Sea-Dog 321492 Gas Filled Lift Spring
Free returns on all eligible orders
You have 30 days to request a return. All sale items are final sale.
Sea-Dog 321492 Gas Filled Lift Spring is a marine hatch/deck plate gas spring designed to provide controlled lift assistance with Sea-Dog’s unique multi-lobe seal for lasting service life.
Key Features
- Gas-filled lift spring with a unique multi-lobe seal for lasting service life
- Heavy gauge steel body
- Hard chromium plated shafts
- Bronze bushings
- Polymer end fittings
- Built for use with marine deck hatches and similar lift applications
Intended Use
- Marine deck hatches and access ports
- Deck plate lift-assist applications
- Cabinet or compartment lift support in marine environments
Product Details
- Product name: Sea-Dog 321492 Gas Filled Lift Spring
- SKU (variant): 354-3214921
- Model/part number: 321492-1
- Gas spring type: Gas filled lift spring (hatch/deck plate lift assistance)
- Force: 120 lb
- Extended length: 20"
- Compressed length: 12"
- Stroke/guide dimension listing includes 8" (as listed in catalog/tech sheet data)
- Seal feature: Unique multi-lobe seal
- Materials/construction: Heavy gauge steel body; hard chromium plated shafts; bronze bushings; polymer end fittings
- Quantity/pack count: 1 ea (as listed in manufacturer catalog data)
Parts Desk Insights
Best Use Case: Use for hatch and deck plate lift assistance where you want smooth, consistent support and long service life from a gas spring design.
Common Issues: If the hatch feels uneven or won’t hold position, recheck alignment of the spring’s mounting points and inspect related mounting hardware and bushings for wear or incorrect seating. Also verify the spring length/force matches the hatch weight and travel needed.
Related Products & Accessories
- Browse Marine Deck Hatches & Access Ports - Find compatible hatch hardware and related accessories for deck and access applications.
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 1-3 business days.
Special-order items: timeline confirmed after order.
Returns & warranty
Returns & Satisfaction Guarantee
We stand firmly behind the quality of every product we sell. Your confidence matters to us — and we back it with a straightforward 30-Day Satisfaction Guarantee.
If you are not fully satisfied, you may request a return within 30 days of delivery. All returns must receive pre-approval prior to being sent back. Unauthorized returns will not be accepted.
To qualify for a return:
Item must be in new, unused condition
Product must be in its original packaging
All parts, components, hardware, manuals, and accessories must be included
Packaging must be undamaged and suitable for resale
Important:
Electronics are strictly inspected. No returns on open-box electronics. Exceptions may apply only with prior written approval. Any electronic unit that has been installed, powered, activated, or altered may not be eligible for return.
We are serious about product integrity — and equally serious about taking care of our customers. If there is ever a product issue, contact us immediately so we can make it right.
For return authorization, please contact our support team before shipping anything back.