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Attwood Marine 99181 Sport/Diver Ladder Transom Mounting Extension Shim 2"

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

99181
09/16/2036 11:48 PM
Sale Price

$76.22

In Stock (10+)

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Usually delivered within 2 days

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Fitment guaranteed

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Product Details

The Attwood Marine / Garelick 99181 is a 2" transom mounting extension shim designed for use with Garelick Sport and Diver transom-mount boarding ladders. This shim bracket moves the ladder mounting surface 2" farther from the transom, providing additional clearance for feet and outboard motor trim — particularly useful on boats with vertical transoms.

Key Features:

  • Extends ladder mounting position 2" farther from the transom for improved foot clearance and trim room
  • Constructed from electropolished stainless steel for superior corrosion resistance in harsh marine environments
  • Bracket face dimensions: 2.75" W x 3.62" H
  • Overall depth (extension provided): 2"
  • Designed to work under Standard Transom Ladder Mounts (Garelick #99180), which are included with Garelick Sport/Diver ladders
  • Compatible with the face plate and 10-degree poly spacer (part #99180) included with the ladder
  • Especially recommended for boats with near-vertical transoms where standard mounting creates insufficient clearance

The Garelick 99181 transom extension shim is the correct accessory when your sport or diver ladder sits too close to the hull, obstructing foot placement or restricting motor trim. Simply install this shim between the transom and the standard ladder mount brackets to gain the needed standoff distance. Sold as a pair of shim brackets.

Quick and easy ordering, check out and fast shipping.

Arrived earlier than expected. Shipping was a little more but it was a small order so that happens.

Great ordering experience

I had good experience, received the product as expected, reasonably priced.

Had a technical question, which was answered quickly, accurately, and professionally.

Got the part I needed pretty quick. Smooth transaction.

Good price and fairly fast shipping.

Good product

Grate customer service

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