Simrad Autopilot Fitting Adapter Kit, For MK2 Pump-1-5, 3x ORB-5 to 1/4 in NPT Female Adapters
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Overview
The Simrad 000-15944-001 is an autopilot adapter kit that converts ORB-5 ports to 1/4 in NPT, which helps when replacing an older hydraulic pump with a MkII Pump 1, 2, 3, 4, or 5 while keeping an existing NPT hose kit in place.
It installs at the pump ports in a hydraulic autopilot system, so you can match the pump connection style to the hoses already on the boat. That can save time during a retrofit or service job where the plumbing is in good shape and you want to avoid re-terminating hoses.
Key features
- Converts ORB-5 at the pump to 1/4 in NPT for compatibility with NPT-based hose kits.
- Used when upgrading from older pumps to MkII Pumps 1, 2, 3, 4, and 5.
- Keeps the conversion at the pump end, which helps preserve existing hose routing and manifold layout.
- Practical for refits where you want to update the pump without rebuilding the hydraulic connections.
What's included
- 3 x ORB-5 to 1/4 in NPT adapters
Compatibility and fit
Confirm the replacement pump has ORB-5 ports and the hoses you plan to keep terminate in 1/4 in NPT. This kit is for adapting the port and hose interface; it does not replace hoses, hose kits, or other autopilot components.
Installation and setup
Plan on treating this like any hydraulic connection at the autopilot pump: relieve pressure in the steering circuit before opening lines, keep the work area clean, and protect nearby surfaces from hydraulic fluid. After the fittings are installed and lines are reconnected, bleed the system using the procedure appropriate for your steering and autopilot setup, then recheck connections for any sign of seepage once the system is under load.
Use cases on board
This kit is most relevant for owners and installers working on hydraulic autopilot retrofits where the boat already has NPT hose plumbing and the pump being fitted uses ORB ports. It is commonly used on cruising and fishing boats where the autopilot pump is mounted near the steering ram or a hydraulic manifold and access is limited, making a simple fitting conversion worthwhile.
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