About Bennett
Bennett self-levelling trim tabs for small boats, the Sport hydraulic trim tab system for boats with limited transom space, and the hydraulic actuator assembly as a replacement part. Bennett makes trim tab systems for powerboats, the plates on the transom that help a boat get on the plane, run level and stop porpoising. They suit ski boats and dive RIBs alike. Order online from Scuba Evolution in Johannesburg, delivered anywhere in South Africa.
Bennett in South Africa
Bennett makes trim tab systems for powerboats. Trim tabs are plates on the transom that move up or down to change the boat's running attitude: they help it get on the plane at lower speed, stay level with an uneven load and stop porpoising. On a loaded dive boat with cylinders stacked to one side, that's a smoother, drier ride. We list three Bennett options; which one depends on the boat and how much control you want.
No power, no switches
Self-Levelling Trim Tabs need no pump, wiring or helm control: the tabs and actuators mount on the transom and nothing goes inside the boat. Three mounting options change the lift. The 152 x 203 mm size is recommended for boats up to about 4.9 m, and the 254 x 254 mm size for boats of about 5.2 to 6.1 m.
Hydraulic control from the helm
The Sport Limited Space Hydraulic Trim Tab System is for boats with little room on the transom. It's run from a Euro-style rocker switch, so you adjust trim as conditions and load change, and Bennett says its batwing tab gives 30 percent more lift. It comes in two sizes with a transom mount.
Replacement actuators
The Hydraulic Actuator Assembly is the cylinder that moves the tab, with a standard 64 mm stroke. It's the part to replace when a cylinder leaks or seizes. Check it against your existing system before ordering.
See more boat hardware and deck fittings.
Questions we get asked
Which Bennett tab size fits my boat?
For the self-levelling tabs, 152 x 203 mm is recommended for boats up to about 4.9 m and 254 x 254 mm for about 5.2 to 6.1 m. For the hydraulic Sport system, ask us with your boat's length and transom width.
Do self-levelling trim tabs need wiring?
No. They need no power, pump or control, and mount entirely on the transom.
Will this actuator fit my old Bennett system?
All Bennett hydraulic actuators have a standard 64 mm stroke, but fitting details aren't published with this part, so confirm compatibility with your existing system before ordering.
What do trim tabs actually do?
They change the boat's running attitude, helping it plane at lower speed, correct a list from an uneven load and stop porpoising.
How do I order Bennett in Johannesburg?
Order Bennett online from Scuba Evolution in Johannesburg, delivered anywhere in South Africa.










