Arnott A-2737 Air Suspension Spring - Rear Left

Rear Left Air Spring for BMW E39 Wagons

Arnott A-2737 is a rear left air suspension spring for the 1999-2003 BMW 5 Series Wagon (E39) with rear air leveling. It uses a multi-ply Continental ContiTech rubber bladder, steel top mount, heavy-duty crimping rings, and a high-impact resin bottom piston with a brass insert for added durability.

Compatible with BMW 528i, 525i, and 540i wagon applications listed below, this Arnott NEW air spring is designed, assembled, and tested in the USA. The A-2737 is built for direct rear-left replacement on rear leveling-equipped E39 wagons.

Key Features

• Rear left air suspension spring for BMW 5 Series Wagon (E39)
• Multi-ply Continental ContiTech air spring bladder
• Rubber bellows with black sleeve-style construction
• Steel top mount with stud upper mount and base cup lower mount
• High-impact resin bottom piston with brass insert
• Standard-grade replacement for rear air leveling systems
• Arnott A-2737 part number for direct identification

Product Details

Arnott’s NEW product line focuses on replacement air suspension components built for specific vehicle applications. The A-2737 follows that approach with a rear-left BMW 5 Series air spring engineered for the E39 wagon platform and rear air leveling setups. The rubber bellows, reinforced crimping rings, and durable piston design support consistent suspension height control on the 1999-2003 BMW 5 Series Wagon.

This part cross-references BMW 37121094613 and 37121095081 for the same application. Use Arnott A-2737 when replacing the rear left air spring on a BMW 525i, 528i, or 540i wagon with rear leveling.

What It Helps Fix

• Rear suspension sag on the left side
• Uneven ride height in rear air leveling systems
• Air leaks from a worn bellows assembly
• Loss of support from aging rear air springs
• Ride-height inconsistency on BMW E39 wagons

Installation Notes

Fits 2001-2003 BMW 525i, rear left; 1999-2003 BMW 540i, rear left; and 1999-2000 BMW 528i, rear left. Confirm rear leveling compatibility before installation and inspect the opposite rear air spring for wear. Arnott recommends replacing both rear air springs at the same time to maintain balanced ride height and suspension response.

Quality Assurance

Arnott designs, assembles, and tests this air spring in the USA. The A-2737 is backed by a Limited Lifetime Warranty.