Arnott 166 320 03 25 Rear Air Suspension Spring for Mercedes-Benz - 166 320 03 25

The Arnott 166 320 03 25 (A-2596) is a premium replacement rear air suspension spring engineered specifically for Mercedes-Benz GL/GLS-Class and ML/GLE-Class vehicles equipped with AIRMATIC suspension systems. This high-quality aftermarket air spring provides OE-equivalent performance and reliability at a fraction of dealer prices, restoring your vehicle's self-leveling suspension capabilities and comfortable ride quality.

Key Features:

• Multi-ply Continental ContiTech bladder construction for superior durability and longevity
• High-impact resin upper and lower mounts resist wear and ensure secure fitment
• Heavy-duty crimping rings provide reliable, leak-free performance
• Includes 4mm quick-connect airline fitting and new nylon air spring retainer
• Rubber vibration insulator reduces noise and harshness
• Fits both left and right rear positions
• Compatible with vehicles equipped with Semi Active Air Suspension (Code 489)
• Compatible with standard AIRMATIC and AMG-equipped models

Arnott air springs are engineered and rigorously tested in the company's American facilities using ISO 9001:2015 certified quality management principles. Each spring undergoes extensive laboratory and road testing to ensure it meets or exceeds OEM specifications. The state-of-the-art multi-ply air sleeve is manufactured by ContiTech, a world-leading rubber technology company, ensuring exceptional durability and resistance to environmental factors.

This air spring directly replaces Mercedes-Benz OEM part numbers 1663200325, 1643200225, 1643200425, 1643200625, and 1643200725. Professional installation is recommended to ensure proper fitment and warranty coverage. Arnott backs this product with a Limited Lifetime Warranty for personal use vehicles, demonstrating their confidence in superior quality and long-term performance.