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Attwood Marine 1749-4 Turbo 4000 Series II Water-Resistant In-Line Bilge Blower

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 <a href="/200999-pedestals-fixed-mount-attwood-marine-7239">Fixed Mount Pedestals</a> 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

1749-4
09/17/2036 12:25 AM
Sale Price

$31.43

In Stock (10+)

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Usually delivered within 2 days

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No Hassle Returns

Live-in-stock inventory

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Fitment guaranteed

Fitment guaranteed

Product Details

The Attwood Marine 1749-4 Turbo 4000 Series II represents the next generation in marine ventilation technology, engineered using aerospace design principles to deliver superior performance with reduced noise levels. This water-resistant in-line blower provides powerful, reliable ventilation for engine compartments, bilges, galleys, and heads where moisture is present.

Advanced Performance:

  • 230 CFM airflow capacity at 13.6 volts; 220 CFM at 12 volts
  • Five-blade axial-flow fan designed with optimized sweep and pitch for maximum airflow efficiency
  • Up to 25% greater airflow than older-style in-line blowers
  • Up to 40% lower amperage draw (3.5-4.4 amps) compared to competitive models
  • Significantly reduced noise and vibration through advanced blade engineering

Durable Construction:

  • Re-engineered housing with stiffening ribs resists deformation during installation
  • Prevents blade-to-housing interference for reliable operation
  • Nickel-plated motor can for superior corrosion resistance
  • 16-gauge tinned and caulked copper wire leads for long-lasting electrical connections
  • Marine ignition protected and CE certified

Installation Features:

  • Patented in-line design for 4-inch interior diameter ventilation hose
  • Built-in mounting feet allow easy vertical or horizontal installation in confined spaces
  • Pre-drilled mounting holes for #10 fasteners
  • Includes 2 tie straps for secure hose attachment
  • Compact dimensions: 5-1/32"L x 6-1/16"W x 4-1/2"H

This 12-volt water-resistant blower combines compact size with powerful output, making it ideal for marine applications requiring dependable ventilation in wet environments. Replaces Attwood part number 201167.

Products specifications

Description

Water Resistant, White

Finish

White

For Use With

4" ventilation hose

Hose

4"

Product Type

water resistant 4000 series

This was a great seller, I chose them because they had the lowest price with incredibly low shipping for the item I purchased. It arrived on time and in great shape thanks to UPS. The product was the one that was described and it fit perfectly (exhaust). I will definitely be checking back for great deals and service. 10 out of 10!!!

Good

Quick and easy. I would like a little more confirmation before the order was actually sent. Also, an estimated ship time would be nice. But other than that this was very trouble free. Thanks

Great price

Quick and easy and the best prices around the net thanks. Very Happy.

Definitely the lowest price! Quick shipping, and great communication and follow-through.

Great price on name brand parts. Quick shipping. Will use again for my next order of parts.

I was searching for spark plugs and came across their web site and was surprised to see they had the cheapest price on the plugs I needed.

Got my order fast and everything was correct. Thanks for the good deal, just need some rear ones next.

Great prices and great communication!!

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