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Attwood Marine SL31-30-5 Gas Spring 7.5" Extended 5.25" Compressed 30 lbs

Manufacturer

Attwood Marine

<h3>About Attwood Marine</h3><p><strong>Attwood Marine</strong> has been a cornerstone of the boating world for over a century. Founded with a commitment to quality engineering and practical design, Attwood grew from manufacturing underwater hardware and on-deck fittings into one of the most recognized names across every segment of the marine accessories market. Today, the brand operates as part of the Navico Group by Brunswick — a global family of market-leading marine companies — yet it has never lost the focused, boater-first philosophy that built its reputation.</p><p>What sets Attwood apart is their end-to-end approach: they design, manufacture, test, and distribute their own products rather than simply resourcing components from third parties. Every product in their catalog is tested against the highest U.S. Coast Guard (USCG), American Boat and Yacht Council (ABYC), and CE standards, giving boaters and OEM boat builders alike the confidence that Attwood parts will perform when it matters most. Corrosion-resistant materials — including 304 and 316 stainless steel, chrome-plated zinc, and marine-grade synthetics — are used throughout the lineup to ensure durability in both freshwater and saltwater environments.</p><p>Attwood is also a leading OEM supplier, meaning you'll find their components pre-installed on boats straight from the factory. That pedigree speaks volumes: when boat manufacturers trust a brand to equip new vessels, that's a strong vote of confidence for the aftermarket buyer as well.</p><h3>Attwood Marine Product Categories</h3><p>Attwood's catalog spans a remarkably broad range of marine needs. On the docking and mooring side, their <a href="/7239-attwood-marine-fenders-201953">boat fenders</a> provide reliable hull protection against docks, pilings, and other vessels — an essential piece of gear for any boat owner. For on-water comfort and cockpit organization, Attwood's <a href="/7239-attwood-marine-seat-pedestal-packages-202496">seat &amp; pedestal packages</a> deliver complete seating system solutions backed by years of ergonomic engineering, while their <a href="/7239-attwood-marine-seat-clamp-mounts-202497">seat clamp mounts</a> and <a href="/7239-attwood-marine-seat-clamp-mounts-200927">mounting hardware</a> make swapping or positioning seats quick and secure. Rounding out the seating ecosystem, Attwood's broad selection of <a href="/7239-attwood-marine-seating-table-parts-accessories-202501">seating &amp; table parts and accessories</a> keeps every swivel, slide, and fitting performing at its best season after season.</p><p>Beyond seating and docking, Attwood is well known for its bilge and aerator pumps (including the iconic Sahara Mk2 and Tsunami series), navigation lighting, fuel systems, rod holders, and trailering accessories — making it a one-stop resource for outfitting or refreshing virtually any powerboat, fishing boat, or recreational vessel.</p><h3>Why Boaters Trust Attwood</h3><ul><li><strong>100+ years of marine expertise</strong> — a track record that few brands can match</li><li><strong>USCG, ABYC &amp; CE certified</strong> products built to rigorous safety and performance standards</li><li><strong>OEM-preferred supplier</strong> to leading boat manufacturers worldwide</li><li><strong>Corrosion-resistant construction</strong> engineered for saltwater and freshwater environments</li><li><strong>Full design-to-distribution control</strong> ensuring consistent quality across every product</li></ul>

Part Number

SL31-30-5
06/08/2036 4:15 AM
Sale Price

$16.57

In Stock (6)

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Usually delivered within 2 days

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Product Details

The Attwood Marine SL31-30-5 is a high-quality replacement gas spring designed specifically for marine applications. This gas spring extends to 7.5 inches and compresses to 5.25 inches, providing 30 pounds of lift force for hatches, storage compartments, and other marine access points.

Key Features:

  • Extends to 7.5 inches, compresses to 5.25 inches with 30 lbs force
  • Filled with biodegradable, water-safe grade oil (WGK) for environmental protection
  • Passes rigorous ASTM B117 salt spray corrosion testing
  • Tested to 30,000 cycle lifecycle for long-lasting durability
  • Marine-grade construction resistant to harsh saltwater environments
  • Direct replacement for worn or damaged gas springs on boats and marine equipment

This gas spring represents the marine industry's most environmentally responsible choice, combining reliable performance with eco-friendly engineering. Ideal for boat builders, marine repair shops, and boat owners looking to replace failing hatch or compartment springs.

Products specifications

Approximate Stroke

2.25"

Compressed Measurement

5.25"

Cylinder Size

18mm

Description

8 x 18 - 8MM ROD x 18MM CYLINDER

Diameter: Rod

8mm

part easy to find and the process was good

so easy. Let's see the quality of the product

Shipping is too expensive.

Autoplicity had the best price that I could find. The product was drop shipped from the factory and the time estimate that Autoplicity said was correct.

They shipped out next day from when I ordered my item. Cheapest price on my item but I havent recieved it to see the shipping time or condition.

Received my package today. Shipping was fast and it was about the best price I could find for my Cam. I'll buy from them again.

Quick ordering process.

Wonderful....purchased a set of weight load scales and couldn't find them any cheaper that with Autoplicity....and we received them very timely. Ordered on 1/5 and received on 1/9.

Quick and easy, great checkout w/Amazon.

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