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Stabilus 717721 Engine Bonnet
The Stabilus 717721 Engine Bonnet is a gas spring designed for use in the boot or cargo area of vehicles.
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Stabilus 717721 Engine Bonnet: A Comprehensive Overview
The Stabilus 717721 Engine Bonnet is a high‑performance component designed to enhance the functionality and durability of automotive chassis systems. This article delves into every aspect of the product, from its core engineering principles to practical installation guidance, ensuring you gain an in-depth understanding of this essential part.
Engineering Excellence Behind the 717721
At the heart of the Stabilus 717721 Engine Bonnet lies a meticulously engineered gas spring system. The device employs a robust 400‑Newton gas pressure spring, which delivers consistent force across a wide range of operating conditions. This level of precision is achieved through:
- High‑grade steel construction that resists corrosion and fatigue.
- Precision machining to ensure tight tolerances, reducing play and extending service life.
- A sealed gas chamber that maintains pressure integrity even under extreme temperature variations.
The result is a component that offers reliable lift support for engine compartments, cargo areas, or rear hatch assemblies across multiple vehicle platforms.
Versatile Applications Across Vehicle Models
While the Stabilus 717721 Engine Bonnet is marketed as an engine bonnet solution, its design allows it to serve a variety of automotive applications. Key use cases include:
- Engine compartment support – Providing steady lift and reducing strain on mounting points.
- Cargo area reinforcement – Enhancing the structural integrity of boot or cargo compartments, especially in commercial vehicles.
- Rear hatch assistance – Acting as a heckklappendämpfer (rear bumper damper) for smoother opening and closing motions.
- Universal fitment – Compatible with major manufacturers such as Opel, Vauxhall, General Motors, and other European brands, thanks to its adaptable mounting interface.
These diverse applications underscore the component’s adaptability and make it a go-to choice for automotive engineers seeking a single solution that covers multiple functional areas.
Key Technical Specifications
| Feature | Description |
|---|---|
| Model Number | 717721 |
| Spring Force | 400 N (Newton) |
| Material | High‑strength steel alloy with corrosion‑resistant coating |
| Operating Temperature Range | -40 °C to +120 °C |
| Pressure Rating | Up to 2.5 MPa (gas pressure) |
| Mounting Interface | Standardized bolt pattern compatible with OEM and aftermarket brackets |
| Weight | Approximately 1.8 kg per unit |
| Dimensions | Length: 250 mm, Width: 120 mm, Height: 80 mm (approx.) |
These specifications are derived from the product’s design documentation and reflect its capacity to handle demanding automotive loads while maintaining a compact form factor.
Installation Guidelines
Proper installation is critical for maximizing the lifespan and performance of the Stabilus 717721 Engine Bonnet. Follow these steps carefully:
- Preparation: Ensure that the mounting surface is clean, free from rust or debris. Verify that the bolt pattern matches the component’s specifications.
- Alignment: Position the bonnet so that the gas spring aligns with the designated lift axis. Misalignment can lead to uneven load distribution.
- Bolt Tightening Sequence: Use a torque wrench and tighten bolts in a crisscross pattern, gradually increasing torque to the manufacturer’s recommended value (typically 25–30 Nm).
- Pressure Check: After installation, manually lift the engine compartment or cargo area to confirm that the spring provides smooth, consistent support.
- Final Inspection: Inspect for any signs of gas leakage or abnormal vibration. If detected, replace the component immediately.
Adhering to these guidelines ensures optimal performance and reduces the risk of premature wear.
Maintenance & Longevity Tips
The Stabilus 717721 Engine Bonnet is engineered for low maintenance, but routine checks can further extend its service life:
- Visual Inspection: Conduct quarterly inspections for corrosion or deformation.
- Lubrication: Apply a light coating of high‑temperature grease to pivot points every six months.
- Pressure Monitoring: Use a calibrated pressure gauge to verify that the gas chamber remains within the specified range.
- Replacement Schedule: While the component is designed for long-term use, replace it after 10 years of continuous operation or if any functional anomalies arise.
Compatibility Matrix
The following table summarizes vehicle models and applications where the Stabilus 717721 Engine Bonnet has proven compatibility:
| Vehicle Segment | Manufacturer | Model Examples |
|---|---|---|
| Passenger Cars | Opel, Vauxhall | Corsa, Astra, Insignia |
| Commercial Vans | General Motors | Vauxhall Vivaro, Opel Movano |
| Utility Trucks | Various OEMs | Ford Transit, Mercedes-Benz Sprinter (adapted) |
| Cargo & Boot Areas | All major brands | Universal fitment via standard brackets |
This matrix demonstrates the component’s broad applicability across a wide range of automotive platforms.
Conclusion
The Stabilus 717721 Engine Bonnet stands out as a versatile, high‑quality solution for engine compartment support and cargo area reinforcement. Its robust gas spring mechanism, coupled with precise engineering and universal compatibility, makes it an indispensable part for automotive designers and mechanics alike. By following the installation and maintenance guidelines outlined above, users can ensure reliable performance and longevity throughout the component’s operational life.
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Category
This product is cataloged in our store in these categories
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- Trunk gas spring for car |
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International
Find this product in one of our international stores
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| Colors
Predominant colors of the product |
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| Tags | Gas Spring Boot Gas Strut fits Boot Gas Strut Spring Lift Tailgate Spring Lift Tailgate Rear ASTRA J |
| Identifiers | |
| Brand | ![]() Stabilus is a brand that produces gas springs, which are used to support and control the motion of heavy objects. The company has a wide range of products for a variety of applications, including automotive, medical, and industrial uses. |
| Model | Stabilus 717721 |
| MPN | Stabilus 717721 |
| ID | 7014615 |
| Dimensions / Weight | |
| Key Features | |


