My Account
Shopping Cart

Attwood Marine 66545-3 Thru-Hull Fitting 1-1/2 Inch Stainless Steel

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

66545-3
09/17/2036 1:35 AM
Sale Price

$46.35

1 left at this price

delivery box

Usually delivered within 2 days

Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Attwood Marine 66545-3 is a premium thru-hull fitting designed for above-waterline marine applications requiring a 1-1/2 inch hose connection. This short-style fitting provides a durable, corrosion-resistant solution for bilge pump outlets, livewell systems, and other through-deck or through-hull installations.

Key Features:

  • Cast from marine-grade 316 stainless steel for maximum corrosion resistance in harsh saltwater environments
  • Built-in channel under the flange designed to hold a bead of sealant for watertight installation
  • Wrench flats or end notch for easy installation and secure tightening
  • 1-1/2 inch diameter accommodates standard marine hose sizes
  • Short profile design ideal for thin-wall applications
  • Engineered for above-waterline installations only

This professional-grade thru-hull fitting delivers reliable performance and long-lasting durability for recreational and commercial marine vessels. The 316 stainless steel construction resists pitting and crevice corrosion better than lesser grades, making it the ideal choice for demanding marine environments.

Products specifications

Flange

3"

Hose

1-1/2"

Hose Size

1-1/2" I.D.

Install Hole Saw Size

2"

Length

3-1/8"

By far the fastest shipping and best prices on the web. Ordered it one day and it showed literally the next. Will definitely be buying from again!

I would like to have used Paypal (not the credit card) but could not.

great, and quick thanks to the amazon login option.

Quick and easy

Easy to search and find parts.

Well, we certainly hope the part that arrives (promptly)and will work well. And, the part arrived very promptly and worked perfectly.

Pretty darn easy

Cheapest

Item was shipped out the next day and arrived fast within 3 days. Lowest price available and will gladly shop here again soon.

Same product as others with better price. Simple and easy to buy products on website and good shipping.

Share icon
Return Policy
Returns are easy at Boatplicity

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy