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Pro Marine 350-HELM-025 Hydraulic Helm Pump 25cc

25cc Hydraulic Helm for SeaStar, Uflex & Pro Marine Systems
Item #: 350-HELM-025 
Manufacturer: Pro Marine
Available: In Stock
Helm Pump
For 350-Hsteer System
25 cc/rev
669.50
Each
Quantity:
Quantity Price
1 669.50
Hydraulic helm pump

25cc Hydraulic Steering Helm Pump

Pro Marine 350-HELM-025 Hydraulic Helm Pump

The Pro Marine 350-HELM-025 Hydraulic Helm Pump is a 25cc hydraulic steering helm designed for smooth, controlled steering response on modern outboard boats.

This helm is compatible with many standard hydraulic steering systems, including Pro Marine, SeaStar®, Uflex®, and other similar front-mount hydraulic steering setups.

What a Hydraulic Helm Pump Does

The helm pump is the core component of a hydraulic steering system. When the steering wheel is turned, the helm creates hydraulic pressure that moves fluid through the hoses and steering cylinder to turn the engine.

A properly matched helm pump helps provide predictable steering feel, reduced steering effort, and smooth handling at both low and high speeds.

Pro Tip: Helm displacement affects steering feel and wheel turns lock-to-lock. A 25cc helm is commonly used on larger single outboard applications where balanced steering effort and control are important.

Read our Hydraulic Steering Comparison & Pro Tips Guide

Best Applications

Application Recommended Use
Single Outboards up to 350HP Hydraulic steering helm applications
Bass Boats Performance steering and responsive handling
Bay Boats Smooth low-speed and cruising control
Center Consoles Reliable offshore and coastal steering feel
Repower Projects Excellent upgrade from traditional cable steering

Complete or Service Your Steering System

Complete Steering Kit

Need the full steering package? The 350-HSTEER kit includes the helm, cylinder, fluid, and fill hose assembly.

View 350-HSTEER Complete Kit

Steering Cylinder

This helm works with many standard hydraulic steering cylinders, including Pro Marine, SeaStar®, and Uflex® compatible systems.

View 350-HSTEER-CYL Cylinder

Hydraulic Hoses

Select the proper hydraulic hose length for your boat, jack plate, setback, and rigging route.

Shop Pro Marine Hydraulic Hoses

Fluid & Fill Accessories

Hydraulic fluid and fill hose assemblies help simplify installation and steering system bleeding.

View PRO-OIL15 Hydraulic Fluid
View 102P Fill Hose Assembly

Key Features and Benefits

  • 25cc hydraulic helm pump design
  • Compatible with many standard hydraulic steering systems
  • Works with Pro Marine, SeaStar®, and Uflex® style setups
  • Smooth steering response and controlled handling
  • Designed for high-horsepower single outboards
  • Helps reduce steering effort compared to cable steering
  • Good option for bass boats, bay boats, and offshore applications

System Function and Connections

  • System Type: Hydraulic outboard steering
  • Component Type: Hydraulic helm pump
  • Helm Size: 25cc
  • Connection Type: Hydraulic steering hose circuit
  • Typical Use: Single outboard hydraulic steering systems
  • Compatible Systems: Pro Marine, SeaStar®, Uflex®, and similar front-mount hydraulic steering systems
  • Related Components: Steering cylinder, hydraulic hoses, steering fluid, fittings, and fill/bleed kit

FAQ

What does a hydraulic helm pump do?
The helm pump converts steering wheel movement into hydraulic pressure that moves the steering cylinder.

What size is this helm?
This is a 25cc hydraulic helm pump.

What steering systems is this helm compatible with?
It is compatible with many standard hydraulic steering systems including Pro Marine, SeaStar®, Uflex®, and other similar front-mount hydraulic steering setups.

Is this the complete steering system?
No. This listing is for the helm pump only.

Can I buy the complete steering kit instead?
Yes. The complete 350-HSTEER kit includes the helm pump, steering cylinder, fluid, and fill hose assembly.

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.

Apply for a Dealer Account

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-HELM-025, hydraulic helm pump, 25cc helm, SeaStar compatible helm, Uflex compatible helm, Pro Marine helm pump, hydraulic steering helm, outboard steering helm, front mount hydraulic steering

Steering

OEM or Aftermarket
Aftermarket
Manufacturer
Pro Marine
Components
Helm