Sea-Dog 321424 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 gas filled lift spring (321424) is designed to help support and ease the opening of marine hatches and deck access ports. It features Sea-Dog’s multi-lobe seal design and a corrosion-resistant build for long service life in demanding conditions.
Key Features
- Gas filled lift spring for controlled hatch lift and support
- Patented multi-lobe seal design for improved service life and performance
- Heavy gauge steel body
- Hard chromium plated shafts
- Bronze bushings
- Polymer end fittings
Intended Use
- Marine deck hatches and access ports
- Boat hatch lids and covers requiring assisted lift/support
- General marine gas-spring hatch hardware applications (mounting dependent)
Product Details
- Sea-Dog gas filled lift spring: 321424
- Variant/SKU: 354-3214241
- Category: Hatches/Deck Plates
- Barcode/UPC (variant data): 35514321457 (not shown in description)
- Weight (variant data): 117 grams
Parts Desk Insights
Best Use Case: Best suited for replacing a worn gas spring used to assist hatch opening on marine deck plates/access ports. Verify the hatch lift length and mounting orientation on your hatch to match the force and travel requirements of the spring.
Common Issues: If the hatch feels heavy or won’t hold open, the lift spring may be losing pressure. Also check for binding at the hatch hinges/lids and inspect mounting fasteners and mating surfaces—misalignment can reduce gas spring performance or accelerate wear.
Related Products & Accessories
- Marine Deck Hatches & Access Ports - Browse the collection for compatible hatch hardware, including related deck-plate and access-port components.
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.