Stabilus 491627 Gas Spring, bonnet

Stabilus 491627 Gas Spring – Bonnet

The Stabilus 491627 Gas Spring is a high‑performance bonnet lift‑spring engineered to provide reliable, smooth operation for automotive hoods. Designed with precision engineering and premium materials, this component delivers consistent force over its travel range, ensuring that the hood remains securely in place while also allowing effortless opening and closing.

Key Features & Technical Specifications

• Model Number: 491627 – universally recognized across European automotive parts catalogs.
• Force Rating: 125 N (Newtons) – calibrated to match the original equipment specifications for Citroën DS series hoods.
• Travel Length: 155 mm – provides a full range of motion from fully closed to fully open positions.
• Construction: Stainless steel housing with a sealed gas cylinder, ensuring corrosion resistance and long‑term durability even in harsh climates.
• Compatibility: Specifically engineered for the Citroën DS5 (2014–2015) and other DS models such as DS3, DS4, and DS6. The spring’s mounting geometry matches OEM bolt patterns, guaranteeing a seamless fit.
• Installation Type: Quick‑fit with standard mounting brackets; no special tools required beyond a torque wrench for final tightening.
• Maintenance: No lubrication needed due to the sealed gas system. Inspect annually for any signs of wear or leakage.

Design Philosophy & Engineering Excellence

The Stabilus 491627 is built on a foundation of rigorous testing and quality control. Each spring undergoes:

1. Static Load Testing: Verifies that the gas cylinder can sustain the specified force without deformation.
2. Dynamic Cycling: Simulates thousands of opening/closing cycles to ensure longevity.
3. Environmental Stress: Exposure to temperature extremes, humidity, and salt spray confirms resistance to corrosion and material fatigue.

This meticulous process guarantees that the spring will perform reliably for many years, matching or exceeding the original equipment performance.

Installation Guide (Step‑by‑Step)

1. Preparation: Remove the existing bonnet lift mechanism. Keep all mounting hardware intact.
2. Positioning: Align the new Stabilus spring with the OEM bolt holes on the hood frame and the vehicle chassis.
3. Secure Mounts: Tighten the mounting bolts to the manufacturer’s torque specification (typically 20 Nm). Use a calibrated torque wrench for accuracy.
4. Check Alignment: Ensure that the spring is centered and not tilted. Misalignment can cause uneven hood lift or premature wear.
5. Functional Test: Open and close the hood several times to confirm smooth operation. The hood should remain stable when fully open, without sagging.

Benefits of Choosing Stabilus 491627

• Reliability: Sealed gas system eliminates the need for regular maintenance and prevents leaks.
• Precision Fit: OEM-compatible dimensions guarantee a perfect match, reducing installation time and potential fitment issues.
• Durability: Stainless steel construction resists rust and corrosion, extending service life even in coastal or high‑humidity environments.
• Performance Consistency: Maintains the same lifting force throughout its travel, ensuring that the hood stays securely closed during driving.

Common Applications & Use Cases

The Stabilus 491627 is ideal for:

• Replacement of worn or damaged bonnet lift springs in Citroën DS series vehicles.
• Aftermarket upgrades where a more robust lifting mechanism is desired without altering the vehicle’s aesthetics.
• Restoration projects that aim to preserve original performance characteristics while ensuring safety and reliability.

Quality Assurance & Compliance

All Stabilus components, including the 491627 gas spring, comply with European automotive standards such as ISO/TS 16949. The product is manufactured in a controlled environment, with each unit inspected for dimensional accuracy, material integrity, and functional performance before shipment.

Frequently Asked Questions

Is the Stabilus 491627 compatible with all Citroën DS models?

It is specifically designed for the DS5 (2014–2015) and closely matches the mounting geometry of other DS series hoods. Always verify bolt patterns before purchase.

Can I install this spring myself?

Yes, with basic mechanical tools and a torque wrench. Follow the installation guide carefully to ensure proper fitment.

What is the expected lifespan of the spring?

Under normal driving conditions, the spring can last for many thousands of cycles—typically exceeding 10 000 opening/closing operations without degradation.

Conclusion

The Stabilus 491627 Gas Spring – Bonnet represents a blend of engineering precision, durable materials, and user‑friendly design. Whether you’re restoring an older Citroën DS or simply replacing a worn component, this spring delivers the performance and reliability expected from OEM parts while ensuring that your vehicle’s hood operates safely and smoothly for years to come.