Stabilus 4B-959621 Lift-O-Mat Gas Spring Lift Support

The Stabilus 4B-959621 is a precision-engineered gas spring lift support from Stabilus's industry-leading Lift-O-Mat line. Designed as a direct OE-style replacement, this lift support delivers smooth, controlled motion for hoods, trunk lids, tailgates, hatches, and other hinged automotive panels.

Stabilus Lift-O-Mat lift supports utilize a dynamic damping system that allows continuous gas flow around the piston via a custom-tuned longitudinal groove pressed into the tube wall — eliminating the need for hydraulic oil while providing superior, application-specific motion control. The groove geometry is precisely engineered to gradually narrow toward the end of the stroke, producing a gentle, controlled stop with no bouncing or jarring.

Key Features:

• Lift-O-Mat dynamic damping technology for smooth, fluid opening motion
• No bouncing or jerking during open/close cycling
• Corrosion-resistant coatings tested to automotive standards
• Engineered to OE fit, form, and function specifications
• Consistent force delivery through extended service life
• Rust-resistant piston rod for long-term durability
• Tool-free installation — no special tools required
• Reliable performance in all weather conditions and mounting positions

Stabilus has been the global leader in gas spring technology since 1934 and was the first manufacturer in the world to produce gas springs as standard production equipment. The 4B-959621 upholds that legacy with a reliable, drop-in replacement lift support built to restore safe, effortless panel operation. For best results, replace lift supports in pairs.