Compact Hydraulic Autopilot Solution for Small to Mid-Size Vessels

The Simrad PUMP-1 MKII hydraulic autopilot pump delivers precision steering control for vessels with SeaStar manual helm pumps up to 14 cubic inches. This compact 0.8-liter reversible pump integrates seamlessly with Simrad autopilot systems, providing reliable autonomous steering for outboard and sterndrive boats with existing hydraulic steering installations.

SeaStar System Compatibility

Specifically engineered for compatibility with SeaStar manual helm pumps, the PUMP-1 MKII works perfectly with steering systems up to 14 cubic inches capacity. The included O-Ring Boss (ORB) fittings ensure secure, leak-free connections to modern SeaStar hydraulic steering systems, making it an ideal choice for retrofitting autopilot capabilities to existing hydraulic steering installations.

Professional Marine Engineering

• Reversible hydraulic pump design for precise bi-directional steering control
• 0.8-liter capacity optimized for SeaStar helm pumps up to 14 cubic inches
• 12V DC operation integrates with standard marine electrical systems
• Marine-grade construction for long-term reliability in harsh environments
• Compact design minimizes installation space requirements
• Professional O-Ring Boss fittings for secure hydraulic connections
• Compatible with NAC autopilot control units

Technical Specifications

Complete Installation Package

The PUMP-1 MKII includes everything needed for professional installation, featuring three precision-machined ORB-5 to 9/16 UNF fittings that provide secure connections to SeaStar steering systems. The O-Ring Boss design ensures leak-free operation while simplifying installation compared to traditional NPT thread connections.

Autopilot System Integration

Designed to work seamlessly with Simrad's NAC autopilot control units, the PUMP-1 MKII receives steering commands from the autopilot processor and translates them into precise hydraulic pressure changes. This integration provides smooth, responsive autopilot performance while maintaining the feel and reliability of your existing SeaStar steering system.

Compact Design Advantages

The PUMP-1 MKII's compact 0.8-liter design makes it ideal for smaller vessels where space is at a premium. Despite its small footprint, the pump delivers sufficient flow and pressure for reliable autopilot operation on boats with steering cylinder capacities up to 14 cubic inches, making it perfect for center console, bay boat, and small cruiser applications.

Professional Installation Requirements

Installation requires connection to your vessel's existing SeaStar hydraulic steering system using the provided ORB fittings. Professional installation is recommended to ensure proper hydraulic line routing, secure mounting, and complete system integration with your Simrad autopilot components. Additional hydraulic fluid may be required to complete the system.

Marine Environmental Protection

Built to withstand the demanding marine environment, the PUMP-1 MKII features corrosion-resistant materials and seals designed for long-term exposure to saltwater conditions. The robust construction ensures reliable operation through temperature extremes and challenging sea conditions.