--- product_id: 466781084 title: "BAKFlip MX4 Hard Folding Truck Bed Tonneau Cover for 2021-2027 Ford F150" brand: "realtruck" price: "¥725240" currency: JPY in_stock: true category: "Real Truck" url: https://www.desertcart.jp/products/466781084-bakflip-mx4-hard-folding-truck-bed-tonneau-cover-for-2021 store_origin: JP region: Japan --- # Advanced weatherproof seals Patented auto-latch locking system 22% stronger alloy construction BAKFlip MX4 Hard Folding Truck Bed Tonneau Cover for 2021-2027 Ford F150 **Brand:** realtruck **Price:** ¥725240 **Availability:** ✅ In Stock ## Summary > 🚛 Lock it down, rain or shine — the ultimate truck bed upgrade you can’t afford to miss! ## Quick Answers - **What is this?** BAKFlip MX4 Hard Folding Truck Bed Tonneau Cover for 2021-2027 Ford F150 by realtruck - **How much does it cost?** ¥725240 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/466781084-bakflip-mx4-hard-folding-truck-bed-tonneau-cover-for-2021) ## 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℉ with a 5-year warranty for peace of mind. - • **Sleek & Effortless:** Flush-mount matte-black finish with a click-in rail system cuts install time by 12%. - • **Unmatched Security:** Patented auto-latch locks keep your gear theft-proof with zero hassle. - • **Seamless Bed Access:** Fold fully to the cab for 100% bed access without blocking your brake light. - • **Weatherproof Warrior:** State-of-the-art EPDM seals and tight clamps block out rain, snow, and dust. ## Overview The RealTruck BAKFlip MX4 Gen 3 is a premium hard folding tonneau cover designed specifically for 2021-2026 Ford F-150 8' 2" beds. Featuring a patented auto-latch locking system, reinforced aluminum construction with a 22% strength boost, and advanced weatherproof seals, it delivers superior security, durability, and protection in extreme climates. Its sleek, low-profile design offers full bed access with easy folding, backed by a 5-year warranty and quick installation. ## 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 2021 - 2027 Ford F-150 8' 2" Bed (97.6") - 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 | B08L455C1J | | Automotive Fit Type | Vehicle Specific Fit | | Best Sellers Rank | #13,706 in Automotive ( See Top 100 in Automotive ) #28 in Truck Tonneau Covers | | Brand | RealTruck | | Brand Name | RealTruck | | Customer Reviews | 4.2 out of 5 stars 763 Reviews | | Exterior Finish | Aluminum | | Included Components | tonneau cover | hardware kit | install guide | | Item Highlight | Fits 2021 - 2027 Ford F-150 8' 2"Bed (97.6") | 448338 | | | Item Type Name | truck bed tonneau cover | | Item Weight | 16 ounces | | Lock Type | Tailgate | | Manufacturer | BAK Industries | | Manufacturer Part Number | 448338 | | Manufacturer Warranty Description | Extended 5-Year | | Material | Aluminum | | Material Type | Aluminum | | Model Number | 448338 | | Number of Items | 1 | | OEM Equivalent Part Number | 448338 | | Style | MX4: America’s Top Seller | | Style Name | MX4: America’s Top Seller | | UPC | 192631033271 | | 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 Folding Truck Bed Tonneau Cover for 2021-2027 Ford F150 - Image 1](https://m.media-amazon.com/images/I/61Q0aozyebL.jpg) ![BAKFlip MX4 Hard Folding Truck Bed Tonneau Cover for 2021-2027 Ford F150 - Image 2](https://m.media-amazon.com/images/I/81z3dEyZ0tL.jpg) ![BAKFlip MX4 Hard Folding Truck Bed Tonneau Cover for 2021-2027 Ford F150 - Image 3](https://m.media-amazon.com/images/I/81n3SonCXXL.jpg) ![BAKFlip MX4 Hard Folding Truck Bed Tonneau Cover for 2021-2027 Ford F150 - Image 4](https://m.media-amazon.com/images/I/81ilihDJAxL.jpg) ![BAKFlip MX4 Hard Folding Truck Bed Tonneau Cover for 2021-2027 Ford F150 - Image 5](https://m.media-amazon.com/images/I/71XMA-6ff+L.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 - RealTruck BAK BAKFlip MX4 Hard Folding Truck Bed Tonneau Cover | 448338 | Fits 2021-2025 Ford F-150 8' 2" Bed (97.6") - RYDONAIR Short Antenna Compatible with Ford F150 2009-2025 & Ford Bronco 2021-2025, Internal Copper Coil for Enhanced Reception, Car Wash Proof, 7 inches Rubber Antenna Replacement - BuiltRight Industries Rear Seat Release for Ford F-150 (2009+), F-250/350 (2017+) - The Original, Made in USA --- ## 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.jp/products/466781084-bakflip-mx4-hard-folding-truck-bed-tonneau-cover-for-2021](https://www.desertcart.jp/products/466781084-bakflip-mx4-hard-folding-truck-bed-tonneau-cover-for-2021) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-11-15*