Sea Mule Flushmaster Quick Connect Flush Port for Mercury Outboards, 75-500 HP Four Stroke, Racing, Pro CS, Verado

The Sea Mule Flushmaster Flush Port Quick Connect is a permanent replacement for the OEM flush port plug on Mercury outboard engines, giving you a fast, repeatable connection every time you flush the motor during routine maintenance. Instead of wrestling with the stock plug, you simply twist off the cap, connect a hose, flush the system, and reverse the steps when finished.

The quick connect is built from marine grade materials engineered to resist UV exposure and the corrosive effects of a marine environment, so it holds up to repeated outdoor use. A double O-ring design keeps the connection tight and leak free, and a secured locking cap guards against accidental disconnection while the engine is running or during storage.

This unit is compatible with Mercury Four Stroke, Racing, Pro CS, and Verado series outboards across all horsepower ratings from 75 HP to 500 HP, including V8 models. It installs into the engine cowling and locks in place with a quarter turn.

The kit includes a Mercury male quick connect, a female hose quick connect, a 90 degree elbow, a wrench, and a stainless steel hose clamp. The 90 degree elbow is provided to reroute the factory flush hose if the original routing is prone to kinking once the new fitting is installed.

Specifications

• Brand: Sea Mule
• Manufacturer Part Number: SM-FMQCM
• Compatible Engines: Mercury Four Stroke, Racing, Pro CS, and Verado series
• Horsepower Range: 75 HP - 500 HP, including V8 models
• Material: Marine grade materials
• Seal Design: Double O-ring
• Cap: Secured locking cap
• Environmental Resistance: Resistant to UV and marine corrosion
• Includes: Mercury male quick connect, female hose quick connect, 90 degree elbow, wrench, stainless steel hose clamp
• Weight: 0.5 pounds
• Category: Motor Flushers

Fitment

• Mercury Four Stroke, Racing, Pro CS, and Verado series outboards
• 75 HP to 500 HP, including V8 models

Frequently Asked Questions

What does the Sea Mule Flushmaster SM-FMQCM fit? The SM-FMQCM fits Mercury Four Stroke, Racing, Pro CS, and Verado series outboards across all horsepower ratings from 75 HP to 500 HP, including V8 models.

Does this replace the factory Mercury flush port plug? Yes, the Sea Mule Flushmaster quick connect is designed to permanently replace the OEM Mercury flush port plug so you get a quick connection every time you flush the engine.

How does the quick connect seal against leaks? A double O-ring design on the SM-FMQCM creates a tight, leak free seal at the connection point.

What is included with the SM-FMQCM? The kit includes a Mercury male quick connect, a female hose quick connect, a 90 degree elbow, a wrench, and a stainless steel hose clamp.

Why is there a 90 degree elbow in the kit? The 90 degree elbow is provided in case the factory Mercury flush hose kinks after the SM-FMQCM is installed; it lets you reroute the hose inside the cowling to avoid kinks.

How do I install the Sea Mule Flushmaster flush port on a Mercury outboard? Remove the OEM Mercury flush port plug and the lanyard from the engine hose, thread in the SM-FMQCM flush port quick connect, reinstall it into the engine cowling, and turn it a quarter turn clockwise to lock it in place.

What material is the flush port quick connect made from? The SM-FMQCM is constructed from marine grade materials designed to resist UV exposure and corrosion from marine environments.

How does the locking cap work? The SM-FMQCM has a secured locking cap that protects against accidental disconnection during routine flushing.

Is this quick connect compatible with V8 Mercury outboards? Yes, the SM-FMQCM is compatible with Mercury outboards from 75 HP to 500 HP, including V8 models.

Can I use this on a Verado outboard? Yes, the Sea Mule Flushmaster SM-FMQCM is compatible with the Mercury Verado series in addition to Four Stroke, Racing, and Pro CS engines.

What should I check if the flush hose kinks after installing the quick connect? Remove the cowling and inspect the flush hose; if it kinks, replace the Mercury 3/4 inch female hose outlet with the included 90 degree elbow and orient it inside the cowling so no kinks remain.