Stabilus 4B-979904 Hatch Lift Support

Overview of Stabilus Gas Spring for Subaru Impreza

The Stabilus gas spring, part number 4B-979904, is engineered for reliable performance in Subaru Impreza models. Designed with precise dimensions and force specifications, this gas spring ensures smooth operation and durability.

• Compressed length: 331.5 mm (13.051 inches)
• Extended length: 560 mm (22.047 inches)
• Rod diameter: 8 mm (0.315 inches)
• Tube diameter: 18 mm
• Force: 380 N (85 lbs)
• Rod connection type: Plastic socket
• Includes hardware kit 553327

Technical Specifications and Features

The Stabilus 4B-979904 gas spring features a rod diameter of 8 mm and a tube diameter of 18 mm, providing a balanced strength-to-weight ratio suitable for automotive applications. Its compressed length measures 331.5 mm, extending to 560 mm when fully deployed. The gas spring delivers a force of 380 Newtons (85 pounds), ensuring consistent support and controlled motion. The rod connection utilizes a plastic socket for secure attachment, and the included hardware kit 553327 facilitates installation.

Application and Compatibility

This gas spring is specifically compatible with Subaru Impreza vehicles, making it a suitable replacement part for OEM gas springs in this model. It is not designed for agricultural equipment, heavy trucks, motorcycles, or marine applications. The part number 4B-979904 corresponds directly to Subaru Impreza fitment, ensuring proper function and fit.

• Supports smooth hood or trunk lift and hold functions
• Replaces worn or damaged gas springs in Subaru Impreza
• Helps maintain proper tension and positioning of vehicle panels
• Prevents sudden closure or slamming of hoods or trunks
• Improves safety and ease of access to engine or cargo areas

Installation Notes and Tips

When installing the Stabilus 4B-979904 gas spring on a Subaru Impreza, ensure the plastic socket rod connection is properly seated to avoid premature wear. Use the included hardware kit 553327 for secure mounting. It is recommended to replace gas springs in pairs to maintain balanced support. Avoid forcing the gas spring beyond its extended or compressed lengths to prevent damage.

Quality Assurance and Warranty

Stabilus gas springs are manufactured to meet strict quality standards for durability and performance. While specific warranty details for part number 4B-979904 are not provided here, Stabilus products typically come with manufacturer-backed warranties covering defects in materials and workmanship. For detailed warranty information, consult Stabilus or authorized Subaru parts distributors.