Sea-Dog Gas Filled Lift Spring, 40 lb Force, 20 Inch Extended Length, Part 321484-1

The Sea-Dog Gas Filled Lift Spring (part number 321484-1) is a 40 lb force gas strut built to marine OE standards for supporting hatches, doors, and lids on boats and RVs. It extends to 20 inches with a 12 inch compressed length and an 8-1/8 inch stroke, giving it the travel needed to hold engine or access hatches, tool boxes, canopies, seating, and RV doors securely open without manual props.

Construction features a hard chromium plated shaft for corrosion resistance, bronze bushings for smooth, long-lasting extension and retraction, and polymer end fittings. The unique multi-lobe seal design offers superior service life and performance compared to standard gas struts. Each end fitting accepts a 10 mm ball stud, with a 15 mm ball socket diameter and 6 mm rod diameter. This lift spring is rated for both marine and RV use and is backed by a 2-year warranty.

Specifications

• Brand: Sea-Dog
• Manufacturer Part Number: 321484-1
• Force Rating: 40 lb
• Extended Length: 20 inches
• Compressed Length: 12 inches
• Stroke Length: 8-1/8 inches
• Ball Socket Diameter: 15 mm
• Rod Diameter: 6 mm
• Ball Stud Fitment: Accepts 10 mm ball
• Material: Chromium plated steel shaft, bronze bushings, polymer end fittings
• Weight: 0.44 pounds
• Warranty: 2-year warranty
• Applications: Marine, RV
• Quantity: 1 each
• UPC: 035514321945

Fitment

Rated for marine and RV applications, including engine or access hatches, doors, tool boxes, golf carts, canopies, seating, RV doors, furniture, truck caps, and utility boxes.

Frequently Asked Questions

What is the force rating of the Sea-Dog 321484-1 gas lift spring? The Sea-Dog 321484-1 is rated at 40 lb of force, the pressure it applies to hold a hatch, door, or lid open.

How long is this gas lift spring when extended and compressed? Part number 321484-1 measures 20 inches extended and 12 inches compressed, giving it an 8-1/8 inch stroke length.

What ball stud size does this Sea-Dog lift spring accept? It accepts a 10 mm ball stud, with a 15 mm ball socket diameter on the fitting and a 6 mm rod diameter.

Is the Sea-Dog 321484-1 suitable for RV applications, or is it marine only? Yes, this gas lift spring is rated for both marine and RV use, in addition to general applications like tool boxes and truck caps.

What materials is the Sea-Dog gas filled lift spring made from? It is built with a hard chromium plated steel shaft, bronze bushings, and polymer end fittings for corrosion resistance and smooth operation.

What is included when I order part 321484-1? Each order includes one Sea-Dog 321484-1 gas filled lift spring, sold individually as 1 each.

How much does the Sea-Dog 321484-1 lift spring weigh? This lift spring weighs 0.44 pounds.

What makes Sea-Dog gas filled lift springs different from standard gas struts? The 321484-1 uses a unique multi-lobe seal design that offers a longer service life and more consistent performance than standard gas struts.

What applications can this lift spring be used for besides boat hatches? Beyond marine and RV hatches and doors, the 321484-1 can be used on tool boxes, golf carts, canopies, seating, furniture, truck caps, and utility boxes.

Does the Sea-Dog 321484-1 come with a warranty? Yes, it is backed by a 2-year warranty.

Is the Sea-Dog 321484-1 manufactured to marine OE standards? Yes, this gas lift spring is manufactured to marine OE standards and has a long track record of use in marine and RV applications.