Steering Helm & Cylinder Seal Replacement

SKU
Steering Helm & Cylinder Seal Replacement
Rating:
100% of 100
$150.00
Finding puddles of hydraulic fluid on your deck or in your bilge? A leaking helm or cylinder means you are losing steering control. We rebuild these expensive components with new seals, saving you the cost of a full replacement.
Details
Stop the Drip

Sealed Tight.
Steer Right.

A leaking hydraulic steering system is a ticking time bomb. As fluid leaks out, air gets sucked in, leading to sloppy, dangerous steering. We don't just add fluid; we completely rebuild your helm and cylinders to hold pressure permanently.

The Helm Pump Leak

Fluid dripping on your console deck? The main steering shaft seal behind your wheel wears out from thousands of turns. We remove the helm and replace the difficult internal quad-ring seal.

The Ram Cylinder Leak

Seeing an oil sheen in the water near your engine? Salt crystals damage the wiper seals on the steering ram. We rebuild the cylinder gland ends to keep fluid in and saltwater out.

Air is the Enemy

A leak is a two-way street. If fluid can get out, air can get in. Air causes "spongy" steering and eventually total loss of control. Resealing is a safety requirement, not just a cleanup issue.

The Bench Rebuild.

Precision service in a controlled environment.

01

Extraction & Inspection

We remove the leaking component. We inspect the helm or ram shaft for scoring or pitting. A damaged shaft will tear new seals instantly and must be replaced or polished.

02

Bench Disassembly

In a clean workshop, we completely disassemble the unit. We remove old O-rings, quad-rings, and wipers, cleaning all internal passages of old, contaminated fluid.

03

Precision Reseal

We install a complete OEM-spec seal kit using assembly grease to ensure seals don't pinch or tear during reassembly. Torque specs are strictly followed.

04

Pressure Bleed

After reinstallation, we use our automated power purge system to fill the system with fresh Mil-Spec fluid and remove 100% of the air for firm steering.

Leak-Free Results.

Professional attention to detail.

Systems We Service.

We support all major hydraulic brands.

SeaStar / Dometic Helms (HH series) & Cylinders (HC series)
BayStar For smaller outboard applications
Uflex / Hynautic European and older pressure-tank systems

Common Questions

Can I use automotive "stop leak" fluid?

Absolutely not. These products swell seals temporarily but eventually turn into a gummy mess that clogs internal valves, often ruining the entire helm pump.

Why did my seals fail?

Age is common, but often it's dried saltwater on the cylinder ram that acts like sandpaper against the wiper seal. Using the wrong fluid (like ATF) can also destroy seals.

Stop the Drips.

Schedule your hydraulic steering reseal.

Reseal My Steering
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