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Attwood Marine SL34-120-5 Gas Spring 20" Extended 12" Compressed 120 lbs

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

SL34-120-5
09/14/2036 1:04 PM
Sale Price

$16.57

In Stock (10+)

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Usually delivered within 2 days

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Fitment guaranteed

Fitment guaranteed

Product Details

The Attwood Marine SL34-120-5 is a high-performance gas spring designed for marine applications, extending to 20 inches and compressing to 12 inches with a force rating of 120 pounds. This gas spring provides reliable, smooth operation for hatches, storage compartments, engine covers, and other marine access points.

Key Features:

  • Extended length: 20 inches, compressed length: 12 inches
  • 120-pound force rating for secure support
  • Filled with biodegradable, water-safe grade oil (WGK) for environmental protection
  • Passes ASTM B117 salt spray corrosion testing for marine durability
  • Tested to 30,000 cycle lifecycle for long-lasting performance
  • Corrosion-resistant construction for harsh saltwater environments

Attwood's environmentally conscious gas springs are specifically engineered for marine use, making them ideal replacements for boat hatches, cooler lids, and storage compartments. The biodegradable oil ensures no hazardous contamination if the spring fails in water, while the rigorous salt spray and lifecycle testing guarantee reliability in demanding marine conditions.

Products specifications

Approximate Stroke

8"

Compressed Measurement

12"

Cylinder Size

18mm

Diameter: Rod

8mm

Extended

20"

Great tires

Helmet is as described and fits fine, however, it's so huge I cannot use it in the car as intended. Some reviews call it "Marvin the Martian" looking. This is generous. It's more like Marvin the Martian on steroids. Will need to return and look locally for a helmet.

Very satisfied.

Nice service

Very good

Autoplicity had the part I needed. They had the best price I found. Shipping was a little slow. Overall I am very satisfied with the transaction and will be buying from them in the future.

All went well!

Order # 26695 I ordered an EGT and a gauge pod. It showed up at my house 4 days later exactly as I had ordered it. The Prices are unbeatable!

So far its been fast and easy. I only hope the box comes undamaged. It looks like a nice box. Arrived with a little cardboard damage from UPS. The toolbox had some minor dents that I successfully pounded out. Was no fault of yours. Thanks.

Very nice people very considerate and helpful plus the price was nice

So far great!

Great website, fast and easy!

just want to make sure I got the right ones.

Best prices I could find!

Extremely fast shipping. I received my parts less than 48 hours after ordering! I will definitely keep Autoplicity in my favorites!

Excellent transaction and price

Great prices. Saved about $50. Arrived in just a few days.<br>Will be ordering again soon

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

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