SIMRAD PUMP-4 MKII
- 12V DC: Reversible hydraulic gear pump.
- 3.0L (183 cui) / min. For cylinder displacement of 290 - 960 cc (17.7 - 58.5 cu. in.).
- O-Ring Boss (ORB) connections.
- Includes 3 x ORB-5 to 9/16 UNF fittings.
- SteadySteer compatible. (NAC-3 / AC42 required).
- Optional hose fitting kits are available to assist with your PUMP-4 MKII installation.
The PUMP-4 is a reversible hydraulic gear pump for boats up to 70ft. It works in conjunction with the NAC-3 / AC42 autopilot computers as part of an autopilot system.
A marine autopilot drive unit translates instructions from your autopilot system into movements of your rudder or outboard. The drive unit you’ll need depends on the type of steering system you have and the size of your boat.
There are two main types of drive unit:
Hydraulic steering pumps add autopilot capabilities to outboard or sterndrive (inboard/outboard) vessels with existing hydraulic steering systems.
Mechanical drive units add autopilot capabilities to cable-steer runabouts and larger rudder-steered vessels with inboard engines.
| Steering System | Size/Capacity/Compatibility | Recommended Drive Unit | Required Computer |
| Outboard/Stern Drive with Hydraulic Steering | Hydraulic cylinder < 15 cubic in or 250cc | PUMP-2 | NAC-2 |
| Hydraulic cylinder(s) 10-33 cubic in or 160-550cc | PUMP-3 | NAC-3 | |
| Hydraulic cylinder(s) 17-58 cubic in or 290-960cc | PUMP-4 or PUMP-5 | NAC-3 | |
| Outboard/Stern Drive with Mechanical Steering | Compatible with Morse 290,304411 and TeleflexSSC52 cables | HELM-1 | NAC-2 |
| Inboard with Hydraulic Steering | Hydraulic cylinder < 15 cubic in or 250cc | PUMP-2 | NAC-2 |
| Hydraulic cylinder(s) 10-33 cubic in or 160-550cc | PUMP-3 | NAC-3 | |
| Hydraulic cylinder(s) 17-58 cubic in or 290-960cc | PUMP-4 or PUMP-5 | NAC-3 |
In the Box
SIMRAD PUMP-4 MKII 12vDC Reversible Pump with 3 x ORB-5 to 9/16 UNF fittings.
| Spec | |
| Supply Voltage | 12vDC |
SIMRAD PUMP-4 MKII 3.0 L/min 12vDC Reversible Pump
- Brand: SIMRAD
- MPN: 000-15446-002
- Model: PUMP-4 MKII
- Availability: Pre-Order
- Lead Time: 5-7 days
-
£1,309.99
- Ex VAT:£1,091.66
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Tags: Reversible Pump, Simrad Reversible Pump, Hydraulic Pump, RPU300 pump, Pump-4
