Flush Port Reroute - Black Acrylic

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Flush Your Motors, Not Your Time

Experience a more organized way to maintain your outboards with the Flush Port Reroute. This professional-grade solution relocates your flush ports to a centralized panel, moving connections from feet apart to inches apart for a safer, more convenient flushing experience.

man falling off back of single mercury engine boat trying to flush

Stop the transom balancing act. Moving ports to the cockpit keeps both feet on the deck, making engine maintenance safer by eliminating the need to reach over slippery brackets.

dual flush port reroute with flush hoses connected

Built with the same locking-cap design as our engine quick-connects. Our universal fittings use a double O-ring design to ensure a rock-solid, airtight seal that won't seize. Adapters come with 316 SS springs.

black acrylic dual outlet flush port reroute installed on white boat with dual mercury outboards

The pro-style alternative to DIY kits. These laser-cut panels offer a "factory" look used on custom builds, creating a clean hub that matches your boat's aesthetic.

Black acrylic triple outlet flush port reroute plate on white boat with triple yamaha outboards

Cut from 1/4" UV-stable acrylic with 316 Stainless Steel hardware. Built to handle constant salt spray and direct sunlight without yellowing, cracking, or corroding.

The primary connection for the Flushmaster Controller. Centralizing your ports creates a single plug-in point to sequentially flush up to four engines with one touch.
*Keeps hose length short

Dimensions & Specs

Dimensions

Specs

Flush Capacity: Sequentially flushes 1–4 engines in a single cycle when paired with a controller.
Materials: 1/4" UV-stabilized Marine-Grade Acrylic and 316 Stainless Steel hardware.
Flush Application: Connects via the included female adapter to any standard garden hose or Flushmaster outlet hose.
Fittings: Includes Universal Quick Connects and the necessary female adapters for a complete installation.
Compatibility: Universal application for any outboard with a factory flush port (including Mercury, Yamaha, Suzuki, and Honda).

Comes With

Included in the Box

Flush Port Reroute Plate
(1) Quick Connect with barb - per outlet
(1) 316 SS nut - per outlet
(1) Rubber gasket - per outlet
(1) Female connector for hose end - per outlet

Tools needed:

Reinforced marine-grade hose
T adapter fittings
316 SS hose clamps
Drill with 7/64" or 1/8" bit
Hole Saw or Jigsaw
316 SS #8 Fasteners

Safety Note:
Plumbing requirements vary by engine and vessel. We recommend installation by a qualified marine technician.

How It Works

The Flush Port Reroute moves your engines’ OEM flush ports to a clean, accessible panel inside the boat. Just run a reinforced marine-grade hose through your existing rigging tube and connect directly to each engine’s flush port from inside the cowling.

Choose your mounting location for the Reroute plate
Access the flush line inside the engine cowling and integrate a new reinforced hose line using standard rigging practices
Guide the hose through the cowling into the rigging tube and run to the Reroute plate
Use the included template to prepare the area for mounting
Secure the hose line to the barbs on the Reroute plate and mount plate

When it’s time to flush, simply connect your garden hose to the new flush point — no climbing, stretching, or leaning over the motor.

black and white acrylic flush port reroute plates

Which One Do I Need?

Use these options to pick the right Reroute for your boat setup.

# of Outlets - Choose from Single, Dual, Triple, or Quad outlets based off the number of engines.
Install Orientation - Choose from Vertical or Horizontal orientation based on how you are installing.
Barb Size - Choose between 1/2" or 3/8" hose barbs to match the existing hose of your flush line.

flushmaster controller housed in cradle mounted to dock piling flushing dual yamaha outboards

Part of The Flushmaster System

The Flush Port Reroute is the premium interface of the Flushmaster ecosystem. It relocates your flush points from the engine to a safer location inside the boat—and pairs perfectly with the Flushmaster Controller for fully automated, timed maintenance for up to four engines.

Whether you’re flushing manually or building toward a complete system, the Reroute plate is the professional foundation for a cleaner, safer, and more organized boat.

Learn More

FAQs

Does this bypass my engine’s internal check valves?

No. You are simply extending the reach of the factory freshwater line. All internal engine engineering and safeguards remain fully intact.

Can I install this myself?

We always recommend using a marine professional when installing or cutting into your boat. However, if you can install speakers, you should be able to do this install.

Rely on manufacturer or mechanic for assistance.

Can I add a port for my freshwater washdown?

Yes. Many boaters purchase a larger plate (e.g., a Triple plate for a Twin engine setup) to use the extra port as a centralized freshwater washdown connection.

Does this replace my factory flush ports?

No, it extends them. You are simply rerouting the internal freshwater line to a more convenient location. All factory check valves and engine safeguards remain fully intact.

Can I mount this anywhere on the boat?

Technically, yes, but we recommend mounting it in the cockpit, under the gunwale, or near the transom door. You want it somewhere accessible but protected from accidental kicks or heavy foot traffic.

Does it come with the hose needed for the reroute?

No. Because every boat requires different lengths of hose, the kit includes the Reroute Plate, Quick Connects, and hardware. You (or your installer) will need to provide the marine-grade hose to bridge the gap between your engine and the new plate.