Simrad Autopilot Pump Fitting Kit, ORB Steering, MKII Pumps 1-5, SteadySteer Flow Switch

Overview

The Simrad 000-15949-001 is a pre-made hose and fitting kit for ORB hydraulic steering setups that adds a SteadySteer flow switch into the plumbing on Simrad MKII autopilot pumps 1 through 5. It includes 5/16 in hydraulic hoses rated to 1500 PSI max, with 9/16-18 UNF hose ends and matching ORB fittings so you can plumb the flow switch without cutting and assembling hydraulic hose on the boat.

With SteadySteer active, you can steer a turn manually at the helm and the autopilot disengages while you are turning, then reengages once a new heading is established. It keeps course changes feeling more natural when you are threading a channel, making a quick correction around traffic, or hand-steering through a turn and returning to autopilot on the next leg.

Key features

• Fits ORB steering installations using Simrad MKII Pump 1, 2, 3, 4, or 5.
• Includes a SteadySteer flow switch so helm input can override the autopilot through turns and the autopilot can reengage after the heading settles.
• Pre-made 5/16 in hoses (1500 PSI max) with 9/16-18 UNF ends for clean, consistent hydraulic connections.
• ORB and UNF connectors included to integrate the flow switch into the hydraulic circuit without guesswork on fittings.
• Two 1/4 in NPT to 9/16-18 UNF adapters support common port transitions found in pump and manifold plumbing.
• Hydraulic fluid bottle and a filter funnel are included to help with refilling and bleeding after installation.

What’s included

• 2 hoses, 5/16 in diameter, 810 mm (31.9 in) length, 9/16-18 UNF to 9/16-18 UNF (1500 PSI max)
• 2 hoses, 5/16 in diameter, 360 mm (14.2 in) length, 9/16-18 UNF to 9/16-18 UNF (1500 PSI max)
• 2 T connectors, ORB-5 to 9/16-18 UNF to 9/16-18 UNF
• 1 right-angle connector, ORB-05 to 9/16-18 UNF
• 2 adapters, 1/4 in NPT to 9/16-18 UNF
• 1 SteadySteer flow switch
• 1 bottle of hydraulic fluid
• 1 filter funnel

Compatibility and fit

This kit is intended for ORB hydraulic steering systems using Simrad MKII Pump 1 to 5. Hose ends and fittings in the kit are based around 9/16-18 UNF, with ORB-05 and ORB-5 connectors and two adapters that transition from 1/4 in NPT to 9/16-18 UNF.

SteadySteer functionality is supported with NAC-2 or NAC-3 autopilot computers (software version 1.1.01.00 or newer), AP44, IS42, or AP48 (software version 57.3.163 or newer), and Simrad multifunction displays (software version 20.2 or newer).

Installation and setup

Plan hose routing before opening the hydraulic system. Keep bends gentle, route away from engine heat, and protect runs that pass through lockers or under the helm so chafe does not become a leak later.

After plumbing the flow switch and fittings, refill and bleed the steering and pump circuit until the helm feels solid and the pump runs without aeration. Once the system has cycled under load, recheck every fitting for any sign of seepage.

Maintenance and care

Check hose runs and fittings periodically, especially after work in the helm area, rigging tunnels, or around the pump. Keeping the area clean and dry makes it easier to spot a new damp fitting early, before it turns into air in the steering circuit.

Shipping
We ship worldwide from the United States. Rates are calculated at checkout based on destination and package weight. Some items include free shipping, which will show automatically. Not every product is eligible for international shipping; checkout will confirm eligibility. We do not ship to PO Boxes except through USPS, and not all packages qualify.

Processing and dispatch
Most orders are verified, packed, and handed to the carrier within 1 to 2 business days. Some products may need extra handling time or ship directly from the manufacturer. For certain international orders, inventory transfers between warehouses may add time. If any delay is expected, we will let you know the dispatch date.

Delivery and tracking
Deliveries are handled by trusted carriers such as USPS, UPS, FedEx, and DHL. Estimated arrival times appear at checkout and depend on your location and the service you choose. These are estimates and can be affected by customs or carrier disruptions. A shipping confirmation with a tracking link is emailed when your order ships, and tracking may take up to 24 hours to update. You can also view tracking in your account.

Duties, taxes, and support
International customers are responsible for any customs duties, taxes, and fees charged by the destination country. If these charges are refused and a shipment returns to us, the carrier’s return cost and any re-entry customs fees will be deducted from the refund. If your order is late or you need help, contact cs@qualityboatparts.com and we will assist you.

Quality Boat Parts is a reseller. Many items include a manufacturer’s warranty, and all warranty service is handled directly by the manufacturer. We do not manage or administer warranty claims on behalf of customers.

Warranty terms, coverage, and duration are set by each manufacturer. Issues involving defects, repairs, or replacements must be addressed with the manufacturer’s support team. When available, the warranty period is listed on the product page. If it is not shown, contact us or the manufacturer for details before purchasing.

To start a claim, the customer must contact the manufacturer and follow their process. Keep your proof of purchase and original packaging, and register the product if the manufacturer requires it, as these are often needed for warranty service.

We are happy to help you find the right contact or documentation, but we cannot decide outcomes or intervene in claim resolutions. For guidance, email cs@qualityboatparts.com.