Lesjöfors 8017002 Bonnet

Lesjöfors 8017002 Bonnet Gas Spring

The Lesjöfors 8017002 Bonnet is a high‑performance gas spring designed specifically for automotive engine covers (bonnets). It delivers reliable lift, smooth operation, and long‑term durability in demanding vehicle environments. Whether you are restoring a classic car or upgrading a modern model, this component provides the essential support needed to keep your bonnet securely open during maintenance and inspection.

Key Technical Specifications

• Model: 8017002
• Manufacturer: Lesjöfors
• Type: Engine cover (bonnet) gas spring
• Load Capacity: Up to 120 kg (varies with length)
• Stroke Length: 140–200 mm (configurable)
• Operating Temperature Range: –40 °C to +120 °C
• Material: High‑strength alloy steel with corrosion‑resistant coating
• Seal Type: Dual O‑ring system for fluid containment and dust protection
• Mounting Options: Standard bolt pattern compatible with most OEM bonnet brackets

Design Features & Benefits

The Lesjöfors 8017002 incorporates several design elements that set it apart from generic aftermarket springs:

1. Precision‑Machined Cylinder: The internal bore is machined to tight tolerances, ensuring minimal friction and a consistent pressure curve throughout the stroke.
2. Dual O‑Ring Seal: Two high‑quality O‑rings seal the gas chamber, preventing leaks and protecting against moisture ingress that could compromise performance.
3. Corrosion‑Resistant Finish: A specialized coating resists rust in humid climates and under exposure to road salts, extending service life.
4. Modular Stroke Lengths: The spring can be configured with different stroke lengths to match the specific bonnet geometry of a wide range of vehicles.
5. Low Maintenance: Once installed, the spring requires no lubrication or periodic servicing, reducing long‑term upkeep costs.

Compatibility Overview

The Lesjöfors 8017002 is engineered to fit a broad spectrum of vehicles. Below are representative models and brands where this gas spring has proven compatibility:

• Dacia Sandero (2008‑present) – Engine cover support for both front and rear bonnet panels.
• Dacia Duster II – Provides reliable lift for the front bonnet during maintenance.
• Various European compact cars – Many OEMs use a similar mounting pattern, making this spring a drop‑in replacement.
• Classic and vintage models – The robust construction is ideal for restoring older vehicles that require durable bonnet support.

Because the Lesjöfors 8017002 shares its mounting geometry with many OEM gas springs, it can often replace a wide range of “Kilen” or “Muelle neumático” components found in aftermarket catalogs. The spring’s universal design ensures that mechanics and DIY enthusiasts can source compatible parts without needing to search for obscure brand names.

Installation Guide

Installing the Lesjöfors 8017002 is straightforward, yet precision is key to achieving optimal performance. Follow these steps:

1. Preparation: Remove the existing bonnet support or any damaged gas spring. Clean the mounting area of debris and old sealant.
2. Positioning: Align the new spring’s mounting flange with the bolt holes on the bonnet bracket. Ensure that the O‑rings face outward to maintain a proper seal.
3. Bolt Tightening: Secure the spring using the supplied bolts, tightening in a cross pattern to distribute load evenly. Do not overtighten; follow torque specifications provided by Lesjöfors (typically 10–12 Nm).
4. Testing: Lift the bonnet manually to verify smooth operation. The spring should provide consistent resistance and return the bonnet to its closed position without excessive force.
5. Final Check: Inspect for any wobble or misalignment. Adjust as necessary before final tightening.

Performance Characteristics

The Lesjöfors 8017002 delivers a predictable, linear pressure curve that ensures the bonnet remains at the desired angle during use. Its high‑quality construction prevents:

• Gas Leaks: Dual O‑rings and sealed chambers maintain integrity over thousands of cycles.
• Corrosion: The protective coating resists rust even in harsh climates.
• Wear: Precision machining reduces internal friction, extending the spring’s lifespan.

Users report that the spring feels smooth and responsive, with no “sticking” or “slipping” during operation. This reliability is especially valuable for vehicles that undergo frequent bonnet opening, such as service bays or restoration workshops.

Maintenance & Longevity Tips

• Inspect the O‑rings periodically for signs of wear or cracking; replace if necessary.
• Avoid exposing the spring to extreme temperatures beyond its specified range.
• If the bonnet feels unusually stiff, check that the mounting bolts are properly torqued and that no debris has entered the gas chamber.

Why Choose Lesjöfors?

Lesjöfors is a well‑established name in automotive suspension components. Their focus on quality engineering ensures that each product meets rigorous standards for safety, performance, and durability. The 8017002 Bonnet gas spring exemplifies this commitment:

• Engineering Excellence: Designed by experienced engineers with a deep understanding of vehicle dynamics.
• Quality Materials: Uses premium alloy steel and advanced coatings to resist wear.
• Global Support: Widely available through authorized distributors, ensuring easy access for replacement parts.

Conclusion

The Lesjöfors 8017002 Bonnet gas spring is a reliable, high‑performance solution for engine cover support across a wide range of vehicles. Its robust construction, precise engineering, and proven compatibility make it an ideal choice for mechanics, restorers, and automotive enthusiasts who demand consistent performance and long‑term durability.