What are the symptoms of a failing power assist steering pump?

Common symptoms include hard or jerky steering, delayed response when turning the wheel, whining or grinding noises from the pump, and visible hydraulic fluid leaks. In some cases, steering may feel normal at idle but become stiff at higher RPMs. These signs indicate the pump may be failing and should be inspected immediately.

Is it safe to operate my boat with a bad power steering pump?

No, operating a boat with a failing power assist steering pump is unsafe. Loss of steering assist can make the boat difficult to control, especially during docking or emergency maneuvers. Continued use may also damage the steering ram, helm, or hoses, leading to more expensive repairs.

What is included in your power assist steering pump replacement service?

Our service includes removing the failed pump, inspecting hoses and fittings, installing a new or OEM-equivalent pump, refilling with manufacturer-approved hydraulic fluid, bleeding the system, and testing steering operation under load. We ensure smooth, quiet, and responsive steering before final delivery.

Do you check other steering components during pump replacement?

Yes. During pump replacement we inspect the hydraulic steering ram, helm unit, hoses, seals, and belt drive (if applicable). This prevents installing a new pump into a system that may have underlying issues such as internal leaks or contamination.

How long does a power assist steering pump replacement take?

Most power assist steering pump replacements are completed within the same day. If additional issues are found—such as contaminated fluid or damaged hoses—the service may take slightly longer. We always communicate findings before proceeding.

Do you offer mobile service at the marina for steering pump replacement?

Yes, we provide mobile marine service in Newport Beach and Long Beach marinas. Most power assist steering pump replacements can be performed dockside, minimizing downtime and eliminating the need for transport or haul-out.

Marine mechanic using a socket wrench to remove a failing power assist steering pump from the front of a marine diesel engine in a cramped engine room.

Power Assist Steering Pump Replacement

SKU

2150

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$150.00

Turning a 300HP outboard shouldn't feel like a gym workout. We replace failing electric-hydraulic power assist pumps, eliminating the "whine of death" and restoring effortless, one-finger steering control.

Details

Effortless Control

One-Finger Steering.
High Horsepower.

Turning 600HP of outboard power shouldn't require a gym membership. We diagnose and replace failed electric-hydraulic power assist pumps, restoring the smooth, silent, and effortless steering your boat was built for.

The "Whine of Death"

Is your steering pump screaming when you turn the wheel? A loud, high-pitched whine is the #1 sign of pump motor failure or air cavitation. Ignoring it leads to sudden loss of assist while underway.

High-Current Diagnostics

These pumps draw massive amperage (up to 60A). Before replacing a $2,500 pump, we test your voltage drop, fuses, and relays to ensure the problem isn't just a bad ground or weak battery.

Autopilot Integration

Power assist pumps sit in-line with your autopilot. Replacing them requires careful re-plumbing and purging to ensure your autopilot doesn't get confused by trapped air bubbles or pressure spikes.

The Replacement Protocol.

From heavy to hydraulic heaven.

Electrical Audit

We test the 12V/24V supply under load. Power assist motors are sensitive to low voltage. We verify the "trigger wire" from the ignition is functioning correctly.

Pump Replacement

We remove the old SeaStar or Mercury pump unit (usually buried deep in the console or bilge). We install the new unit with fresh hydraulic fittings.

Power Purge

Installing a new pump introduces air. We use our automated Power Purge machine to circulate fluid through the entire loop (helm, pump, autopilot, engine) until 100% air-free.

Sea Trial

We test the boat on the water, performing hard turns at speed to ensure the assist motor kicks in instantly without lag or noise.

Silent Power.

Expert installation of complex systems.

SeaStar PA1200 Installation

High-Current Fuse Block

Automated Purge System

Systems We Service.

Authorized for leading manufacturers.

SeaStar / Dometic PA1200 / PA1202 Series

Mercury Marine Verado Power Steering

Optimus Electric/Joystick Steering

Common Questions

Why is my steering so heavy?

If the wheel feels "dead" or requires two hands to turn, your power assist pump has likely failed or lost power (blown fuse). Do not operate the boat at high speeds in this condition.

Can these pumps be rebuilt?

Generally, no. They are sealed units containing high-pressure gear pumps and complex electronics. Factory replacement is the only reliable option for safety.