Seastar Solutions HF5508 SeaStar II Cylinder Hose Kit for Copper Tubing

The Seastar Solutions HF5508 is a cylinder hose adapter kit designed for SeaStar II inboard hydraulic steering systems plumbed with copper tubing. This kit provides the necessary hardware to properly connect the steering cylinder to 3/8" O.D. copper tubing runs, ensuring a reliable, leak-free hydraulic connection at the cylinder end of the system.

Kit Contents:

• Two (2) 18-inch flexible hydraulic hoses
• Adapter fittings for cylinder connection
• Compression nuts for 3/8" copper tubing interface

Key Features & Specifications:

• Designed for single-cylinder installations on SeaStar inboard hydraulic steering systems
• Compatible with SeaStar II helms with 4-1/4 or 5-1/2 turns lock-to-lock
• Required when system is plumbed with 3/8" O.D. copper tubing (annealed copper refrigeration tubing with 0.032" wall thickness)
• Copper tubing specification: 3/8" outside diameter, approximately 0.8mm wall thickness
• Can also be used on outboard-powered boats equipped with SeaStar brass inboard cylinders
• Use of this adapter hose kit is required for SeaStar brass cylinders when copper tubing is present

Copper tubing systems require the HF5508 specifically — do not substitute with the nylon tubing kit (HF5507). For optimal results, use annealed copper refrigeration tubing meeting the diameter and wall thickness specifications outlined in the SeaStar installation manual.