Flush Port Quick Connect for Mercury - Flushmaster
Flush Port Quick Connect for Mercury
Flush Port Quick Connect for Mercury - Flushmaster
Flush Port Quick Connect for Mercury - Flushmaster
Flush Port Quick Connect for Mercury - Flushmaster
Flush Port Quick Connect for Mercury - Flushmaster
Flush Port Quick Connect for Mercury - Flushmaster
Flush Port Quick Connect for Mercury - Flushmaster
Flush Port Quick Connect for Mercury - Flushmaster
Flush Port Quick Connect for Mercury - Flushmaster
Flush Port Quick Connect for Mercury - Flushmaster
Flush Port Quick Connect for Mercury - Flushmaster
Flush Port Quick Connect for Mercury - Flushmaster
Flush Port Quick Connect for Mercury - Flushmaster
Flush Port Quick Connect for Mercury
Flush Port Quick Connect for Mercury
Flush Port Quick Connect for Mercury
Flush Port Quick Connect for Mercury
Flush Port Quick Connect for Mercury

Key Highlights

Marine-grade
Leak-Free
Easy Install
30-Day Guarantee, 1-Year Warranty

Flush Port Quick Connect for Mercury

Stronger Connections. Smarter Protection.

$89.99
  • No More Stuck Caps
  • Permanent, leak-free upgrade to factory flush
    ports
  • Marine-grade durability for saltwater use
  • Fast, effortless flushing with secure connection
  • Simple installation – ready in minutes
  • Hassle Free and Saves Time
Color
Color: Black
Complete Your System

Free Domestic Shipping

30-Day Guarantee

Fast, Reliable Customer Support

Key Highlights

Marine-grade
Leak-Free
Easy Install
30-Day Guarantee, 1-Year Warranty

Product details

The Flush Port Quick Connect for Mercury Outboards eliminates the frustration of stuck caps, stripped threads, and tedious hose connections — delivering fast, easy, and reliable flushing with better visual protection for your engine.

Specs

  • Materials: Marine-grade construction with 316 stainless steel internals
  • Installation: Replaces OEM flush port with secure, leak-free connection
  • Corrosion Protection: Built for saltwater and harsh environments
  • Application: Works with Flushmaster system or direct hose connection

Comes With
  • (1) Mercury Male Quick Connect
  • (1) Female Hose Quick Connect (Black)
  • (1) 90-degree Elbow (goes inside the cowling to ensure no kinks are in the Mercury flush hose; use if necessary)
  • (1) Wrench for Tightening
  • (1) Stainless Steel Hose Clamp
Installation

Mercury Installation

  • On your engine cowling: remove the original OEM plug.
  • Unscrew the OEM plug from the female hose outlet. 
  • Carefully remove the lanyard from the engine hose.
  • Thread in your new Flush Port Quick Connect to the flush port.
  • Reinstall the Flush Port Quick Connect into the engine cowling with the provided wrench, giving it a ¼” turn in the clockwise direction to lock it in place.

Remove cowling and inspect flush hose for any kinks in the hose, if there is a kink, replace the Mercury female hose outlet with the provided elbow and hose clamp. Orient the elbow inside the cowling to ensure no kinks are in the Mercury flush hose.

Your outboard engine is now prepared for use or flush.

To flush, remove the secured cap by turning counter clockwise ¼” and pull to release. Attach your Flushmaster hose or a water source to the included female quick connector. Connect the female Quick Connect to the flush port. Follow manufacturer specs for flushing, reinstall the cap when finished. 

Compatibility

Compatible Mercury Outboards listed HERE
Load video:

Real problems.

Real solutions.

Watch and see why our products are the future of outboard flushing — and why you’ll want to make the switch today.

Flush Port Quick Connect for Mercury

Flushing your Mercury outboard shouldn’t feel like a wrestling match — but if you’ve ever struggled with that impossible factory flush port cap, you know it often does.

Even on brand-new engines, removing the OEM cap is frustrating. It's wedged in tight, and many owners end up damaging or stripping it while trying to pry it loose with tools. The Flush Port Quick Connect for Mercury Outboards eliminates all that hassle, permanently.

This easy-to-install upgrade replaces the factory cap system with a secure quick-connect fitting that’s simple to use. No more digging at stuck caps, threading and unthreading hoses, or fighting to wedge the cap back into place after flushing. Just snap on, flush, and snap off—it’s that easy.

Our design also improves on Mercury’s original cap with a larger, more visible weephole indicator. Like the OEM design, this small drainage port helps detect check valve issues — but ours is easier to monitor at a glance, giving you faster warning and greater peace of mind.

Built tough for saltwater environments and daily use, the Flush Port Quick Connect is the smarter, faster way to protect your Mercury outboard — whether you’re flushing at the dock, on a trailer, or in dry storage.

Use it with a standard reinforced hose, or pair it with a Flushmaster system for the ultimate convenience.

NOTE: The opening in the top of the Mercury Quick Connect cap serves as an indicator of check valve failure and is required by the OEM

Product Patented

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