---
product_id: 372017839
title: "BAK BAKFlip MX4 Hard Folding Truck Bed Tonneau Cover | 448339 | Fits 2021-2023 Ford F-150 (incl. Raptor/Lightning) 5' 7\" Bed (67.1\")"
brand: "realtruck"
price: "¥130870"
currency: JPY
in_stock: false
url: https://www.desertcart.jp/products/372017839-bak-bakflip-mx4-hard-folding-truck-bed-tonneau-cover-448339
store_origin: JP
region: Japan
---

# Supports up to 300 lbs evenly distributed Automatic latching for enhanced security Fits 2015-2020 Ford F-150 5'7" bed BAK BAKFlip MX4 Hard Folding Truck Bed Tonneau Cover | 448339 | Fits 2021-2023 Ford F-150 (incl. Raptor/Lightning) 5' 7" Bed (67.1")

**Brand:** realtruck
**Price:** ¥130870
**Availability:** ❌ Out of Stock

## Summary

> 🔐 Lock in style and security with the BAKFlip G2 – your truck’s ultimate upgrade!

## Quick Answers

- **What is this?** BAK BAKFlip MX4 Hard Folding Truck Bed Tonneau Cover | 448339 | Fits 2021-2023 Ford F-150 (incl. Raptor/Lightning) 5' 7" Bed (67.1") by realtruck
- **How much does it cost?** ¥130870 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/372017839-bak-bakflip-mx4-hard-folding-truck-bed-tonneau-cover-448339)

## 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

- • **Effortless Security:** Automatic latching system with quick-release cables for peace of mind on the go
- • **Weatherproof Design:** Full-perimeter seals and dual drain tubes keep your cargo dry rain or shine
- • **Sleek Low-Profile Look:** Flush mount design maintains your truck’s clean, factory-fresh appearance
- • **Seamless Truck Bed Access:** Drive with cover closed, folded, or flipped without blocking your 3rd brake light
- • **Rugged Aluminum Durability:** Hard shell panels built to protect and last longer than vinyl covers

## Overview

The BAKFlip G2 Hard Folding Truck Bed Tonneau Cover is a USA-made, aluminum hard shell cover designed specifically for 2015-2020 Ford F-150 5'7" beds. It offers full bed access with a low-profile design that doesn’t block the 3rd brake light, supports up to 300 lbs of evenly distributed weight, and features an automatic latching system for enhanced security. Weatherproof seals and dual drain tubes protect cargo from rain, while prop rods provide hands-free convenience when open. Backed by a 2-year warranty and US-based support, it’s the smart, stylish choice for professional truck owners who demand durability and functionality.

## Description

The BAKFlip MX4 was the first matte-finished, hard folding cover to market, becoming America’s #1 Selling Hard Folding Cover in just a few years. Simply put, the MX4 just looks better than other covers. Its sleek no-profile appearance allows you to maintain the appearance of your truck, while enabling you to securely stow cargo in the bed. The MX4’s pioneering, textured matte-finish adds a premium look and feel while also protecting against UV damage, annoying finger print marks, and scratches. MX4 has everything you expect from a premium cover. The engineers at BAK Industries fine-tuned even the smallest elements of the cover, down to adding cab corner caps and rail-end cap, to extending a matte-finish throughout the cover’s side rails, clamps, and elevator bolts. The MX4’s integrated buckle system and automatic latching mechanism allows you to drive with the cover partially or fully opened without covering the 3rd brake light. For 100% bed access, simply unlock the cover from either side via its pull latches and fold the cover all the way up against the cab. From there, you can prop the cover in place by tightening two rods into the underside of the panel. For enhanced durability, the MX4 also features pre-molded, shock-absorbent bumpers on either side of the panel, protecting the folded panels from hitting the cover during turbulent driving. Rain or shine, the MX4 provides confident cargo storage that’s complete with dual drain tubes to divert water away from the truck bed, as well as full perimeter seals to help protect against water intrusion.

