finish:** Aluminum
- **Lock Type:** Tailgate
- **Material:** Aluminum
- **Style:** MX4: America’s Top Seller

## Images

![BAKFlip MX4 Hard Fold Truck Bed Tonneau Cover for 2017-2027 Ford F250/F350 - Image 1](https://m.media-amazon.com/images/I/61afQPOX48L.jpg)

## Available Options

This product comes in different **Size, Style** options.

## Questions & Answers

**Q: Does the BAKFlip MX4 require drilling to install?**
A: No drilling required. The clamp-on install secures directly to your truck bed rails, typically completed in under 30 minutes.

**Q: Will the MX4 fit my specific truck?**
A: Yes. Each cover is model-specific, engineered to fit your exact truck make, model, and year for a secure, flush fit.

**Q: How well does the cover seal against weather?**
A: Revised EPDM perimeter seals and tight-fit clamps create an edge-to-edge barrier, tested from -40°F to 180°F, with dual drain tubes to channel moisture away.

**Q: Is it compatible with bed liners?**
A: Yes, the BAKFlip MX4 is compatible with both spray-in and drop-in bed liners.

**Q: How much stronger is the MX4 than earlier generations?**
A: Multi-layer aluminum construction with a high-density polymer core delivers 22% greater strength versus earlier models.

## Frequently Bought Together

- BAK BAKFlip MX4 Hard Folding Truck Bed Tonneau Cover | 448331 | Fits 2017 - 2023 Ford F-250/350 Super Duty 8' 2" Bed (98.1")
- Westin 50-6415 Black Rubber Truck Bed Mat fits 2017-2022 F-250 F-350 Super Duty (8' Bed)
- Husky Liners Weatherbeater Floor Mats | Fits 2017 - 2024 Ford F-250/F-350/F-450 SuperCrew Cab with Factory Carpet & with Fold Flat Storage | Front & 2nd Row, 3-pc Black - 94061

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-11-12*