Trim Tabs & Accessories

What Are Trim Tabs and Why Do They Matter?

Trim tabs are among the most impactful upgrades a boater can make — and yet they're often overlooked. Trim tabs are adjustable plates mounted on either side of a boat's transom that control the hull's running angle in the water. By deflecting water flow beneath the stern, they create lift that raises the rear of the boat and lowers the bow, giving the operator precise control over pitch and roll in real time. Whether you're fighting a listing caused by uneven passenger weight, battling bow rise during acceleration, or trying to smooth out a choppy offshore chop, trim tabs put you in command of your boat's attitude at the touch of a button.

The practical benefits are significant. Trim tabs help get the hull onto a plane faster, which means your boat not only has better acceleration but also greater efficiency and higher top speeds. They can also significantly enhance fuel economy by optimizing the running angle, reduce drag, and improve visibility over the bow. They even help address common nuisances like porpoising — the cyclical bow-bouncing that wastes fuel and rattles passengers — by stabilizing the hull at its most efficient attitude. Simply put, trim tabs address problems that more horsepower alone cannot fix.

Trim tab systems typically consist of the stainless steel blade plates, electric or hydraulic actuators that control blade angle, mounting hardware, wiring harnesses, and helm-mounted control switches. Choosing the right size matters: a commonly used guideline is to select roughly one inch of blade span per foot of boat length, scaling up for heavier vessels or boats with limited transom space due to multiple engines.

Why Choose Lenco Trim Tabs?

Lenco Marine has spent more than three decades at the forefront of electric trim tab technology, earning a reputation as one of the marine industry's most trusted names in boat stability and control. Where traditional hydraulic systems can be complex and maintenance-intensive, Lenco's signature electric ball screw actuator design is praised for being more reliable, significantly more powerful, and delivering instant response — making them exceptionally user-friendly for boaters of all experience levels. The actuators are fully sealed and submersible, featuring plug-and-play Deutsch waterproof connectors for a clean, reliable installation.

Lenco's trim tab blades are built from heavy-gauge 304 stainless steel, designed to withstand the corrosive rigors of the marine environment season after season. Their product lineup spans a wide range of applications — from compact kits suited to 14-foot skiffs all the way to heavy-duty XD Series systems engineered for larger, faster boats that regularly encounter rough sea conditions. For boaters who want a hands-off experience, Lenco also offers advanced auto-leveling control systems that use engine and GPS data to maintain the optimal running angle automatically.

Beyond complete trim tab kits, the Lenco accessories lineup includes replacement actuators, control switches in multiple configurations, wiring harnesses, mounting brackets, and retro-fit kits — everything needed to install, upgrade, or maintain a trim tab system over its lifetime.

Key Considerations When Shopping Trim Tabs

• Blade Size: Match blade span to your boat's length, and consider deeper blades for heavier vessels or limited transom space.
• Mounting Style: Standard mount and edge mount configurations are available depending on your transom depth and actuator placement preferences.
• Electric vs. Hydraulic: Electric systems like Lenco's offer simpler installation, instant response, and lower maintenance compared to hydraulic setups.
• Control Options: From basic rocker switches to LED-integrated panels and fully automatic auto-leveling controllers, choose the interface that fits your helm layout and preferred level of automation.
• Warranty: Lenco trim tab systems are backed by a five-year warranty on trim tab systems and electrical switches, offering long-term peace of mind.