Lesjofors 4017004 Suspension Spring

Lesjofors 4017004 Suspension Spring – Precision Engineering for the Modern SUV

Lesjofors 4017004 is a high‑performance suspension spring engineered to deliver exceptional ride quality, handling stability, and durability. Designed in Sweden by the renowned Lesjöfors company, this coil spring exemplifies the brand’s commitment to precision metallurgy and rigorous testing.

Key Technical Highlights

• Material Composition: Premium alloy steel with a proprietary heat‑treatment process that enhances tensile strength while maintaining flexibility.
• Spring Type: Helical coil spring, engineered for optimal load distribution and shock absorption.
• Load Capacity: Rated to support the weight specifications of contemporary compact SUVs, ensuring consistent performance under varying road conditions.
• Compatibility: Specifically calibrated for the Dacia Duster, fitting models from 2010 through 2018 across both petrol and diesel variants. The spring’s dimensions align with OEM specifications for front suspension assemblies.
• Installation: Designed for straightforward replacement of the front coil spring, requiring standard tools and no special modifications to the vehicle’s chassis or suspension geometry.

Performance Benefits

The Lesjofors 4017004 delivers a host of advantages that elevate driving dynamics:

• Enhanced Ride Comfort: The spring’s balanced stiffness absorbs road irregularities, reducing body roll and providing a smoother passenger experience.
• Improved Handling: By maintaining optimal wheel alignment under load, the spring contributes to sharper steering response and better cornering stability.
• Long‑Term Durability: The alloy steel construction resists fatigue, corrosion, and wear, extending service life even in harsh climates or high‑usage scenarios.
• Consistent Performance Across Conditions: Whether navigating gravel roads, urban streets, or highway stretches, the spring maintains predictable behavior, giving drivers confidence in all environments.

Installation Guide (Front Suspension)

Replacing a front coil spring with the Lesjofors 4017004 is a routine maintenance task. Follow these steps for optimal results:

1. Secure the Vehicle: Park on level ground, engage the parking brake, and lift the front of the vehicle using a jack. Support it securely with jack stands.
2. Remove Wheel Assembly: Detach the wheel to expose the suspension components.
3. Detach Shock Absorber: Loosen the upper mounting bolts of the shock absorber and carefully remove it from the strut assembly.
4. Extract Old Spring: Use a spring compressor or appropriate tool to compress the existing coil spring. Carefully release it, allowing it to unwind onto the wheel hub.
5. Install New Spring: Place the Lesjofors 4017004 onto the wheel hub, ensuring proper orientation and alignment with the mounting points.
6. Reattach Shock Absorber: Secure the shock absorber back onto the strut assembly, tightening bolts to manufacturer specifications.
7. Reassemble Wheel: Mount the wheel back onto the hub and torque the lug nuts in a star pattern to the specified value.
8. Lower Vehicle & Test Drive: Carefully lower the vehicle from jack stands, perform a short test drive, and verify that suspension behavior is smooth and free of abnormal noises.

Maintenance Tips

• Inspect the spring for visible signs of wear or damage after every 10,000 miles (or as recommended by your vehicle’s service schedule).
• Avoid overloading the vehicle beyond its rated capacity to preserve spring integrity.
• Keep the suspension components clean and free from debris; apply a light coat of anti‑rust spray if operating in coastal or high‑humidity areas.

Why Choose Lesjofors?

The Lesjöfors brand is synonymous with quality in the automotive world. Their springs are manufactured under strict ISO standards, undergo extensive laboratory testing, and are backed by a legacy of engineering excellence that dates back to 1909. By selecting the 4017004 suspension spring, owners of the Dacia Duster receive:

• Reliability: Proven performance across diverse driving conditions.
• Precision Fit: Exact match to OEM dimensions, eliminating fitment issues.
• Enhanced Safety: Consistent suspension behavior reduces the risk of handling anomalies.

Conclusion

The Lesjofors 4017004 suspension spring stands out as a premium component that blends advanced metallurgy, meticulous design, and practical usability. Whether you’re restoring an older Dacia Duster or upgrading a newer model, this coil spring delivers the ride quality, handling precision, and durability that discerning drivers demand.