Arnott SK-2420 Suspension Strut - Rear Left

Remanufactured OE Rear Left Air Strut

Arnott SK-2420 is a remanufactured rear left suspension strut for select Mercedes-Benz SL55 AMG and SL65 AMG models. It is built from a rebuilt OE core and uses a twin-tube design with a coil-over spring assembly, black protective boot, and linear spring rate for a direct replacement on vehicles with active suspension.

Arnott’s REMANUFACTURED line focuses on restoring original equipment function with updated internal sealing components and a rebuilt construction process. For Mercedes-Benz owners looking for a rear left air strut replacement, SK-2420 offers an OE-style solution for the 2003-2006 Mercedes-Benz SL55 AMG and 2005-2006 Mercedes-Benz SL65 AMG.

Key Features

• Remanufactured OE left rear air strut for Mercedes-Benz
• Twin-tube internal construction
• Coil over springs included with spring seat and spring isolators
• Black boot included for added protection
• Heavy-duty crimping rings for rebuilt assembly integrity
• Standard grade type with linear spring rate
• Upper bolt mount and lower loop/eyelet mount
• Not adjustable; no air bladder, air adjustable, or air ride suspension

Detailed Description

Arnott SK-2420 is engineered as a completely rebuilt OE rear left strut for Mercedes-Benz applications. The unit is disassembled and rebuilt from the ground up, with Arnott using a polyurethane seal design developed and tested with a major seal manufacturer to improve long-term durability. This suspension strut is a direct-fit replacement for the rear left position on the 2003-2006 Mercedes-Benz SL55 AMG and 2005-2006 Mercedes-Benz SL65 AMG.

This part cross-references Mercedes-Benz OE numbers 2303203113 and 2303204713 for the same application. The Arnott REMANUFACTURED line is positioned as a rebuilt OE alternative for drivers who need a rear suspension strut that matches the original active suspension setup without changing the vehicle’s factory configuration.

Common Problems This Part Can Address

• Rear left suspension sag or uneven ride height
• Loss of damping control at the rear of the vehicle
• Noise or instability from a worn strut assembly
• Ride quality changes caused by aging OE air strut components
• Failure of the original rear left active suspension strut

Installation Notes and Tips

Fits 2003-2006 Mercedes-Benz SL55 AMG, rear left. Fits 2005-2006 Mercedes-Benz SL65 AMG, rear left. Verify the vehicle’s suspension configuration and OE part number before installation. Mounting hardware is not included. Because this is a remanufactured suspension strut, inspect adjacent suspension components, ride height sensors, and air system connections during replacement to confirm proper operation after installation.

Quality Assurance

Arnott backs this remanufactured strut with a Limited Lifetime Warranty. The rebuilt construction, twin-tube design, and upgraded seal approach are intended to restore OE-style performance for Mercedes-Benz SL55 AMG and SL65 AMG rear suspension service.