Seastar HC5378 Inboard Hydraulic Steering Cylinder, Capilano BA200-7TMB

Model # 6541072 Mfg # HC5378
4.2 out of 5 Customer Rating
Advice & How-To
Orders placed by 3 PM EST typically ship the same day. Orders placed after this time will be processed the next business day.
Seastar HC5378 Inboard Hydraulic Steering Cylinder, Capilano BA200-7TMB
Model # 6541072 Mfg # HC5378
4.2 out of 5 Customer Rating
Advice & How-To
Orders placed by 3 PM EST typically ship the same day. Orders placed after this time will be processed the next business day.
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The Capilano HC5378 is a professional-grade inboard hydraulic steering cylinder engineered for marine applications. Built with heavy-duty brass construction and stainless steel components, this cylinder delivers reliable steering performance for vessels equipped with inboard hydraulic steering systems. The 11-inch stroke and 2-inch bore diameter provide a displacement of 29.7 cubic inches, generating 19,900 in/lbs of torque at 1000 psi and 35 degrees.

Key Features

  • Heavy-duty brass cylinder with two-axis articulation
  • Stainless steel rod with ball joint rod end configuration
  • Stainless and bronze mounting hardware for corrosion resistance
  • Bleed fittings for system maintenance
  • Chrome-plated stainless steel rods
  • Not an air-pressurized system—eliminates air leaks and pressure drops
  • Suitable for single- or dual-rudder vessel installations
  • Compatible with Hynautic inboard steering systems as a K4B replacement
  • Easy installation and autopilot interface compatibility

This balanced hydraulic cylinder is designed for demanding marine environments and offers the durability and precision required for professional boat steering control.

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