The Dometic SeaStar Trim Tab System is now available across Australia and New Zealand through the Dometic Marine dealer network, offered in two configurations: a Standard Electric (opens in new tab) system designed for reliable everyday performance, and a CAN-based Adaptive (opens in new tab) system for boaters who want their trim tabs fully integrated with the rest of their vessel's electronics.
Why Trim Tabs Matter — And Why Control Matters More
Trim tabs do more than level a boat. Properly adjusted, they reduce fuel consumption, improve ride comfort, correct listing caused by uneven passenger or gear loads, and help vessels get on the plane faster. The problem has always been the interface — legacy systems required constant manual adjustment and offered little feedback on actual tab position.
The SeaStar system solves this with an approach that puts precision and simplicity at the centre of the design.
The Dial Controller: One Interface, Total Control
The SeaStar controller is built around a single intuitive dial that handles roll adjustment with a simple rotation — no guessing, no fumbling. For pitch, dedicated one-touch bow up and bow down buttons deliver immediate response.
Position monitoring is handled by LED indicators that provide real-time feedback on tab position, eliminating the uncertainty that comes with older systems. The controller also features a programmable favourites button — ideal for saving a preferred trim position for your regular load and conditions — and a home button that instantly retracts both tabs, a small feature that makes a significant difference in day-to-day use.
Standard System: Proven Technology, Low Power, Long Service Life
The Standard SeaStar uses a two-piece actuator built around ball screw technology — a proven mechanism that delivers repeatable, consistent positioning with minimal power draw. For boat owners who want a reliable, straightforward upgrade to electric trim tab control, the Standard system is the benchmark choice.
Both systems feature dual housing seals and IP69K-rated protection, the highest available standard for marine electronics. Whether you're running offshore in Green Island Channel or pushing through a swell off the Bay of Islands, the SeaStar actuators are engineered to perform.
Adaptive System: CAN Network Integration for a Smarter Boat
The Adaptive SeaStar is designed for vessels where integration matters. Using the on-board CAN network, the Adaptive system connects directly to your engine controls — enabling a feature called Hole Shot mode, which uses the tabs to optimise planing performance at launch, getting you up on the plane smoother and faster without manual adjustment.
Once underway, tab position can be viewed on any compatible multifunction display (MFD), keeping your helm clean and your situational awareness high. Engaging reverse automatically triggers tab retraction, protecting the tabs and simplifying docking without any additional steps from the operator.
The Adaptive system's actuator uses a high-torque DC motor driving a planetary gearbox and inverted lead-screw design — an engineering choice that delivers ultra-efficient performance under high load, making it well suited to larger vessels or demanding conditions.
Built to Last: Materials and Construction
Dometic doesn't cut corners on the components that live below the waterline.
SeaStar trim tabs are manufactured from 12-gauge 304 stainless steel — the grade used across commercial marine and offshore applications for its corrosion resistance and structural integrity. Adaptive system tabs are electro-polished as standard, further enhancing their surface protection and finish.
Hinges are 14-gauge heavy-duty rated, and hinge pins are ¼-inch diameter — both specifications chosen for maximum structural strength across years of use. Every kit includes Deutsch connectors and stainless steel hardware, so installers have everything they need from the moment the box is opened.
Ready to Upgrade?
Whether you're rigging a new build, upgrading an existing vessel, or specifying for a customer, the Dometic SeaStar Trim Tab System represents the current benchmark in electric marine trim tab technology.
Where to Get the Dometic Trim Tabs
Our Trim Tab System is available through Dometic's authorised marine dealer network. Find your nearest Dometic Stockist: