Raymarine Drive Unit Selection

 

Raymarine SmartPilot systems accommodate hydraulic, mechanical and power assisted stern drive systems. If you are not sure how to determine what type of steering system is installed on your vessel, please consult an authorised Raymarine dealer.

 

The Drive unit is the part that interfaces with your vessel's steering system to keep you on the right course. Raymarine has a broad range of drive units to match almost any type of steering system. 

 

Select your steering type below to explore available drive units...

  

 

Raymarine Hydraulic Steering Systems

 

Raymarine SmartPilots 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 engined boats, or to the drive unit on outboard engined boats. Your steering system documentation will have this information.

 
 

 

Autopilot Tip

 

If you cannot find the ram size on your steering system documentation, you can look on the cylinder ram itself for the brand and model number. Once you have the number use our hydraulic cylinder ram cross-reference guide to determine which hydraulic autopilot pump is compatible with your vessel's hydraulic steering system.

 

 

   
Raymarine Type 0.5 Hydraulic Pump
  
Raymarine Type 1 Hydraulic Pump
  
Raymarine Type 2 Hydraulic Pump
Raymarine Type 3 Hydraulic Pump
 CR Pump  
Drive Type

Type 0.5 (12V)

12V: E12139

Type 1 (12V or 24V)

12V: M81120
24V: M81119

Type 2 (12V or 24V)

12V: M81121
24V: M81123

Type 3 (12V or 24V)

12V: M81122
24V: M81124

Constant Running Pump 
(12V or 24V)

12V: E12171
24V: E12172
Vessel Displacement

Does not apply here. The drive unit is matched to the ram capacity of the steering system 
Ram Capacity  

 50cc-110cc
(3.1in3–6.7in3)

80cc – 230cc
(4.9in3–14in3)

  230cc – 350cc

(14in3–21in3)

  350cc – 500cc

(21in3–30.5in3)

500cc - 1200cc
(30.5in3 - 73in3)
Maximum Stall Pressure at 12V 

50bar

(750psi)

100bar

(1450psi)

80bar

(1160psi)

57 bar

(827psi)
Peak Flow Rate (No Load)
1000cc/min
(67in3/min)
2000cc/min
(122in3/min)
2900cc/min
(175in3/min)

4500cc/min

(274.6in3 / min)
Corepack Used
SPX 10
SPX 30

SPXSOL

 

 

Notes:
  • In some systems with dual steering rams in parallel, cylinder capacity is the total of both rams. Rams in series only require single capacity valve. Hydraulic steering systems with steering rams over 500cc require our larger constant running pump used in conjunction with SPX and SPX-SOL course computers - contact Raymarine for details.
  • An authorised Raymarine dealer is best suited to installing a hydraulic autopilot system.
  • Type 0.5 suitable for Volvo D4/D6 Sterndrive applications.
 

 

 



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