Uflex UP28FM Front Mount Hydraulic Steering Helm – SeaStar Compatible, 3/4" Tapered Shaft
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Uflex UP28FM Front Mount Hydraulic Steering Helm – SeaStar Compatible, 3/4" Tapered Shaft
The Uflex UP28FM is a front-mount hydraulic steering helm from the UP28 series — a step up from the UP25FM in displacement and steering authority, designed for larger outboard and sterndrive applications where the UP25FM may feel light. Like the UP25FM, it is a direct drop-in replacement for SeaStar® front-mount helms and is fully compatible with Teleflex/SeaStar cylinders, hoses, and oil.
With a built-in lock valve, integral 1,000 PSI relief valve, convenient front-of-dash fill, and adjustable boss fittings, the UP28FM delivers the same practical installation and service advantages as the UP25FM in a higher-output package.
Key Features
- UP28 Series — Higher Displacement — Greater fluid output per stroke than the UP25FM for larger cylinder and higher-demand applications
- Direct SeaStar® Drop-In Replacement — Same mounting footprint; no additional dash modifications required
- Compact Design — Low-profile front-mount configuration for clean dash installations
- Built-In Lock Valve — Provides positive rudder lock to hold steering position under load
- Integral Relief Valve — Over-pressure protection rated at 1,000 PSI
- 3/4" Tapered Stainless Steel Shaft — Corrosion-resistant; accepts most standard marine steering wheels
- Convenient Front-of-Dash Fill — Easy fluid access without removing the helm from the dash
- Easily Accessible Lock Valve and Shaft Seal — Simplified field servicing and seal replacement
- Adjustable Boss Fittings — Compatible with Uflex Kit OB, Kit OBSVS hose kits, and SeaStar hoses
- Relief Valve Pressure: 1,000 PSI
- Part Number: UP28FM | SKU: 216-UP28FM
Compatible Applications
- Direct replacement for SeaStar® front-mount hydraulic steering helms requiring UP28-series output
- Larger outboard and sterndrive hydraulic steering systems where the UP25FM is insufficient
- Compatible with Teleflex/SeaStar cylinders, hoses, and hydraulic oil
- Compatible with Uflex Kit OB and Kit OBSVS hose kits
- Pairs with the Uflex UC132OBS Sterndrive Cylinder and UC133IOB Sterndrive Cylinder for sterndrive applications
- For the standard-output version, see the Uflex UP25FM Front Mount Hydraulic Helm
- For high-performance applications, see the Uflex UP25FSVS SilverSteer™ Helm
Parts Desk Insights
Best Use Case: The UP28FM is the right helm when you need more steering output than the UP25FM provides — typically on larger outboard boats, twin-engine applications, or sterndrive setups where the UP25FM feels slow or requires too many wheel turns to achieve full lock. The UP28 series moves more fluid per stroke, which translates to fewer turns lock-to-lock and more responsive steering feel on larger systems. It retains the same SeaStar drop-in compatibility and front-of-dash fill convenience as the UP25FM, so it’s a straightforward upgrade if you’re already running a SeaStar-compatible system. If you’re replacing a helm and the original was a UP28-series unit, match the series exactly — swapping to a UP25FM on a system sized for a UP28 will result in more turns lock-to-lock and a slower steering feel. For the tilt version, see the Uflex UP25TX52 Tilt Helm. For high-performance bass and flats boat applications, see the UP25FSVS SilverSteer™ Helm.
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 1-3 business days.
Special-order items: timeline confirmed after order.
Returns & warranty
Returns & Satisfaction Guarantee
We stand firmly behind the quality of every product we sell. Your confidence matters to us — and we back it with a straightforward 30-Day Satisfaction Guarantee.
If you are not fully satisfied, you may request a return within 30 days of delivery. All returns must receive pre-approval prior to being sent back. Unauthorized returns will not be accepted.
To qualify for a return:
Item must be in new, unused condition
Product must be in its original packaging
All parts, components, hardware, manuals, and accessories must be included
Packaging must be undamaged and suitable for resale
Important:
Electronics are strictly inspected. No returns on open-box electronics. Exceptions may apply only with prior written approval. Any electronic unit that has been installed, powered, activated, or altered may not be eligible for return.
We are serious about product integrity — and equally serious about taking care of our customers. If there is ever a product issue, contact us immediately so we can make it right.
For return authorization, please contact our support team before shipping anything back.