Arnott K-4364 Air Suspension Pressure Valve - Front

Arnott K-4364 Pressure Retention Valve

The Arnott K-4364 is a brass Pressure Retention Valve (PRV) for air suspension systems that helps keep strut assemblies pressurized during shipping and installation. It is used on select Mercedes-Benz S-Class applications at the front strut and addresses common pressure loss issues caused by aging valves, compressor problems, compromised air lines, or valve block leaks.

Key Features

• Pressure Retention Valve (PRV) for air suspension strut assemblies
• Brass construction for regular-duty service
• Male end connections with metric sizing
• Helps retain preset air pressure during handling and installation
• Direct repair solution for corroded or sticking original valves
• Arnott K-4364 application-specific air suspension valve

Detailed Description

Arnott K-4364 is an air suspension pressure valve built to maintain a preset amount of air pressure in the strut assembly. That retained pressure reduces the risk of air spring damage during installation and helps preserve strut function when the original valve has corroded or stopped operating correctly. For Mercedes-Benz S430, S500, and S350 front strut applications, this PRV supports proper inflation and deflation behavior when the suspension system is being serviced.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application. Use Arnott K-4364 when servicing front-at-strut air suspension components on Mercedes-Benz S-Class models that require a metric brass PRV.

What It Helps Fix

• Front strut will not inflate or deflate properly
• Air pressure loss caused by a leaking or worn PRV
• Corrosion at the original valve body
• Pressure loss during strut shipping or installation
• Suspension service issues related to compressor failure or air line leaks

Installation Notes and Tips

• Fits 2006 Mercedes-Benz S350, front at strut.
• Fits 2004-2006 Mercedes-Benz S430, front at strut.
• Fits 2001-2002 Mercedes-Benz S430, front at strut.
• Fits 2006 Mercedes-Benz S500, front at strut.
• Fits 2000-2004 Mercedes-Benz S500, front at strut.
• Fits 2005 Mercedes-Benz S500, front at strut.
• Fits 2003 Mercedes-Benz S430, front at strut.
• Fits 2000 Mercedes-Benz S430, front at strut.

Verify the existing valve style and front strut configuration before service. Arnott K-4364 is a metric, male-to-male PRV intended for air suspension repair work on the listed Mercedes-Benz S-Class applications.

Quality Assurance

Arnott manufactures air suspension components for service and replacement applications, and the K-4364 is built as a regular-grade brass pressure retention valve for the listed fitments.