Meet the Marine Inboard Heavy Duty Hydraulic System — a purpose-built steering solution designed for inboard boats with rudders. Built around Maxtek’s trusted hydraulics, this complete kit delivers precise, dependable steering under load, across saltwater adventures and demanding conditions alike. If you’re upgrading an older setup or outfitting a new build, this system provides the durability and smooth response you need for confidence on deck and at the helm.

What’s included in the complete kit

• 44cc Heavy Duty Commercial Helm Pump — engineered for reliable leverage and responsive steering
• Heavy Duty IOC Cylinder — stainless steel shaft with an anodized aluminum body for rugged corrosion resistance
• 20 meters of 3/8-inch high-quality, double-sheath Japanese hydraulic hose — built to withstand abrasion, flex, and vibration
• 4 liters of Maxtek Marine Hydraulic oil — ready to fill and go for steady, smooth operation
• Bleed kit — ensures fast, easy removal of air for instant steering feel
• Complete hardware and fittings required for a straightforward installation
• Product Number STMI96N — shipped directly from the supplier for streamlined fulfillment

Why this system stands out

• Engineered for engines up to 140hp: a perfect match for a broad range of inboard boats, ensuring reliable steering control across demanding conditions.
• Rugged, marine-grade components: stainless steel shaft and anodized aluminum cylinder body resist corrosion in saltwater environments, extending service life in harsh marine climates.
• Premium hose with double-sheath protection: 20 meters of 3/8-inch hose maintain integrity under engine flex, steering motions, and vibration, minimizing the risk of leaks or fatigue.
• All-in-one kit, ready to install: everything you need included (pump, cylinder, hose, oil, bleed kit) to get you steering quickly and confidently.
• Direct-supplier shipping: cleared for easy procurement and predictable fulfillment, so you can plan installs with less delay.

Who is this for?

Ideal for boaters upgrading an inboard steering system, especially vessels with a rudder setup and a target range up to 140hp. It suits sport boats, center consoles, fishing craft, and work boats where dependable, steady steering is critical for maneuvering in tight spaces, rough seas, or docking situations. If you value a robust hydraulic solution that resists corrosion and supports long-term performance, this kit is a strong fit.

How it solves real-world problems

• Precision under load: the 44cc helm pump and sturdy cylinder deliver accurate, proportional steering feedback, even when the boat is pitching or the engine is running at higher torque.
• Durability in tough environments: corrosion-resistant materials and a shielded hose design protect your steering system from salt, spray, and vibration.
• Quick setup and maintenance: the included bleed kit makes it easier to purge air and restore a smooth steering feel, while the oil provides proper lubrication for long service life.
• Reliability where it counts: a complete kit means fewer compatibility issues and a coherent, tested assembly designed to work together as a single system.

Tips for installation and care

Plan your routing to minimize hose bends and protect the line from abrasion. After installation, bleed the system using the included kit to remove air for immediate steering response. Check the hydraulic oil level periodically and replace as needed to maintain optimal performance. For best results, reference the model STMI96N when ordering parts or reordering accessories.

Specifications at a glance

• Compatibility: engines up to 140hp
• Helm Pump: 44cc heavy-duty commercial
• Cylinder: IOC with stainless steel shaft and anodized aluminum body
• Hydraulic hose: 20m of 3/8-inch, double-sheathed
• Hydraulic oil: 4 liters included
• Bleed kit included
• Shipped directly from supplier
• Product Number: STMI96N

Upgrade to the Marine Inboard Heavy Duty Hydraulic System for a resilient, precise, and straightforward steering solution that’s built to endure. This complete Maxtek kit puts dependable control at your fingertips, helping you navigate with confidence in every waterway.