Arnott P-3879 Air Suspension Compressor

Arnott Air Suspension Compressor for Mercedes-Benz

Restore proper air suspension performance with the Arnott P-3879 air suspension compressor. This aftermarket compressor is built to original equipment specifications for a direct OE replacement on select Mercedes-Benz C-Class, E-Class, GLC, CLS, AMG GT, and EQC models.

Arnott’s Air Suspension Compressor line focuses on OE-style replacement parts engineered for exact fitment and dependable operation. The P-3879 includes a heavy-duty motor, an epoxy-coated housing to help resist corrosion, a new dryer, an outer support bracket, an intake air hose, and an electrical connector for a cleaner installation.

Key Features

• Arnott air suspension compressor, part number P-3879
• Built to original equipment specifications for direct OE replacement fitment
• Heavy-duty motor for air suspension system operation
• Epoxy-coated finish to help protect against corrosion
• New dryer included
• 12V standard-grade compressor assembly kit
• Female connector, single connector design
• Airflow rate: 20
• Relay included

Detailed Description

The Arnott P-3879 is an aftermarket air suspension compressor designed for Mercedes-Benz vehicles that rely on air spring pressure control for ride height and suspension function. It is a direct OE replacement for a wide range of applications, including Mercedes-Benz C300, E300, GLC300, CLS450, AMG GT 53, and related models. If you are searching for an air suspension compressor for Mercedes-Benz C-Class W205, E-Class W213, or GLC X253 applications, this unit is built to match the original fit and function requirements.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Common Issues It Can Help Resolve

• Slow or failed air suspension lift-up
• Compressor noise caused by worn internal components
• Suspension height not reaching normal operating level
• Air suspension warning lights related to compressor performance
• Reduced ride quality from insufficient system pressure

Installation Notes and Tips

• Verify vehicle fitment by year, model, and OE part number before installation.
• Inspect the air lines, relay, and related suspension components for leaks or damage before replacing the compressor.
• The compressor assembly includes an intake air hose and electrical connector for installation support.
• Mounting hardware is not listed as included.
• Professional installation is recommended for air suspension system repairs.

Quality Assurance

Arnott manufactures this compressor as a new replacement part built to OE specifications for consistent fitment and function. Part number P-3879 is engineered for Mercedes-Benz air suspension applications and is backed by Arnott’s aftermarket product standards.