## Features

- Fits 2021 - 2022 Ford F-150 5' 7" Bed (67.1") NEW! Precisely engineered for compatibility with Ford’s unique truck bed and its automatic tailgate feature
- ULTIMATE SECURITY | The BAKFlip MX4 tonneau cover has durable aluminum panels that automatically latch as the cover is partially or fully closed, and is fully locked once your tailgate is closed
- STYLISH MATTE FINISH | Featuring matte-finished aluminum panels, protecting against marks, scratches and UV damage; as well as premium upgrades to the perimeter seals and hardware
- 100% BED ACCESS | Operate this cover closed, folded or flipped up, all without covering the 3rd brake light. Paired with a dual action tailgate seal for tailgate operation open or closed
- WE’VE GOT YOUR BAK | The MX4 truck bed cover is rated up to 400 lbs of evenly distributed weight and is easy to install. This hard fold has a 5-year, hassle-free warranty, with a US-based support team

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08L44X6NZ |
| Automotive Fit Type | Vehicle Specific Fit |
| Best Sellers Rank | #132,800 in Automotive ( See Top 100 in Automotive ) #64 in Car Tonneau Covers |
| Brand Name | RealTruck |
| Customer Reviews | 4.3 4.3 out of 5 stars (646) |
| Exterior Finish | Matte Aluminum |
| Global Trade Identification Number | 00192631033097 |
| Included Components | tonneau cover | hardware kit | install guide |
| Item Type Name | truck bed tonneau cover |
| Lock Type | Tailgate |
| Manufacturer | BAK Industries |
| Manufacturer Part Number | 448339 |
| Manufacturer Warranty Description | 2 |
| Material Type | Aluminum |
| Model Number | 448339 |
| Number of Items | 1 |
| OEM Equivalent Part Number | 448339 |
| Style Name | 2021 - 2022 |
| UPC | 192631033097 |
| Unit Count | 1 Count |
| Weight Capacity Maximum | 400 Pounds |

## Product Details

- **Brand:** RealTruck
- **Exterior finish:** Matte Aluminum
- **Lock type:** Tailgate
- **Material:** Aluminum
- **Style:** 2021 - 2022

## Images

![BAK BAKFlip MX4 Hard Folding Truck Bed Tonneau Cover | 448339 | Fits 2021-2023 Ford F-150 (incl. Raptor/Lightning) 5' 7" Bed (67.1") - Image 1](https://m.media-amazon.com/images/I/61Q0aozyebL.jpg)

## Available Options

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

## Questions & Answers

**Q: Does it fit a chevy truck? All I see is ford**
A: The BAK BAKFlip MX4 Hard Folding Truck Bed Tonneau Cover you mentioned, with part number 448339, is specifically listed as fitting the 2021 - 2023 Ford F-150 models with a 5' 7" bed.

Based on the information provided, it appears that this particular tonneau cover is designed and intended for Ford F-150 trucks, and there is no indication of it being compatible with Chevy trucks.

If you are looking for a tonneau cover for your Chevy truck, I would recommend looking for options specifically designed to fit your Chevy model and bed size. It's important to ensure that the tonneau cover you choose is compatible with the specific make, model, and bed size of your truck to ensure proper fitment and functionality.

**Q: where is the part number located.? I don’t see no white sticker on bottom and no box**
A: I can't help you.  I got a Bak Flip G2.

**Q: How durable is the MX4? Read many reviews of this tonneau cover denting easily.**
A: Its as tough as they come. I've had my 4 year old nephew standing on it and no flex at all. Plus its so easy to install and operate, hell my wife finds it easy to use. Its made with top notch materials and looks great on the truck. I had friends see mine and bought one just from sight. we love ours and have no issues with it at all. 
Its a solid buy!!

**Q: Will this fit a 2023 f150**
A: With a New Model Year F-150 it would be best to contact the manufacturer directly. Although they do reference it fitting 2021-2023. Mine is an Older Model and it fit correctly.

## Frequently Bought Together

- RealTruck BAK BAKFlip MX4 Hard Folding Truck Bed Tonneau Cover | 448339 | Fits 2021-2025 Ford F-150 (incl. Raptor/Lightning) 5' 7" Bed (67.1")
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**Shop now:** [https://www.desertcart.jp/products/372017839-bak-bakflip-mx4-hard-folding-truck-bed-tonneau-cover-448339](https://www.desertcart.jp/products/372017839-bak-bakflip-mx4-hard-folding-truck-bed-tonneau-cover-448339)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-10-10*