Flushmaster Flush Port Quick Connect f/Mercury Outboards [SM-FMQCM]
SKU: 9757015478

Flushmaster Flush Port Quick Connect f/Mercury Outboards [SM-FMQCM]

Sale price$80.99 Regular price$89.99
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Ships within 48 hours · Estimated delivery Jul 7 - Jul 12

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Description

Flushmaster Flush Port Quick Connect f/Mercury Outboards [SM-FMQCM]Flush Port Quick Connect for Mercury Outboards The Flush Port Quick Connect for Mercury outboards makes flushing your Mercury outboards easier, faster, and more securely. Designed to replace factory flush ports, this kit installs in minutes and gives you a permanent, leak free connection built to withstand the toughest marine environments. Crafted from durable, corrosion resistant materials, including 316 stainless steel and high grade polymers, the

Flush Port Quick Connect for Mercury Outboards

The Flush Port Quick Connect for Mercury outboards makes flushing your Mercury outboards easier, faster, and more securely. Designed to replace factory flush ports, this kit installs in minutes and gives you a permanent, leak-free connection built to withstand the toughest marine environments.

Crafted from durable, corrosion-resistant materials, including 316 stainless steel and high-grade polymers, the Flush Port Quick Connect is built for life around saltwater. With the included 90-degree elbow fitting, you’ll avoid hose kinks and ensure maximum water flow for a more complete, effective flush every time.

Whether you're flushing with your Flushmaster system or a standard water hose, this upgrade means no more stripped threads, no more frustration, and no more excuses — just a faster, easier way to protect your engine and extend its life.

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

Features:

  • Replaces OEM Flush Port
  • Marine-Grade & 316 SS Construction
  • Leak-Free Performance
  • Easy To Install
  • Hassle-Free and Saves Time

What's Included?

  • (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

Product Installation:

  • Remove the OEM Mercury flush port plug.
  • Unscrew the Mercury OEM plug from the 3/4" female hose outlet.
  • Remove the lanyard from the engine hose.
  • Thread your new Flushmaster Flush Port Quick Connect to the flush port.
  • Reinstall the Flushmaster Flush Port Quick Connect into the engine cowling.
  • Give it a 1/4" turn clockwise to lock it in place.

Helpful Tip: Remove the cowling and inspect the flush hose for any kinks. If a kink exists, replace the Mercury 3/4" female hose outlet with the provided elbow. Orient the elbow inside the cowling to ensure no kinks are in the Mercury flush hose. (To help insert the 90-degree elbow, lube the barb or use a heat gun on the flush hose.)

WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.


Quick Guide (pdf)
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 9757015478

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4.8 ★★★★★
Based on 965 reviews
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christy
Alexandria, US
★★★★★ 5
It works!!!!
Size: 2 fl oz
This stuff works!!!!!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 29, 2026
D
Verified Purchase
Dave Wright
Los Angeles, US
★★★★★ 5
STA-BIL Start Your Engines! Because Sometimes Engines Need a Pep Talk
Size: 2 fl oz
So, STA-BIL Start Your Engines! is basically that friend who shows up uninvited but actually saves the day. You know, the one who doesn’t ask questions and just gets your engine running when it’s feeling moody or sluggish. Does it work? Of course it does. Like, “put a little in your gas tank, say a quick prayer, and voila!” kind of work. Suddenly your car remembers how to start, and you feel like a mechanic genius without actually lifting a wrench. It’s simple, it’s reliable, and it doesn’t judge you for letting your gas sit around until it gets that “I don’t want to cooperate” attitude. Pros: Makes your engine start like it just had an espresso shot. Easy to use — even if you’re barely awake in the morning. No weird smells or smoke signals, just clean, smooth starting. Cons: Won’t fix your “I forgot to put gas in” problem. Sadly, can’t make your car drive itself to work (yet). You might start relying on it a little too much — hey, no judgment. Final Verdict: ⭐️⭐️⭐️⭐️⭐️ – 5 stars. If your engine is feeling lazy, this stuff just works. It’s like a pep talk in a bottle for your car. Highly recommended for anyone who’s ever cursed their ignition.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 17, 2025
N
Verified Purchase
Nobody
New York, US
★★★★★ 5
GREAT PROPDUCT
Size: 2 fl oz
EXCELLENT
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 27, 2026
A
Verified Purchase
Amazon Customer
Carnegie, US
★★★★★ 4
Cleans Out Working Carburetors
Size: 2 fl oz
I recommend this product for engines that will in fact start but not run well. I highly recommend it for that specific purpose, which it is designed for. It cleans the inner workings of the carburetor. Of course, you will have a cleaner carburetor if you take it apart and clean it with proper tools and a proper carburetor cleaner. You spray it in the gas tank, start the engine, and let it run a bit. It will not start an engine with a totally plugged up carburetor. Nothing is going to do that. Nor is it a fuel stabilizer, as one previous reviewer seemed to think. Nor is it a product to be used to bring life back to stale gasoline, as another reviewer seemed to think. The only thing to do with stale gasoline is drain it out and pitch it. Nor is it a product to be used for cleaning a carburetor you have taken apart to clean. You should use a proper carburetor cleaner for that purpose. I've given it four stars because it cleans out mildly plugged up carbs. It is not a miracle solution for really neglected carbs as the name suggests.
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Reviewed in the United States on April 12, 2020
R
Verified Purchase
Ray
Port Orchard, US
★★★★★ 5
Helps fixing small engines
Size: 2 fl oz
⭐⭐⭐⭐⭐⭐⭐
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 16, 2026

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