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Must use old case from current Unit.Â
1 Year Warranty.  Â
Save $$$$ on pump / all parts to convert to Gen C Pump.Â
Cost to Convert To Gen C:
$1,050 Pump Assembly
$217.88 Adapter Hose
$84.24 Power Steering Harness w/ Fuse
$50.23 Signal Wire Conversion
Also if boat is rigged with twins, Trips, etc:
Â
$268.43 Automatic Power Source
Save $$$$$$ with this Gen B Replacement!
Helm to Power Steering Pump(Special Order Must Call):
8M0150604 - 2 Foot
8M0150605 - 3 Foot
8M0150606 - 4 FootÂ
8M0150607 - 5 FootÂ
8M0150608 - 6 Foot
8M0150610 - 7 Foot
8M0150612 - 8 Foot
8M0150613 - 10 Foot
8M0150614 - 12 Foot
8M0150615 - 14 Foot
8M0150616 - 16 Foot
8M0150617 - 18 Foot
8M0150618 - 20 Foot
8M0150619 - 22 Foot
8M0150620 - 24 Foot
8M0150621 - 26 Foot
8M0150622 - 28 Foot
8M0150623 - 30 Foot
8M0150624 - 32 Foot
Cylinder to Helm (Special Order Must Call)::
8M0167281 - 2 Foot
8M0167282 - 3 FootÂ
8M0167283 - 4 Foot
8M0167284 - 5 Foot
8M0167285 - 6 Foot
8M0167286 - 7 Foot
8M0167287 - 8 Foot
8M0167288 - 10 Foot
8M0167289 - 12 Foot
8M0167290 - 14 Foot
8M0167291Â - 16 Foot
8M0167292 - 18 Foot
8M0167293 - 20 Foot
8M0167294 - 22 Foot
8M0167295 - 24 Foot
8M0167296 - 26 Foot
8M0167297 - 28 Foot
8M0167298 - 30 Foot
8M0167299 - 32 Foot  Â
If you'd Rather Convert to Gen C Power Steering check out our in depth how to for all the information you might need!Â
Gen A / B to C Conversion How ToÂ
Â
8M0134736
HK6400
64-891665A01
702755024828
Complete Hydraulic Steering System
Pro Marine 350-HSTEER Hydraulic Steering System
Built for single outboard boats up to 350HP, the Pro Marine 350-HSTEER system delivers smooth steering response, better control, and reliable performance for modern high-horsepower outboards.
Includes: steering cylinder, helm pump,
2 bottles of hydraulic fluid, and fill hose assembly.
Hydraulic hoses sold separately so you can choose the
correct hose length for your boat and rigging layout.
What Is Included
Steering Cylinder
Front-mount hydraulic steering cylinder built for high-horsepower outboard control and smooth steering response.
View 350-HSTEER-CYLHelm Pump
Hydraulic helm pump that converts steering wheel input into hydraulic steering movement.
View 350-HELM-025Fill Hose Assembly
Makes filling and bleeding the hydraulic steering system easier during installation and service.
View 102P Fill HoseRead our 350-HSTEER Steering Comparison & Pro Tips Guide
Best Applications
| Boat / Setup | Why It Works Well |
|---|---|
| Single Outboards up to 350HP | Built for modern high-horsepower steering loads |
| Bass Boats | Responsive steering feel and better control at speed |
| Bay Boats | Smooth handling in shallow and open water |
| Center Consoles | Reliable steering control for offshore and coastal use |
| Repowers | Excellent upgrade from traditional cable steering |
Complete Your Steering Setup
Need hoses or replacement steering components?
Key Benefits
- Designed for single outboards up to 350HP
- Smooth hydraulic steering response
- Reduced steering effort compared to cable systems
- Improves handling and control at higher speeds
- Excellent for bass boats, bay boats, and center consoles
- Flexible hose routing for cleaner rigging installations
FAQ
Does this steering system include hoses?
No. Hydraulic hoses are sold separately so you can choose the
correct hose length for your setup.
What horsepower is this system rated for?
The 350-HSTEER system is designed for single outboard applications up to 350HP.
What comes in the kit?
The kit includes the steering cylinder, helm pump,
two bottles of hydraulic steering fluid, and fill hose assembly.
What boats is this system commonly used on?
It is commonly used on bass boats, bay boats,
center consoles, repower projects, and performance outboard setups.
Dealer Discounts & Store Policies
Dealer / Marine Industry Discounts
Are you a marine dealer, technician, boat builder, or industry professional? We offer dealer pricing for qualified marine businesses.
Shipping Policy
- Free shipping on orders over $100 (continental U.S.).
- Orders ship via UPS, USPS, and FedEx.
- Orders received before 5:30 PM EST ship the same business day.
- Typical delivery time is 1–5 business days.
30-Day Return Policy
- Returns accepted within 30 days of delivery.
- Items must be new, unused, and in original packaging.
- Return authorization is required before sending items back.
Need help with a return or order question?
Contact Us
Phone: 941-721-3000
Searchable Terms
350-HSTEER, Pro Marine hydraulic steering system, hydraulic steering kit, hydraulic steering up to 350HP, outboard steering system, bass boat hydraulic steering, bay boat steering system, offshore hydraulic steering, steering helm and cylinder kit