KOHUIPU HC5345 Seal Kit for SeaStar Hydraulic Steering Cylinders — Complete Seal Set with Pin Wrench & Gland Tools

The KOHUIPU HC5345 Seal Kit is a complete replacement pack for SeaStar-style hydraulic steering cylinders, including a pin wrench, gland tool and all essential seals to restore smooth steering performance.

When a pivot or front-mounted hydraulic steering cylinder starts to leak or feel spongy, replacing worn seals is the most cost-effective way to regain precise control. This kit is designed to match SeaStar OEM-style components and fits a wide range of cylinder model numbers, bringing together durable metal fittings, precision-molded rubber seals and a specialist pin wrench to make disassembly and reassembly far easier for professionals and experienced DIYers alike.

Which hydraulic cylinders does this seal kit fit?

The kit is compatible with many SeaStar-style cylinders commonly used on outboard steering systems. It covers earlier and later HC series part numbers so you can buy with confidence when repairing a variety of helm setups.

• Fits HC5340 through HC5348 family members and related HC53xx models
• Also compatible with HC5358, HC5365, HC5375 and HC5394
• Covers HC5445 and HC6750–HC6755 series cylinders

What comes in the kit and how does it help during repair?

This package contains the parts and tools needed to replace internal seals and reinstall the gland without improvising. That reduces downtime and the risk of damage from improper tools.

• 2 aluminum/steel gland pieces for the cylinder assembly
• 8 O-rings in assorted sizes to replace all worn sealing surfaces
• 1 pin wrench and 1 gland-assembly guide tool to locate and tighten components correctly

What materials and quality can I expect from KOHUIPU components?

All metal parts are CNC-machined for accurate fit and high surface finish, while seals are made from durable rubber formulated for hydraulic fluid exposure. The combination reduces wear and helps maintain pressure integrity over time.

• Precision-machined aluminum and steel for strength and corrosion resistance
• High-grade rubber seals designed for hydraulic fluid compatibility
• Components sized to match SeaStar tolerances for reliable replacement

How does this kit make professional repairs faster?

Including the correct gland pieces and a pin wrench eliminates the need to source specialty tools mid-job. Clear compatibility and a full set of replacement seals let a technician complete cylinder service in fewer steps.

• Pin wrench speeds removal and installation of retaining fasteners
• Guide tool ensures correct gland seating and alignment
• Complete seal assortment avoids repeated service trips for missing parts

Who is this for: The KOHUIPU HC5345 Seal Kit is intended for marine technicians, boat owners with mechanical experience and repair shops that service outboard hydraulic steering. If you maintain SeaStar-style steering cylinders and need a reliable, ready-to-use replacement seal set with the right tools for accurate reassembly, this kit supplies the parts and workmanship required to complete a professional-level repair.