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Pro Marine 350-HELM-037 Hydraulic Helm Pump 37cc

37cc Hydraulic Helm Pump for SeaStar, Uflex & Pro Marine Hydraulic Steering
Item #: 350-HELM-037 
Manufacturer: Pro Marine
Available: Out of Stock
Helm Pump
For 350-Hsteer System
37 cc/rev or 2.25 c.i./rev
669.50
Each
Quantity:
Quantity Price
1 669.50
37cc Helm Pump

37cc Hydraulic Steering Helm Pump

Pro Marine 350-HELM-037 Hydraulic Helm Pump

The Pro Marine 350-HELM-037 Hydraulic Helm Pump is a 37cc hydraulic steering helm designed for smooth, responsive steering control on high-horsepower outboard boats.

This Pro Marine helm is designed for the 350-HSTEER system and is compatible with many standard hydraulic steering systems, including Pro Marine, SeaStar®, Uflex®, and other similar front-mount hydraulic steering setups.

What a 37cc Helm Pump Does

The helm pump creates the hydraulic pressure that moves fluid through the steering hoses and into the steering cylinder. When you turn the wheel, the helm controls how much fluid is moved through the system, which directly affects steering feel and wheel turns lock-to-lock.

A 37cc helm moves more fluid per steering wheel turn than smaller 25cc or 30cc helms, which can create quicker steering response and fewer turns lock-to-lock when matched with the correct hydraulic steering cylinder.

Pro Tip: A 37cc helm is often chosen when the customer wants a faster steering response or fewer wheel turns lock-to-lock. Always match helm size to the steering cylinder, boat setup, and desired steering response.

Read our Hydraulic Steering Comparison & Pro Tips Guide

Best Applications

Application Recommended Use
Single Outboards up to 350HP Hydraulic steering helm applications requiring quicker response
Bass Boats Performance steering feel and reduced wheel turns
Bay Boats Responsive control for shallow-water and open-water use
Center Consoles Controlled steering feel for coastal and offshore running
Performance Setups Useful where faster steering response is preferred

Complete or Service Your Steering System

Complete Steering Kit

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

View 350-HSTEER Complete Kit

Steering Cylinder

Pair this helm with a compatible hydraulic steering cylinder for proper system operation and steering response.

View 350-HSTEER-CYL Cylinder

Hydraulic Hoses

Choose the correct hose length for your boat, jack plate, setback, and rigging route.

Shop Pro Marine Hydraulic Hoses

Fluid & Fill Accessories

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

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

Key Features and Benefits

  • 37cc hydraulic helm pump design
  • 2.25 cubic inches per revolution hydraulic displacement
  • Moves more fluid per wheel turn than 25cc and 30cc helms
  • Can provide quicker steering response when properly matched
  • Designed for the Pro Marine 350-HSTEER hydraulic steering system
  • Compatible with many standard hydraulic steering systems
  • Works with Pro Marine, SeaStar®, and Uflex® style setups
  • Good choice for performance boats and high-horsepower outboards
  • Helps reduce steering effort compared to cable steering

System Function and Connections

  • System Type: Hydraulic outboard steering
  • Component Type: Hydraulic helm pump
  • Helm Size: 37cc
  • Displacement: 2.25 cu in/rev
  • Connection Type: Hydraulic steering hose circuit
  • Typical Use: Single outboard hydraulic steering systems
  • Compatible Systems: Pro Marine 350-HSTEER, 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 37cc hydraulic helm pump do?
It converts steering wheel movement into hydraulic pressure and moves fluid through the steering system to turn the outboard.

What is the difference between a 30cc and 37cc helm?
A 37cc helm moves more fluid per wheel turn than a 30cc helm, which can reduce turns lock-to-lock and create a quicker steering feel when matched correctly.

What steering systems is this helm compatible with?
It is designed for the Pro Marine 350-HSTEER system and 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.

Should I choose the 30cc or 37cc helm?
Choose based on your steering cylinder, boat setup, and desired steering feel. The 37cc helm is generally the more responsive option.

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-037, hydraulic helm pump, 37cc helm pump, Pro Marine 37cc helm, 2.25 cu in helm pump, SeaStar compatible helm, Uflex compatible helm, hydraulic steering helm, outboard steering helm, performance steering helm, 350-HSTEER helm pump

Steering

OEM or Aftermarket
Aftermarket
Manufacturer
Pro Marine
Components
Helm