Hydraulic Boat Steering
Hydrive has manufactured hydraulic boat steering in South Australia since 1966 — over 800,000 systems sold worldwide, and a range that spans 5-metre tinnies to vessels over 100 metres. Luxfords has stocked and supported Hydrive for over 40 years — from cable-to-hydraulic upgrades on trailer boats to commercial systems in survey.
Why boats outgrow cable steering
Cable steering carries every load the propeller makes straight back to your hands — torque steer, prop walk, the kick of a following sea. Hydraulic steering breaks that path: the wheel drives a helm pump, oil drives a cylinder at the engine or rudder, and built-in lock valves mean the engine simply cannot move the wheel. The result is fingertip control at speed, no lost motion as the system ages, and no more fighting the motor in a turn.
Hydrive builds the whole system in South Australia — helm, cylinder, fluid — and packs it as a kit with tubing, fittings and a bleeding kit. Every unit is individually tested before it ships — Hydrive doesn't batch test — and safety margins exceed marine survey society requirements, tested to meet the safety standards of international survey authorities including Lloyd's, CCS and BV.
One brand, five metres to a hundred
Four tiers cover everything from tiller-replacement tinnies to survey vessels and superyachts.
Commander
The value tier — anodised aluminium cylinders with electrolytic insulation. Pleasure-rated kits for outboards to 200 hp (PRO versions add commercial approval and lift ratings to 300/600 hp).
Admiral
The premium tier — chrome-plated marine-grade brass cylinders, solid brass end caps, stainless tiller arms. Pleasure and commercial rated, outboards to 350 hp single and 1200 hp twin.
HD Series
Heavy-duty inboard steering with full-feedback helms — rudder torques from 100 to 2,651 KgM, suiting vessels to 50 m, power and sail, leisure and commercial.
Power Assisted
12 V electro-hydraulic power steering for any outboard brand or horsepower, plus engine-driven and AC systems for big vessels — torques to 20,000 KgM.
Guides & resources
Pick the right mounting style, and keep the system honest once it's in.
Kit selector
Three questions to every kit rated for your boat — Hydrive's own selection method.
OpenCylinder mounting types
Bullhorn, side mount, front mount, centre mount — what each needs and when to choose it.
OpenTroubleshooting & bleeding
Spongy wheel, heavy steering, slipping — what each symptom means, plus the fluid rules and bleeding outline.
Open40+ years with Hydrive
Luxfords is an exclusive Victorian distributor and stockist of Hydrive steering, and has stocked and supported the range for over 40 years — along with steering wheels, accessories, and cable steering kits and replacement cables.
Cable upgrades a speciality
The side-mount cylinders screw onto the tilt tube where your old cable ran — we'll match the kit, the cylinder variant for your motor, and the fluid in one go.
Commercial & survey work
Admiral and PRO kits are commercial-rated, with Hydrive's safety margins exceeding survey society requirements — tell us the survey requirements and we'll spec to them.
Steering FAQs
How do I know what size hydraulic steering my boat needs?
For outboards it's Hydrive's published three steps: match your engine's horsepower to a kit's rated capacity (single, or total for counter-rotating twins), pick the cylinder style that fits your engine well, then choose the pleasure-rated Commander tier or the commercial-rated Admiral tier. For inboards, sizing is by rudder torque rather than horsepower. Our selector walks the whole sequence — or send us the boat and engine details and we'll spec it.
What's the difference between the Admiral and Commander ranges?
Commander is the value tier: anodised aluminium cylinders with electrolytic insulation, rated for pleasure use (PRO versions add commercial approval). Admiral is the premium tier: chrome-plated marine-grade brass cylinders, solid brass end caps and stainless tiller arms, rated for both pleasure and commercial use and built for the corrosive conditions of northern Australia. Both use the same proven helm design.
Can I convert my cable steering to hydraulic?
Usually, yes — and it's the most common upgrade Hydrive sells. The side-mount (tube-mount) cylinders screw onto the outboard's tilt tube exactly where the cable ran, so kits like OBKIT2 or COMKIT2 reuse the same mounting. The result is no more feedback through the wheel, no lost motion, and fingertip control at speed.
How many turns lock-to-lock should I expect?
It's simple hydraulics: cylinder volume divided by helm displacement per revolution. Hydrive's kits land around 5.4–5.5 turns with the standard helm — or 4.4 with the larger 402 helm, which trades a slightly heavier wheel for fewer turns. Jet kits are deliberately fast at 1.7 turns; small inboard kits run 3–5. If you want a different feel, changing the helm is often all it takes.
What oil does Hydrive steering use?
Hydrive ULTRA-15 hydraulic oil, full stop. The manual is explicit: alternative fluids can cause premature seal wear and void the warranty, automatic transmission fluid is out, and brake fluid will damage seals and components. A small single-station system takes about 2 litres including bleeding losses; we stock it.
Is Hydrive steering suitable for commercial survey vessels?
Yes — Admiral kits and PRO versions of the Commander kits are rated for professional and commercial use, Hydrive's safety margins exceed marine survey society requirements, and the HD and power-assisted ranges carry the brand into workboats, ferries and superyachts. Tell us the survey requirements and we'll match the right system.
Steering sorted, first time
Tell us the boat, the engine and how you use it — we'll confirm the kit and the exact cylinder variant for your motor, and quote it with fluid and any extras.
(03) 5973 6444