SeaStar HS5167 Seal Kit for Front-Mount & Pivot Steering Cylinders — Includes Guide Tool, Restores Leak-Free Steering

SeaStar HS5167 is a front seal replacement kit that restores leak-free operation to SeaStar pivot and front-mount steering cylinders by supplying two seal glands and an assembly guide tool.

When a steering cylinder begins to weep or lose smooth travel, replacing worn front seals is a cost-effective way to regain reliable steering performance without swapping the entire cylinder. The HS5167 seal kit from SeaStar (Dometic) supplies the precise components designed to fit a long list of SeaStar front-mount and pivot cylinder models, plus a simple guide tool to make installation cleaner and more predictable. This kit is intended for marine technicians and capable DIYers who want an OEM-grade repair part backed by SeaStar’s industry experience and recreational-user warranty.

Which SeaStar cylinders does the HS5167 seal kit fit?

The HS5167 kit is engineered for compatibility with many SeaStar front-mount and pivot cylinders. It suits a wide range of part numbers used in recreational steering systems, so you can match the kit to your cylinder model for a correct fit.

• Fits front-mount/pivot cylinder models such as HC5340 through HC5348 and additional models HC5358, HC5365, HC5375, HC5394, and HC5445.
• Also compatible with later-series cylinders HC6750–HC6755 for boats using those assemblies.
• Use SeaStar parts cross-reference or cylinder label to confirm model before ordering.

What parts are included and how do they help the repair?

The HS5167 contains the essential front seal components and a fitting aid to simplify installation. The kit’s items replace worn sealing surfaces that commonly cause leaks and degraded steering feel.

• Two seal glands that replace the damaged or hardened front seals on the cylinder head.
• A seal gland assembly guide tool that helps align and seat seals without damage.
• Designed to restore hydraulic containment and smooth piston travel when installed correctly.

How difficult is installation and what tools are recommended?

Installation is straightforward for anyone comfortable with basic hydraulic component servicing, but it requires care to avoid contaminating seals. The included guide tool reduces the risk of damaging seals during assembly and helps get the correct fit quickly.

• Recommended tools: basic hand tools, clean rags, hydraulic fluid, and the provided assembly guide tool.
• Work in a clean, dry area and replace fluid or bleed the system after installation to remove air.
• If you’re unsure, a certified SeaStar technician or marine mechanic can perform the replacement to factory standards.

Does the HS5167 come with warranty or support?

SeaStar products carry a recreational-user warranty that covers manufacturing defects for a specified term. Warranty coverage helps protect your purchase but does not replace normal wear-and-tear items or damage from improper installation.

• SeaStar offers a two-year recreational-user warranty on its products against manufacturing defects.
• Keep proof of purchase and follow SeaStar installation guidelines to support any warranty claims.
• Contact SeaStar or your dealer for technical assistance or warranty questions.

Who is this for: The HS5167 front seal kit is for boat owners, yard technicians and marine mechanics who need a factory-compatible repair for SeaStar pivot or front-mount cylinders. Choose this kit when you detect front-end leakage, reduced steering responsiveness, or during routine cylinder overhaul to maintain hydraulic integrity and prolong the life of your steering components.