Arnott P-3952 Air Suspension Compressor

Arnott P-3952 Air Suspension Compressor

Arnott P-3952 is a new air suspension compressor assembly for select BMW 7-Series applications. It is a direct OE replacement for the factory compressor and includes an integrated air dryer, relay, and electrical connectors for plug-and-play service on supported vehicles.

Built for 12V systems, this compressor is a practical replacement when the original unit can no longer maintain proper air suspension pressure. It is also a fitment-based solution for BMW 740i, 750i xDrive, and other 7-Series models listed below.

Key Features

• Direct replacement air suspension compressor for BMW air suspension systems
• New unit with standard-grade construction
• Integrated air dryer included
• Relay included for service replacement
• Female connector design with 3 connectors
• Black finish, 12V operation
• Arnott P-3952 cross-references BMW OE part numbers 37206861882 and 37206884682

Product Details

Arnott’s Air Suspension Compressor line focuses on OE-style replacement components for vehicles equipped with factory air suspension. The P-3952 compressor is engineered for the 2016-2022 BMW 7-Series platform and related models, including G11/G12 applications, with direct replacement fitment for the listed BMW 740i, 745e, 750i, 750Li, M760i, and Gran Turismo variants. The integrated dryer helps manage moisture in the air system, while the included electrical connectors support a cleaner replacement process. This part number, P-3952, is intended for vehicles that need a compressor assembly replacement rather than a repair of the existing unit.

Common Issues This Part Can Address

• Compressor that no longer builds or maintains air pressure
• Vehicle sitting low due to air suspension pressure loss
• Slow suspension height recovery after startup
• Compressor noise from a worn or failing unit
• Moisture-related compressor performance problems in the air system

Installation Notes

Verify the vehicle’s OE compressor part number and match it to the listed BMW applications before ordering. Inspect the air suspension system for leaks, especially rubber air springs, because a leak can cause repeat compressor failure. This compressor is supplied as a replacement assembly for supported BMW models and uses the listed connector configuration for installation on the correct application.

Quality Assurance

Arnott supplies OE-style air suspension replacement components for European luxury vehicles, and this compressor is a new replacement unit for the specified BMW applications. Confirm fitment by model year and OE reference before installation. Arnott P-3952 also cross-references BMW OE part numbers 37206886722 and 37206884682.