Stabilus 051387 Gas Spring, bonnet

Stabilus 051387 Gas Spring, Bonnet

The Stabilus 051387 Gas Spring, Bonnet is a high‑performance hydraulic component designed to provide smooth and reliable operation for the engine hood of select BMW models. This gas spring delivers a consistent force curve, ensuring that the bonnet lifts effortlessly while maintaining secure closure during normal driving conditions.

Key Technical Features

• Force Rating: 770 Newtons – engineered to match the original specifications for BMW Z3, E36, and related models.
• Length: 345 mm – compatible with standard bonnet lift mechanisms.
• Diameter: 116 mm – fits within the existing mounting brackets without modification.
• Material Composition: High‑strength steel housing combined with a durable polymer seal to resist corrosion and temperature extremes.
• Pressure Range: Designed for optimal performance at atmospheric pressure variations typical in automotive environments.

Design & Construction

The gas spring incorporates a sealed piston system that contains pressurized nitrogen. This design provides a smooth, progressive lift force that reduces the effort required to open the bonnet while preventing sudden drops when closing. The housing is engineered with reinforced welds and a corrosion‑resistant coating, ensuring longevity even in harsh climates.

Installation Compatibility

The Stabilus 051387 is specifically calibrated for the following BMW models:

• Z3 Roadster (E36)
• Z3 Coupe (E36)
• E36 chassis with M52B28, M54B22, M43B18, and M44B19 engines
• Other compatible BMW vehicles that use the 51238397401 bonnet lift system.

Installation requires no additional hardware beyond the standard mounting brackets. The spring is available in both left‑handed and right‑handed configurations to match the vehicle’s side of operation.

Performance Benefits

• Reduced Effort: The gas spring’s calibrated force curve means drivers can open the bonnet with minimal physical exertion, even when the hood is fully closed.
• Improved Safety: By maintaining a controlled descent, the spring prevents accidental slamming of the bonnet, protecting both occupants and vehicle components.
• Durability: The robust construction resists wear from repeated use, ensuring consistent performance over thousands of lift cycles.
• Weather Resistance: Corrosion‑resistant materials safeguard against moisture, salt, and temperature fluctuations common in automotive environments.

Maintenance & Longevity

Routine inspection is recommended to verify that the seal remains intact and that no external damage has occurred. The gas spring can be re‑charged with nitrogen if a drop in lift force is observed, extending its service life without replacement.

Why Choose Stabilus 051387?

The Stabilus 051387 Gas Spring, Bonnet offers an OEM‑grade solution that blends reliability with ease of installation. Its precise force specifications match the original design intent for BMW’s iconic models, ensuring that performance and safety standards are upheld.

Conclusion

For owners seeking a dependable, high‑quality gas spring to replace or upgrade their bonnet lift system, the Stabilus 051387 delivers proven engineering, robust construction, and seamless compatibility with BMW’s classic lineup. Its design guarantees smooth operation, enhanced safety, and long‑term durability—making it an excellent choice for both everyday use and enthusiast maintenance projects.