--- product_id: 447959682 title: "BAK BAKFlip MX4 Hard Folding Truck Bed Tonneau Cover | 448440 | Fits 2022-2026 Toyota Tundra 5' 7\" Bed (66.7\")" brand: "realtruck" price: "$3722.28" currency: USD in_stock: true reviews_count: 11 category: "Real Truck" url: https://www.desertcart.us/products/447959682-bak-bakflip-mx4-hard-folding-truck-bed-tonneau-cover-448440 store_origin: US region: United States of America --- # Advanced weatherproof seals & clamps Patented auto-latch locking system 22% stronger alloy-polymer build BAK BAKFlip MX4 Hard Folding Truck Bed Tonneau Cover | 448440 | Fits 2022-2026 Toyota Tundra 5' 7" Bed (66.7") **Brand:** realtruck **Price:** $3722.28 **Availability:** ✅ In Stock ## Summary > 🔐 Lock it down, rain or shine—your truck’s new best friend. ## Quick Answers - **What is this?** BAK BAKFlip MX4 Hard Folding Truck Bed Tonneau Cover | 448440 | Fits 2022-2026 Toyota Tundra 5' 7" Bed (66.7") by realtruck - **How much does it cost?** $3722.28 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/447959682-bak-bakflip-mx4-hard-folding-truck-bed-tonneau-cover-448440) ## 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. - • **Seamless Bed Access:** 100% bed access anytime—fold the cover flush to the cab without blocking your brake light. - • **Weatherproof Warrior:** State-of-the-art EPDM seals and tight clamps block out rain, snow, and dust—no more soggy cargo. - • **Unmatched Security Lockdown:** Patented auto-latching system keeps your gear theft-proof with tamper-resistant locks. - • **Effortless Installation & Sleek Design:** Click-in rails cut install time by 12%, with a flush-mount matte-black finish that elevates your truck’s style. ## Overview The RealTruck BAKFlip MX4 Gen 3 is a hard folding truck bed cover engineered specifically for 2022-2026 Toyota Tundra 5'7" beds. Featuring a patented auto-latch locking system, reinforced aluminum and polymer construction with 22% increased strength, and advanced weatherproof seals, it delivers superior security, durability, and all-weather protection. Designed for quick installation and full bed access, it combines rugged functionality with a sleek, low-profile matte-black finish. Tested in extreme climates and backed by a 5-year warranty, it’s the ultimate upgrade for serious truck owners. ## Description America’s best-selling truck bed cover just got even better.Introducing the BAKFlip MX4 Gen 3—the latest evolution of RealTruck’s most popular tonneau cover. Now better than ever, the BAK has redesigned the for improved strength, security, and all-weather performance. The Gen 3 MX4 features alloy-based construction, including heavy-duty aluminum side rails and top panels, reinforced with high-density polymer cores. This updated design delivers a 22 percent increase in strength over the previous generation, making it even more capable of handling daily use, heavy loads, and harsh environments. Security has also been upgraded. BAK’s patented auto-latching system secures the cover automatically when closed. Newly engineered lock components provide added resistance to tampering and forced entry, allowing you to transport your gear with confidence. In rough weather, the Gen 3 MX4 holds strong. Revised EPDM perimeter seals and tight-fit clamps offer the best seal yet, helping prevent water intrusion along the bed rails. A longer dual-action tailgate seal weatherproofs the tailgate while preserving full functionality, whether the cover is open or closed. While the MX4 is built tough, it doesn’t compromise on looks. The flush-mount design gives it a sleek, low-profile appearance, while a textured matte-black finish across all surfaces delivers a clean, subtle aesthetic. Installation is easier than ever with a new click-in rail system that cuts install time by up to 12 percent. Day-to-day use is just as simple—drop the tailgate, unlatch, and fold the cover forward. For complete bed access, fold the cover against the cab without blocking your third brake light. The BAKFlip MX4 Gen 3 is proudly assembled in Missouri using globally sourced materials and backed by a 5-year warranty. Review: Service On Next Level - Item Was As Expected - Solid Fit on 2023 Plat-Tundra - First of all I ordered this on a Saturday night around 7PM. Delivery said Wednesday which was great. Upon checking out the delivery moved up to Sunday. Thats right, next day. Going through the process in once again confirmed this date at checkout. Emails and text also confirmed next day delivery. Like promised, the next day it showed up at 1PM. Driver unloaded it in my garage and was super professional. Item was flawless and free from damage. Install took 20 minutes max. Helped to watch a quick video online related to the install first. Item fit like a glove as most have said online. The only issue I had was related to the front cargo bracket which Toyota didnt center correctly. Truck bed is dry and secure. desertcart is amazing on this item. Saved a couple of hundred bucks on the price and got service above what