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SeaMule SM-FM4020 FlushMaster 4-Port Engine Flushing System with Dual 20ft Hoses

Manufacturer

SeaMule

<h3>About SeaMule</h3><p>Based in Madeira Beach, Florida — the heart of Florida's Gulf Coast boating community — SeaMule is a marine solutions brand built around one guiding philosophy: life on the water should be effortless. From weekend anglers to seasoned offshore captains, SeaMule designs products that eliminate the tedious side of boat ownership so you can spend more time doing what you love.</p><h3>The Flushmaster: Redefining Outboard Engine Care</h3><p>SeaMule's flagship innovation is the <a href="/18624-seamule-engine-flushes-201925">Flushmaster Outboard Engine Flush System</a> — widely recognized as the world's first portable, automated outboard flushing device for single and multi-engine boats. Flushing outboard motors after saltwater use is one of the most critical maintenance habits a boat owner can develop, yet it has traditionally been a time-consuming, hands-on chore. The Flushmaster changes that equation entirely.</p><p>The device handles up to four outboard motors sequentially, flushing each one for a pre-programmed duration before automatically shutting off and blocking the water flow — no babysitting required. Powered by just three AA batteries, it connects easily to any standard freshwater source and cycles through every motor in order, ensuring thorough cleaning without the owner having to stay present.</p><ul><li><strong>IP67 waterproof certified</strong> — built to withstand harsh marine environments, including rain, spray, and accidental submersion</li><li><strong>Compatible with four-stroke outboards</strong> across major brands including Mercury, Yamaha, Suzuki, and Honda</li><li><strong>Available in 2-outlet and 4-outlet configurations</strong> with multiple hose length options to fit a wide range of boat setups</li><li><strong>Auto shut-off</strong> once all motors are flushed, conserving water and freeing up your time</li><li><strong>Included 1-year warranty</strong> for peace of mind</li></ul><h3>The Complete Flush System</h3><p>SeaMule doesn't stop at the Flushmaster controller. The brand also offers Flush Port Quick Connects — purpose-built connectors that permanently replace OEM flush ports on Mercury, Yamaha, Suzuki, and Honda engines. Together, the Flushmaster and Quick Connects form a comprehensive <a href="/18624-seamule-engine-flushes-200369">outboard engine flush solution</a> that makes connecting hoses a one-handed, tool-free process. Additional Flush Hose Kits, a Housing Cradle, Portable Storage Bag, and a PVC Piling Plumbing Kit round out the ecosystem for boaters who want a fully integrated setup.</p><h3>Built for the Water, Designed for Convenience</h3><p>Every SeaMule product is engineered to hold up in the demanding marine environment — UV-resistant, weatherproof, and constructed from materials chosen for long-term durability on the water. The brand's commitment to sustainable, eco-conscious materials reflects an understanding that the boating community depends on healthy waterways. Whether you're docked at a marina, tied up at a piling, or back in the driveway after a long day offshore, SeaMule's solutions are designed to fit naturally into your post-trip routine.</p>

Part Number

SM-FM4020
07/13/2036 12:15 AM
Sale Price

$524.74

In Stock (6)

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Usually delivered within 2 days

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Product Details

The SeaMule FlushMaster is a portable, marine-grade device designed to automate the flushing process for up to four outboard motors. Powered by three AA batteries, this revolutionary system ensures thorough engine cleaning by flushing each motor sequentially before automatically shutting off. With just the push of a button, your motors are flushed one at a time, ensuring thorough cleaning and optimal engine performance.

Key Features:

  • IP67 waterproof certification ensures reliable performance in harsh marine conditions
  • Battery operated (3 AA batteries) for portable, convenient operation
  • Factory pre-programmed to flush each outlet for 15 minutes, fully customizable
  • Compatible with four-stroke outboards and flush ports
  • Automatically shuts off and blocks water flow when flushing is complete
  • Includes four 20-foot hoses for extended reach applications
  • Can be connected directly to a water spigot, attached to a garden hose, or hung on a piling
  • Marine-grade construction built to withstand saltwater environments

According to manufacturers, proper flushing should be done immediately after use while engines are still hot, for 15 minutes each. The FlushMaster automates this critical maintenance task, helping protect your warranty and keep your outboard motors in peak condition. Backed by a 1-year warranty and 30-day performance guarantee.

What's Included: FlushMaster 4-port control unit, four 20-foot flush hoses with fittings. Note: Flush Port Quick Connects sold separately for Mercury, Yamaha, Suzuki, and Honda outboards.

Products specifications

Description

4-Port with (2) 20 ft Hose Kits

Smooth

Great

Fast Service

All good.

Good price. Quick delivery

Great and trustworthy

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