Arnott AS-3407 Air Suspension Strut - Rear Left

Rear Left Air Strut for BMW 7-Series

Restore rear suspension control on select BMW 7-Series models with the Arnott AS-3407 rear left air suspension strut. This new, non-remanufactured assembly is built for the 2016-2022 BMW 7-Series platform and combines air ride support with a custom-tuned shock absorber for consistent ride quality and handling.

Arnott’s New line focuses on direct-fit replacement air suspension components engineered for OE-style function. The AS-3407 is assembled in the USA and uses long-lasting seals, O-rings, a bump stop, heavy-duty crimping rings, a new air fitting, connector valve, and a dust boot for added protection.

• New rear left air suspension strut, not remanufactured
• Air adjustable design for BMW rear air ride suspension
• Gas charged with hydraulic internal damper
• Progressive spring rate for controlled ride response
• Includes bearing plate, boot, mounting hardware, and isolators
• Black dust boot helps protect the strut assembly
• Direct replacement for OE part numbers 37106874593 and 37107915953
• Arnott part number AS-3407

Detailed Product Overview

The Arnott AS-3407 air suspension strut is designed for rear left applications on the BMW 740i, 740i xDrive, 745e, 745e xDrive, 745Le xDrive, 750i, 750i xDrive, 750Li, 750Li xDrive, 740e xDrive, and 740Le xDrive where equipped with rear air suspension. It replaces the OE strut with a new assembly that uses a custom-tuned shock absorber to maintain ride comfort and road control on the BMW 7-Series chassis.

This part number AS-3407 is built with air-adjustable operation, a loop/eyelet lower mount, stud upper mount, and progressive spring rate construction. The design supports rear suspension height control while helping preserve the refined ride expected from the BMW 7-Series.

Common Problems This Part Can Address

• Rear suspension sag on the left side
• Air leaks from worn seals, O-rings, or bladder components
• Excessive bouncing or reduced damping control
• Warning lights related to rear air suspension performance
• Uneven ride height on BMW 7-Series rear suspension systems

Installation Notes and Tips

Verify the vehicle’s rear left position and OE cross-reference before installation. This strut uses a center-eye body end, loop/eyelet lower mount, and stud upper mount, so confirm mounting points and air line connection details match the original setup. After installation, inspect ride height, air line routing, and system operation to ensure proper function.

Compatible With 2016-2022 BMW 7-Series rear left applications, including 740i, 740i xDrive, 745e, 745e xDrive, 745Le xDrive, 750i, 750i xDrive, 750Li, 750Li xDrive, 740e xDrive, and 740Le xDrive. Fits 2016-2022 BMW 7-Series, rear left.

Quality Assurance

Arnott’s New product line is built as a new replacement solution for air suspension service, and the AS-3407 is assembled in the USA with application-specific components and protective hardware. The part is engineered to replace the original rear left strut on the listed BMW 7-Series models.