SPORDA HC5345 Seal Kit for SeaStar HC Hydraulic Steering Cylinder — HS5157 wrench & O-rings

SPORDA HC5345 Seal Kit is a complete replacement seal set engineered to restore SeaStar HC-Series hydraulic steering cylinders to leak-free operation, including the HS5157 pin wrench, two seal glands, and 16 corrosion-resistant O-rings in four sizes.

When a SeaStar HC-Series hydraulic steering cylinder begins to leak or feel spongy, replacing worn seals with a matched kit extends cylinder life and keeps steering responsive. This SPORDA kit matches SeaStar HC-series cylinder specifications so you get the correct sizes and the single specialty tool required for disassembly. It’s intended strictly for SeaStar HC models — not for BayStar, Xtreme, or unrelated systems — so confirming your cylinder model number is essential before ordering.

Which SeaStar cylinders will this SPORDA kit fit?

The kit is designed for direct fitment to all SeaStar HC-series hydraulic steering cylinders listed by model number. It covers a broad range of HC models so you can service many common SeaStar cylinders without sourcing individual seals.

• Compatible with HC5340–HC5348, HC5358, HC5365, HC5375, HC5394, HC5445, and HC6750–HC6755.
• Verify the cylinder model stamped on the housing before purchase.
• Not compatible with BayStar, Xtreme, or non-SeaStar cylinders.

What exactly is included in the SPORDA HC5345 Seal Kit?

This kit supplies every seal and the specific pin wrench needed to remove and reassemble the SeaStar HC cylinder, so you won’t need specialist parts from multiple sources. The components are packaged to let you replace all internal seals during one service session.

• 1 HS5157 pin wrench — the exact tool required for cylinder disassembly.
• 2 seal glands sized for SeaStar HC cylinders.
• 16 O-rings provided in four precision sizes for complete internal sealing.

How do these seals perform under marine hydraulic conditions?

SPORDA O-rings are made from a corrosion-resistant rubber compound developed for saltwater hydraulic environments and repeated compression cycles. Parts are manufactured to tight micron tolerances and rated to withstand typical hydraulic pressures used in marine steering systems.

• Seals rated for up to 3,000 PSI for leak-free performance under load.
• Corrosion-resistant compound preserves elasticity and resists saltwater degradation.
• Recommended inspection/replacement frequency: every two years or each boating season.

How will this kit simplify a cylinder rebuild or maintenance job?

By bundling all necessary O-rings, seal glands, and the HS5157 pin wrench, the kit eliminates guesswork and reduces downtime. Technicians and DIY boat owners can complete a full internal seal replacement without waiting for missing parts.

• Single purchase contains all internal seals needed for a complete service.
• Includes the pin wrench to safely open and reassemble the cylinder end cap.
• Works with standard hand tools; no special hydraulic tools required for seal replacement.

Who is this for: The SPORDA HC5345 Seal Kit is for boat owners, fleet maintenance teams, and marine mechanics who service SeaStar HC-series hydraulic steering cylinders and want a single, OEM-fit replacement package. If you maintain or rebuild SeaStar HC cylinders and prefer ready-matched seals plus the exact disassembly tool, this kit streamlines repairs and restores cylinder reliability. Confirm your cylinder model number before ordering to ensure compatibility.