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Attwood Marine 4140-4 Waterbuster Cordless Bilge Pump

Manufacturer

Attwood Marine

<h3>About Attwood Marine</h3><p><strong>Attwood Marine</strong> has been a cornerstone of the boating world for well over a century. <a href="/7239-attwood-marine">Founded in 1893</a>, the company began by manufacturing precision underwater hardware and on-deck fittings — rudders, struts, cleats, and lights — and quickly earned a reputation for fine engineering and enduring quality. After World War I, the brand's craftsmanship was so well regarded that legendary boatbuilder Chris-Craft turned to Attwood for brass fittings on their iconic pleasure boats.</p><p>Today, Attwood operates as part of the Navico Group by Brunswick, a global family of industry-leading marine companies, yet it has never lost the boater-first focus that built its name. What distinguishes Attwood from many competitors is their end-to-end philosophy: they design, manufacture, test, and distribute their own products rather than simply sourcing components from third parties. Every item in the Attwood catalog is rigorously tested to meet or exceed U.S. Coast Guard (USCG), American Boat and Yacht Council (ABYC), and CE standards — giving boaters and OEM manufacturers alike the confidence to rely on Attwood gear season after season.</p><h3>A Complete Marine Accessories Ecosystem</h3><p>Attwood's catalog spans an impressively broad range of marine needs. On the comfort and ergonomics side, their <a href="/7239-attwood-marine-seat-pedestal-packages-200926">Seat &amp; Pedestal Packages</a> deliver complete, ready-to-install seating system solutions backed by decades of engineering refinement. For boaters who prefer to build or customize their setup, Attwood's Fixed Mount Pedestals provide a sturdy, reliable foundation engineered for lasting stability on the water.</p><p>When it comes to protecting your hull at the dock, Attwood's <a href="/7239-attwood-marine-fenders-200396">Fenders</a> offer dependable, marine-grade cushioning against docks, pilings, and other vessels — an often-overlooked but essential piece of gear for every boat owner. Getting on and off the boat safely is equally important, and Attwood's <a href="/200179-boarding-ladders-attwood-marine-7239">Boarding Ladders</a> are designed with heavy-duty construction, rated hardware, and user-friendly features to make every entry and exit as secure as possible.</p><p>Beyond these categories, Attwood is also widely recognized for its bilge and aerator pumps, navigation lighting, fuel systems, rod holders, and trailering accessories — making the brand a true one-stop resource for outfitting or refreshing virtually any powerboat, fishing boat, or recreational vessel.</p><h3>Why Boaters Choose Attwood</h3><ul style="list-style:disc"><li><strong>100+ Years of Proven Experience</strong> — A heritage of quality engineering stretching back to 1893.</li><li><strong>Multi-Standard Compliance</strong> — Products tested to USCG, ABYC, and CE standards for safety and performance.</li><li><strong>OEM-Trusted</strong> — A leading supplier to major boat manufacturers across a wide range of product categories.</li><li><strong>Corrosion-Resistant Materials</strong> — Extensive use of 304 and 316 stainless steel, chrome-plated zinc, and marine-grade synthetics built for harsh saltwater environments.</li><li><strong>In-House Engineering</strong> — Advanced prototyping, simulation, and real-world testing ensure reliability before any product reaches the water.</li></ul>

Part Number

4140-4
09/12/2036 11:20 AM
Sale Price

$46.13

In Stock (7)

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Usually delivered within 2 days

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Fitment guaranteed

Fitment guaranteed

Product Details

The Attwood Marine Waterbuster Cordless Pump is a versatile submersible pump designed to remove unwanted water from boats, pool covers, aquariums, and sump pits. This portable pump operates without the need for electrical outlets, making it ideal for use in locations where AC power is unavailable or unsafe.

Key Features:

  • Battery-powered operation using three alkaline D-cell batteries (not included)
  • Runs continuously for up to 5 hours on fresh batteries
  • Lifts water up to 40 inches vertically
  • Pumps approximately 360 gallons per hour at maximum efficiency
  • Fully submersible design with automatic float switch activation
  • Compact and portable for easy storage and transport
  • No electrical cord needed—safe for wet environments

Perfect for emergency bilge pumping, draining pool covers after rain, emptying window wells, or removing water from small flooded areas. The automatic float switch turns the pump on when water reaches a certain level and shuts off when the water is removed, preventing dry running and extending battery life.

Products specifications

Amperage

3 D Batteries

Capacity

200 Gallons per Hour

Diameter

5/8"

Warranty Details

One Year Limited

very nice web site and easy to order with good pictures, quick delivery overall had a great experience with Autoplicity

Enjoyed convenient checkout process!!!

great service

Very detailed list of part fitment. Radiator fits and functions very well. BUT, and this may be no fault of Autoplicity, I received the radiator w/holes punched in the box and some of the cooling fins bent. It wasn't bad enough to warrant a return, thoug

Best price on the web. Fast shipping. Good selection. Had everything I needed. I will shop here for my next order!

Fast &amp; easy. The way it should be.

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Super fast shipping and great price..

Easy ordering

Great prices

Hope the parts fit

Easy to order

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