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SeaMule SM-FM4012 FlushMaster 4-Port Automated Outboard Flushing System with 12 ft 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-FM4012
06/01/2036 4:51 AM
Sale Price

$478.44

4 left at this price

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Usually delivered within 2 days

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Fitment guaranteed

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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, it ensures thorough engine cleaning by flushing each motor sequentially before automatically shutting off. This 4-outlet model includes four 12-foot hose kits, providing the reach needed for larger multi-engine setups.

Key Features:

  • IP67 waterproof certification built to withstand harsh marine conditions for reliable performance season after season
  • Runs on 3 AA batteries and pre-programmed to flush each outlet for 15 minutes, with customizable timing via +/- buttons
  • Constructed with waterproof, saltwater-resistant ABS, 316 marine-grade stainless steel internal components, and airtight rubber gaskets
  • Sequentially flushes each outboard, transitioning automatically between outlets, with audible completion alert and automatic shutoff
  • Compatible with four-stroke outboards and flush ports
  • Can be mounted to a dock piling for permanent placement, placed in optional housing cradle, or stored in a bag
  • Four 12-foot EPDM hoses included for extended reach in quad engine applications

According to manufacturers, proper flushing should be done immediately after use while engines are still hot for 15 minutes each, and this automated system helps keep your warranty valid and outboards in peak performance. Backed by a 1-year warranty and 30-day performance guarantee.

Products specifications

Description

4-Port with (2) 12 ft Hose Kits

Great

Parts were easy to find and available

Great

Good experience

First time buying anything eud rather rate after i receive my parts but the easy order experience an quick delivery dates had to give u a 4star

Very easy traction. Will be ordering again.

Very easy to return a mistakenly ordered item

It was easy to order and arrived on time

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