Raymarine

Raymarine Type 2 Pump 12V

SKU: 12744 · UPC: 00023193811215 · MPN: M81121
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02 · Overview

Raymarine Type 2 Pump 12V — Product description

Raymarine Type 2 Hydraulic Autopilot Pump 12V - Evolution Series Compatible (M81121)

Professional Evolution Autopilot Performance for Mid-Size Hydraulic Steering Systems

The Raymarine Type 2 Hydraulic Pump delivers precision autopilot control for boats with traditional hydraulic steering systems. Engineered specifically for vessels with 9.8-21 cubic inch (160-350cc) hydraulic steering rams, this reversing pump integrates seamlessly with Evolution autopilot systems to provide reliable hands-free steering in all marine conditions.

Advanced Evolution Autopilot Integration

Designed to work exclusively with Raymarine's Evolution autopilot systems, the Type 2 pump connects directly to your boat's hydraulic steering lines and allows the autopilot to control steering by managing hydraulic fluid flow. The pump receives commands from the Evolution Actuator Control Unit (ACU), delivering precise steering adjustments that adapt to changing sea conditions.

Professional Marine Engineering

  • Reversing hydraulic pump design for precise bi-directional control
  • Compatible with hydraulic rams 160-350cc (9.8-21 cubic inches)
  • Maximum operating pressure: 1,450 PSI for reliable performance
  • 12V DC operation integrates with standard marine electrical systems
  • Floor-mount configuration for secure installation
  • Compatible with 400 Series corepacks and ACU-400
  • Rugged marine-grade construction for long service life

Technical Specifications

  • Voltage: 12V DC
  • Maximum Pressure: 1,450 PSI
  • Cylinder Capacity Range: 160-350cc (9.8-21 cubic inches)
  • Pump Type: Reversing hydraulic
  • Mounting Type: Floor mount
  • Compatibility: Evolution autopilot systems, ACU-400
  • Steering System Type: Traditional hydraulic steering
  • System Configuration: Two-line and three-line hydraulic systems

Installation and System Integration

The Type 2 pump requires professional installation with proper connection to your boat's hydraulic steering lines. The pump supports both two-line and three-line hydraulic system configurations, with comprehensive bleeding procedures essential for optimal performance. The floor-mount design ensures secure installation while allowing easy access for maintenance.

Evolution Autopilot Compatibility

Specifically engineered for Raymarine Evolution autopilot systems, this pump works with ACU-400 control units and 400 Series corepacks. The Evolution system's advanced algorithms perceive environmental conditions and calculate precise steering commands, with the Type 2 pump executing these commands through accurate hydraulic pressure control.

Professional Installation Requirements

Installation requires connection to the boat's existing hydraulic steering system, proper hydraulic line routing, and complete system bleeding to eliminate air. EMC installation guidelines should be followed to ensure optimal performance and compliance with marine electronics standards. The comprehensive installation manual provides detailed procedures for various steering system configurations.

Marine Reliability and Warranty

Built to Raymarine's professional marine standards, the Type 2 pump features rugged construction designed for extended service life in harsh marine environments. Backed by a comprehensive 2-year limited warranty, this pump provides the reliability that serious boaters and marine professionals demand.

Frequently Asked Questions

What size hydraulic cylinders are compatible with the Type 2 pump?

The Type 2 pump is designed for hydraulic steering systems with cylinder capacities between 160-350cc (9.8-21 cubic inches). This makes it suitable for mid-size powerboats and sailboats with traditional hydraulic steering.

Which Raymarine autopilot systems work with this pump?

The Type 2 pump is compatible with Raymarine Evolution autopilot systems, specifically working with ACU-400 control units and 400 Series corepacks. It's not compatible with older SmartPilot systems without proper control unit upgrades.

Can this pump work with both inboard and outboard steering systems?

Yes, the Type 2 pump works with both inboard engine steering systems and outboard/sterndrive hydraulic steering configurations, as long as the hydraulic cylinder capacity falls within the 160-350cc range.

What installation requirements should I consider?

Professional installation is recommended, including proper hydraulic line connections, complete system bleeding to remove air, secure floor mounting, and connection to the Evolution ACU. EMC guidelines should be followed for optimal performance.

What is the maximum operating pressure for this pump?

The Type 2 pump operates at a maximum pressure of 1,450 PSI, providing sufficient pressure for reliable steering control in various sea conditions while maintaining system safety margins.

Boats with traditional hydraulic steering systems will use an Evolution autopilot driven by a hydraulic pump. The pump connects to the boat's hydraulic steering lines and allow the autopilot to steer the boat by controlling the flow of fluid through the boat's steering system. The hydraulic pump is controlled by the Evolution autopilot Actuator Control Unit.

Raymarine M81121 Attributes

  • Compatibility: Hydraulically Steered Boats
  • Maximum Pressure: 1450 PSI
  • Cylinder Capacity: 14 Cubic Inch To 21 Cubic Inch Capacity
  • Voltage Rating: 12 Volt
  • Mounting Type: Floor Mount

Raymarine M81121 Features & Benefits

  • Use For Most Hydraulically Steered Boats
  • 14 Cubic Inch To 21 Cubic Inch Capacity
  • Built To Last Longer Life
  • Rugged Design And Reliability
  • Limited 2 Year Warranty

Type 2 Pump 12Volt

Reversing hydraulic pump for use with steering systems equipped with 9.821 cubic inch (160-350cc) hydraulic steering rams. Compatible with 400 Series corepacks.

Designed for boats with existing hydraulic steering systems.


"Raymarine Evolution pilots connect to hydraulic steering systems using a rugged hydraulic pump matched to the capacity of the hydraulic steering system. If your system is hydraulic. You'll need to find out the size (in cc) of the hydraulic cylinder ram(s) mounted to the rudder or inboard engine boats, or to the drive unit on outboard engine boats. Your steering system documentation will have this information."
SKU: NVN-12744
MPN: M81121
UPC: 00023193811215
03 · The numbers

Technical specifications

BrandRaymarine
ModelRaymarine Type 2 Pump 12V
SKU / MFR#12744

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04 · Before you buy

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05 · Customer voices

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