Arnott AS-2981 Air Suspension Strut - Rear Left

Rear Air Strut for BMW 7-Series

Arnott AS-2981 is a new rear air suspension strut for the 2001-2008 BMW 7-Series E65 and E66 chassis without Electronic Damping Control (EDC). It is built for the rear left position on 2002-2005 BMW 745i and 745Li models, with OE-style fitment and ride stability in mind.

Key Features

• New rear air suspension strut for BMW 7-Series E65/E66 applications
• Fits 2002-2005 BMW 745i, rear left
• Fits 2002-2005 BMW 745Li, rear left
• Designed for vehicles without Electronic Damping Control (EDC) option code S223A
• Heavy-duty Continental ContiTech air spring bladder
• New shock absorber with hydraulic internal damper
• Progressive spring rate for controlled ride response
• Pre-assembled for OE fit
• Made in the USA with CNC-machined aircraft-quality aluminum components
• Includes protective dust boot, air fitting, O-rings, bump stop, and aluminum can

Product Details

This Arnott air suspension strut is engineered as a direct replacement for the rear left corner on the BMW 745i and BMW 745Li. Arnott’s NEW product line focuses on fully assembled suspension components, and AS-2981 follows that approach with a new air spring bladder, new shock, and precision-machined mounting parts. The assembly uses a stud upper mount, loop/eyelet lower mount, black boot, spring isolators, and a gas-charged design to support consistent rear suspension performance.

This part cross-references BMW 37106767863 and 37106778799 for the same application. The part number AS-2981 is also useful when searching for a rear air strut for BMW 7-Series E65/E66 models without EDC.

What It Helps Address

• Rear suspension sag on the left side
• Air spring leakage from a worn bladder
• Rough or unstable rear ride quality
• Noise from a deteriorated strut assembly
• Loss of proper ride height control

Installation Notes

Verify that the vehicle is a 2002-2005 BMW 745i or 745Li with no Electronic Damping Control (EDC) option code S223A before ordering. This rear air strut is pre-assembled for OE fit, which helps simplify replacement, but the vehicle should be inspected for related wear in the air suspension system before installation. Follow the included installation manual and confirm all air line and mounting points are clean and undamaged.

Quality Assurance

Arnott assembles AS-2981 in the USA using new materials and CNC-machined aluminum components. The design combines a Continental ContiTech air spring bladder with a new shock absorber to support OEM-level ride stability for BMW 7-Series rear suspension service.