Sea-Dog Gas Filled Lift Spring - 17" - 40#

The Sea-Dog Gas Filled Lift Spring – 17" – 40# is a marine-grade gas strut engineered for reliable operation across harsh saltwater, RV, and automotive environments. Built to OE marine standards, this 17-inch gas spring delivers consistent 40-pound lifting force, making it ideal for hatch covers, toolbox lids, and utility compartments that demand durability and consistent operation over extended service cycles.

The 40# rated force (measured in pounds) indicates the spring's load capacity and lifting assistance at full extension—a specification that directly impacts how easily a lid opens and closes under load. The 17-inch length suits compact to mid-size compartments where space is limited but support must remain robust. Sea-Dog's multi-lobe seal design provides superior resistance to corrosion and oxidation, a critical advantage in marine applications where salt spray and moisture accelerate conventional spring degradation. This gas spring maintains consistent performance across temperature fluctuations and maintains force output throughout its service life, avoiding the sag and inconsistency typical of older mechanical springs.

Marine operators, RV owners, and truck bed users rely on gas springs when compartment access must be smooth and repeatable—particularly in offshore settings where corrosion risk is highest. This replacement spring suits existing Sea-Dog installations and compatible OEM applications. The 2-year manufacturer warranty backs the product against defects, providing confidence in both the seal integrity and internal pressure chamber. For anyone upgrading tired mechanical springs or restoring original equipment, this gas spring restores the smooth, controlled operation that modern marine and utility equipment demands.