Arnott SK-3978 Suspension Strut and Coil Spring Assembly - Front

Overview of Arnott Coil Strut Assembly SK-3978

The Arnott Coil Strut Assembly SK-3978 is designed specifically for Mercedes-Benz ML320, ML350, ML500, and ML550 models. This suspension strut and coil spring assembly offers a reliable replacement option for maintaining your vehicle's ride quality and handling characteristics.

• Brand: Arnott
• Brand Line: Coil Strut Assembly
• Part Number: SK-3978
• Category: Suspension > Shocks and Struts
• Suspension Strut and Coil Spring Assembly with coil springs included
• Compressed Length: 793.75 mm
• Extended Length: 876.3 mm
• Travel Length: 82.55 mm
• Internal Construction: Twin-tube design
• Housing Material: Steel
• Lower Mount Type: Bracket
• Upper Mount Type: Stud
• Passive, non-adjustable strut

About the Arnott Coil Strut Assembly Product Line

The Arnott Coil Strut Assembly product line focuses on integrated suspension components that combine the coil spring and strut into a single unit. This design simplifies replacement and ensures proper alignment and performance for compatible vehicles. The SK-3978 model is engineered to meet the standard grade requirements for Mercedes-Benz ML-Class SUVs, providing consistent ride height and suspension travel without adjustable damping or gas charging features.

Detailed Product Description

The SK-3978 coil strut assembly features a twin-tube internal construction that offers durability and consistent performance under normal driving conditions. Constructed with a steel housing, this assembly is built to withstand the stresses of daily use. The coil spring is included, eliminating the need to reuse old springs and ensuring optimal suspension function. The strut is passive and non-adjustable, designed to maintain factory suspension characteristics without additional tuning options. Mounting is facilitated by a bracket-type lower mount and a stud-type upper mount, matching the original equipment specifications for Mercedes-Benz ML320, ML350, ML500, and ML550 models.

Common Applications and Problem Solving

• Replacement for worn or damaged suspension struts on Mercedes-Benz ML320, ML350, ML500, and ML550
• Restores proper ride height and suspension travel
• Eliminates noise and vibration caused by failing struts or springs
• Improves vehicle stability and handling compromised by suspension wear
• Addresses uneven tire wear related to suspension issues

Installation Notes and Tips

• Compatible with specified Mercedes-Benz ML-Class models; verify fitment before installation
• Mounting hardware is not included and should be reused or replaced as needed
• Professional installation is recommended due to the integrated coil spring and strut design
• Ensure proper torque specifications for upper stud and lower bracket mounts
• Inspect related suspension components during installation for wear or damage

Quality Assurance and Warranty

Arnott manufactures the SK-3978 coil strut assembly to meet OEM standards for fit and function. The steel housing and twin-tube design contribute to the product's durability. While specific warranty details are not provided here, Arnott products typically come with a limited warranty covering defects in materials and workmanship. Consult the product documentation or supplier for exact warranty terms.