Choosing a hydraulic steering setup for a 150HP outboard is about more than picking a cylinder and hoping it fits. You need to know what comes in the box, how much hardware you are getting, and whether you are buying a full helm replacement or just swapping the hydraulic core. These two 150HP kits take different approaches to the same job. One is a complete wheel-to-cylinder package with a corrosion-resistant body, while the other is a lean replacement kit aimed at boats already running a similar hydraulic system. The right one depends on the condition of your current wheel and how much you want to spend.
Quick Verdict
If you want a complete package rather than a core replacement, the GARVEE 150HP kit is the more thorough option. If you are replacing an existing hydraulic system and want to spend less, the Boat kit is the leaner choice. The difference in price is meaningful, but the real deciding factor is whether your current wheel stays or goes.
At a Glance
| Feature | GARVEE 150HP Kit | Boat 150HP Kit |
|---|---|---|
| Price | $373.58 | $333.99 |
| HP rating | 150HP | 150HP |
| Cylinder | Bi-directional lock cylinder | Balanced steering cylinder |
| Included hardware | Pump, 2 hoses, cylinder, accessory kit, 13.5-inch wheel | Balanced cylinder, low-friction helm, 2 hoses, fill kit |
| Weight | 24.9 lb | 19 lb |
Where Each Kit Stands Out
- The GARVEE kit is the fuller helm solution, with extra hardware in the box for a more involved upgrade.
- The Boat kit is the leaner option, focused on the hydraulic core and suited to a straightforward replacement.
The two designs reflect different starting points: one assumes you are building up a helm, the other assumes you are refreshing an existing hydraulic setup.
The right kit is the one that matches the work you actually need to do, and the extra cost of the GARVEE option only makes sense if you will put its additional hardware to use.
Product Notes
GARVEE 150HP Hydraulic Outboard Steering Kit
The GARVEE kit is built around the idea of a single-box steering overhaul. It includes a 13.5-inch non-slip wheel, hydraulic pump, bi-directional lock cylinder, and an accessory kit, so it covers the whole helm rather than just the hydraulic core. The bi-directional lock cylinder is the key difference here, as it is designed to prevent engine feedback and hold the motor steady. The marine-grade aluminum alloy construction adds corrosion resistance for saltwater use. The trade-offs are the $373.58 price and the fact that you are paying for wheel hardware you do not need.
Boat Hydraulic Steering System Kit 150HP
This kit is positioned as a replacement package, specifically for systems that use part number HK4200A-3. It includes a balanced steering cylinder, low-friction helm, and a fill kit, all in a 19-pound package that is easier to manage during a solo installation. At $333.99, it is the lower-priced entry in this head-to-head, which leaves room for other marine steering controls if you need them. The setup is designed for single-station, single-outboard boats rated up to 150HP, and the balanced cylinder offers smooth, straightforward steering in a package that stays focused on the hydraulic core. Because it centers on the HK4200A-3 replacement path, it is best suited to boats already using that hydraulic configuration.
Final Choice by Use Case
Choose the GARVEE kit if you want a complete package and a cylinder built to reduce feedback. It is the kit for a project where you are starting fresh at the helm. Choose the Boat kit if you want a lower-priced replacement for an existing hydraulic system. It is the kit for a direct swap where the surrounding components are already in place.
