Arnott AS-3405 Air Suspension Strut - Front Left

Overview of Arnott New AS-3405 Air Suspension Strut

The Arnott New AS-3405 air suspension strut is engineered for select BMW models, including the 640i xDrive Gran Turismo and 7 Series variants. Designed to restore factory ride quality, this air adjustable strut integrates advanced features for reliable performance and durability.

• Compatible with BMW 640i xDrive Gran Turismo, 740i xDrive, 745e xDrive, 745Le xDrive, 750i xDrive, and 750Li xDrive
• Air adjustable with integrated air ride suspension technology
• Includes mounting hardware, bladder heavy duty crimping rings, bearing plate, boot, and spring isolators
• Gas charged with hydraulic internal damper for smooth damping
• Progressive spring rate with spring-assisted shock design
• Upper mount type: stud with isolator included; lower mount type: base cup
• Boot color: black, designed for durability and protection

Detailed Product Features and Specifications

The Arnott New AS-3405 air suspension strut is a new replacement part designed to meet or exceed OEM standards. It features a gas-charged, hydraulic internal damper that provides consistent shock absorption without adjustable damping. The air adjustable design supports the vehicle's air ride suspension system, allowing for a controlled and comfortable ride. The progressive spring rate and spring-assisted shock help maintain stability and handling under varying load conditions. The strut includes a black protective boot and spring isolators to reduce noise and wear. The upper mount is a stud type with an included isolator, while the lower mount uses a base cup design. The body end measuring point is at the center eye, and the shock absorber rod end measuring point is at the shoulder of the stud, ensuring precise fitment.

Arnott New Brand Line Information

The "New" brand line from Arnott represents newly manufactured suspension components designed to provide reliable, direct-fit replacements for original equipment parts. This line focuses on quality materials and construction to restore vehicle suspension performance without remanufacturing compromises. The AS-3405 air suspension strut is part of this line, offering a fresh, factory-grade solution for BMW air suspension systems.

Common Applications and Problem Solving

• Restores proper ride height and air suspension function on compatible BMW models
• Eliminates air leaks and strut failure symptoms such as uneven ride or sagging
• Addresses noise and vibration issues caused by worn isolators or damaged boots
• Improves handling and stability with progressive spring rate and hydraulic damping
• Replaces worn or damaged original air suspension struts to maintain vehicle safety

Installation Notes and Tips

• Ensure compatibility with BMW 640i xDrive Gran Turismo, 740i xDrive, 745e xDrive, 745Le xDrive, 750i xDrive, and 750Li xDrive before installation
• Use proper tools to measure mounting points: center eye for body end and shoulder of stud for shock rod end
• Inspect and replace any worn spring seats or isolators not included with this strut
• Follow manufacturer torque specifications for upper stud and lower base cup mounts
• Check air lines and connections for leaks after installation to ensure proper air suspension operation

Quality Assurance and Warranty

The Arnott New AS-3405 air suspension strut is manufactured to meet strict quality standards, ensuring durability and performance consistent with OEM parts. This new component undergoes rigorous testing to verify fitment and function. Warranty coverage details should be confirmed with the point of purchase or Arnott directly, as warranty terms may vary.