anyone could offer. It wasnt even close. So happy I made the call. 18 hour delivery is something no one else can touch folks! Review: The Best - Just got a 2026 Tundra Platinum. The bed cover is amazing. Easy to install and fantastic qyuality I HIGHLY recommend ## Features - Fits 2022 - 2026 Toyota Tundra 5' 7" Bed (66.7") - THE BEST-SELLING TRUCK BED COVER IN THE WORLD JUST GOT BETTER - NOW EVEN MORE SECURE THAN GEN 2 | The new BAKFlip MX4 comes with an updated design tested to keep your gear on theft-resistant lockdown with a patented and upgraded auto-latch locking system. - FITS TIGHTER TO KEEP WATER OUT | Improved seals and all-new tight-fit clamps provide state-of-the-art weather protection. - PROVEN FOR EXTREMES FROM ALASKA TO FLORIDA | Tested in the harshest conditions—from -40 to 180℉ and zero to 95% humidity—and guaranteed by a 5-year warranty. - NO WASTED BED SPACE, PARKED OR DRIVING | 100% bed access. All the time. Simply fold to the cab, easily secure, and safely drive with the cover fully open. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B09V1T8WNW | | Automotive Fit Type | Vehicle Specific Fit | | Best Sellers Rank | #54,004 in Automotive ( See Top 100 in Automotive ) #163 in Truck Tonneau Covers | | Brand | RealTruck | | Brand Name | RealTruck | | Customer Reviews | 4.2 out of 5 stars 219 Reviews | | Exterior Finish | Aluminum | | Global Trade Identification Number | 00192631044697 | | Included Components | Tonneau Cover, Install Guide, Applicable Hardware | | Item Type Name | Truck Bed Cover | | Item Weight | 71 Pounds | | Lock Type | Tailgate | | Manufacturer | BAK | | Manufacturer Part Number | 448440 | | Manufacturer Warranty Description | Extended 5-Year | | Material | Aluminum | | Material Type | Aluminum | | Model Number | 448440 | | OEM Equivalent Part Number | 448440 | | Style | BAKFlip MX4 | | Style Name | BAKFlip MX4 | | UPC | 192631044697 | | Unit Count | 1.0 Count | ## Product Details - **Brand:** RealTruck - **Exterior Finish:** Aluminum - **Lock Type:** Tailgate - **Material:** Aluminum - **Style:** BAKFlip MX4 ## Images ![BAK BAKFlip MX4 Hard Folding Truck Bed Tonneau Cover | 448440 | Fits 2022-2026 Toyota Tundra 5' 7" Bed (66.7") - Image 1](https://m.media-amazon.com/images/I/61mpK93Qg0L.jpg) ## Available Options This product comes in different **Size, Style** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Service On Next Level - Item Was As Expected - Solid Fit on 2023 Plat-Tundra *by C***A on February 12, 2024* First of all I ordered this on a Saturday night around 7PM. Delivery said Wednesday which was great. Upon checking out the delivery moved up to Sunday. Thats right, next day. Going through the process in once again confirmed this date at checkout. Emails and text also confirmed next day delivery. Like promised, the next day it showed up at 1PM. Driver unloaded it in my garage and was super professional. Item was flawless and free from damage. Install took 20 minutes max. Helped to watch a quick video online related to the install first. Item fit like a glove as most have said online. The only issue I had was related to the front cargo bracket which Toyota didnt center correctly. Truck bed is dry and secure. Amazon is amazing on this item. Saved a couple of hundred bucks on the price and got service above what anyone could offer. It wasnt even close. So happy I made the call. 18 hour delivery is something no one else can touch folks! ### ⭐⭐⭐⭐⭐ The Best *by A***Y on April 26, 2026* Just got a 2026 Tundra Platinum. The bed cover is amazing. Easy to install and fantastic qyuality I HIGHLY recommend ### ⭐⭐⭐⭐⭐ Factory bed rail cleats tie down anchors will not work and rod too long. *by K***G on October 23, 2025* Bought for my 2026 Trudra w/6.5’ bed. Easy to install. The metal rod that holds the panels in folding position is too long. One set back is the Toyota deck rail cleats that came with the truck will not work because of knob to tighten it down. Ordered drieaco aluminum truck bed tie down anchors to hope it will resolve my issue. Other than that it looks great. Update: Called Bakflip and they are sending me new rail that will resolve my problem. ## Frequently Bought Together - RealTruck BAK BAKFlip MX4 Hard Folding Truck Bed Tonneau Cover | 448440 | Fits 2022-2025 Toyota Tundra 5' 7" Bed (66.7") - Spigen Tempered Glass Screen Protector [GlasTR Slim] designed for Toyota Tundra(2025-2022), Sequoia(2025-2023), Tacoma(2024/2025), 4Runner(2025) 14 inch Dashboard Touchscreen - Matte/Anti Finger Print - TripleAliners Truck Bed Mat Compatible with 2022 2023 2024 2025 Toyota Tundra Accessories CrewMax 5.5FT Vehicle Perfectly Flush All Weather Protection TPE Heavy Duty Pickup Car Bed Cargo Mat --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.us/products/447959682-bak-bakflip-mx4-hard-folding-truck-bed-tonneau-cover-448440](https://www.desertcart.us/products/447959682-bak-bakflip-mx4-hard-folding-truck-bed-tonneau-cover-448440) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-07-14*