6 Best 5th Wheel Tailgates That Improve Airflow

Anyone who has spent time hauling a 5th wheel knows the distinct feeling of the truck bed acting like a giant parachute catching every gust of wind. Upgrading to a flow-through tailgate isn’t just about aesthetics; it is a functional necessity for better fuel economy and reduced trailer sway. These specialized gates are the unsung heroes of a smooth, efficient towing experience.

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Why Airflow Matters for 5th Wheel Towing

When you tow a 5th wheel, your factory tailgate creates a pocket of high-pressure air directly behind the cab. This "air dam" effect forces wind to swirl violently in the truck bed, which creates drag and can actually destabilize your trailer at highway speeds. By allowing air to pass through the tailgate, you effectively neutralize this pressure zone.

Beyond the physics of aerodynamics, there is the practical matter of convenience. A flow-through gate provides easier access to your hitch and pin box without having to hop over or constantly lower a heavy steel tailgate. It is a simple modification that pays dividends in both fuel savings and reduced driver fatigue over long hauls.

Flow-Through Design: The Stromberg Carlson 100 Series

The Stromberg Carlson 100 Series is the industry standard for a reason. Its louvered design is specifically engineered to let air pass through while maintaining enough structure to keep your gear secure in the bed. If you want a reliable, no-nonsense solution that just works, this is your go-to.

I often recommend this to folks who prioritize functionality over flash. It’s lightweight, easy to install, and won’t break the bank. If you are looking for a "set it and forget it" tailgate that handles the rigors of full-time towing, the 100 Series is the most balanced choice on the market.

Husky Liners 5th Wheel Tailgate: Durability Focus

If your truck sees as much work on the job site as it does on the campground, the Husky Liners tailgate is built to handle that abuse. Constructed from high-strength steel, this gate is designed to withstand the accidental bumps and scrapes that come with living a nomadic, active lifestyle. It features a robust latch system that feels solid and secure, even on bumpy forest service roads.

The trade-off here is weight; it is heavier than the aluminum or composite alternatives. However, for those who value structural integrity above all else, the peace of mind is worth the extra pounds. Choose this if you are hard on your equipment and need a gate that won’t show its age after a single season.

Dee Zee Aluminum Mesh Gate: Best Weight Reduction

Weight is the enemy of efficiency, and the Dee Zee Aluminum Mesh gate addresses this head-on. Because it is crafted from lightweight aluminum, it is incredibly easy to remove and store when you aren’t towing. The mesh design offers maximum airflow, which is ideal if you are trying to squeeze every last mile per gallon out of your tow vehicle.

This is the perfect choice for the minimalist traveler who wants to keep their payload capacity high. It looks sleek, resists rust, and provides excellent visibility when backing into tight RV spots. If you prioritize fuel economy and ease of handling, this is the superior option.

Custom Flow 5th Wheel Tailgate: Aerodynamic Design

The Custom Flow tailgate uses a unique, angled louver design that is specifically tuned for aerodynamics. Rather than just letting air through, it helps "guide" the wind away from the back of the truck, further reducing the turbulence that can cause trailer sway. It is one of the most sophisticated designs for those who frequently navigate high-wind areas.

While it is slightly more expensive than basic mesh models, the aerodynamic advantage is noticeable on long, flat stretches of highway. If you are towing a large, heavy 5th wheel that seems prone to buffeting, this gate provides the stability you need. It is a smart investment for the serious long-distance tower.

BetterBuilt V-Gate: Heavy Duty Steel Construction

The V-Gate style is a classic for a reason: it offers massive clearance for the 5th wheel pin box while remaining incredibly strong. The BetterBuilt version is constructed from heavy-duty steel, making it virtually indestructible. It is designed for those who need to get their hitch setup exactly right without worrying about clearance issues.

Be aware that this style offers less "bed security" than a louvered gate, as the open V-shape is quite large. However, if your primary goal is avoiding contact between your truck and your trailer during tight turns, this is the gold standard. It’s a tool built for a specific job, and it performs that job exceptionally well.

Go Industries Air Flow Gate: Classic V-Style Build

Go Industries is known for high-quality American manufacturing, and their Air Flow gate is no exception. It features a clean, professional aesthetic that looks great on any truck, from a work-worn pickup to a brand-new dually. The tubular steel construction is both rigid and lightweight enough for one person to handle.

This gate strikes a great balance between the ruggedness of the V-Gate and the refined look of a louvered system. It is ideal for the RVer who wants a professional-grade product that doesn’t look like a DIY project. If you want a tailgate that matches the quality of your truck, go with Go Industries.

Installation Tips for 5th Wheel Tailgates

Most aftermarket tailgates are designed to use your truck’s factory mounting points, but don’t assume a perfect fit right out of the box. Always have a second set of hands available to help with the initial alignment; a tailgate is awkward to hold in place while you tighten the hardware. Use a light coating of anti-seize on the bolts to ensure you can remove the gate easily when you need to switch back to your factory tailgate.

• Check your clearance: Always perform a "dry run" with your trailer hitched to ensure the tailgate doesn’t interfere with the pin box during sharp turns.
• Test the latches: Ensure the latches are greased and snap shut firmly before you hit the road.
• Safety cables: Never skip installing the safety cables; they are your last line of defense if a latch fails.

Balancing Weight and Fuel Efficiency Benefits

The goal of a 5th wheel tailgate is to reduce drag, but don’t expect a miracle. While you will likely see a modest improvement in fuel efficiency and a significant improvement in handling, your truck is still pulling a large, non-aerodynamic object. Focus on the stability benefits first, and consider the fuel savings as a bonus.

Keep in mind that removing your heavy factory tailgate and replacing it with a lighter aftermarket version can slightly change your truck’s weight distribution. While usually negligible, it is something to keep in mind if you are already pushing your payload limits. Always weigh your rig at a CAT scale to ensure you are within safe operating parameters.

Maintenance for Your 5th Wheel Tailgate Setup

Because these gates are often exposed to more road debris than a standard tailgate, they require a bit of extra attention. Periodically inspect the welds and mounting brackets for signs of stress or rust, especially if you drive on salted roads in the winter. A quick spray of silicone lubricant on the latches will keep them operating smoothly for years.

If you have an aluminum gate, keep it clean to prevent oxidation from dulling the finish. For steel gates, touch up any paint chips immediately to prevent rust from spreading. By staying on top of these small tasks, you ensure your tailgate remains a reliable part of your towing setup for the long haul.

Investing in a quality 5th wheel tailgate is one of the most effective ways to improve your towing experience and protect your equipment. By choosing a design that suits your specific weight and durability needs, you can turn a stressful towing day into a smooth, efficient journey. Choose wisely, keep it maintained, and enjoy the open road with confidence.