Arnott K-4363 Air Suspension Pressure Valve - Front

Arnott K-4363 Pressure Retention Valve

The Arnott K-4363 is a brass pressure retention valve (PRV) for air suspension systems that use a front strut-mounted valve. It helps keep a preset amount of air pressure in the strut, which can reduce the risk of air spring damage during service and support proper suspension function when related air system components are worn.

• Pressure retention valve (PRV) for air suspension struts
• Brass construction with male end connections
• Metric design for OE-style air suspension service
• Helps retain air pressure during compressor, line, or valve block issues
• Can restore strut inflation and deflation performance when older valves corrode
• Fits front strut applications on select Bentley, Audi, and Volkswagen models

Built for front strut air suspension service, this valve is used to maintain pressure in the air spring assembly so the vehicle can retain suspension support if the compressor fails, an air line is compromised, or the valve block leaks. Arnott K-4363 is a practical repair for aging valves that may corrode and prevent the strut from inflating or deflating correctly. This part cross-references OE-style numbers such as 3D0616039 and 4E0616039R for the same application.

Vehicle Fitment

• Fits 2019 Bentley Flying Spur, N/A, at front strut
• Fits 2018 Bentley Flying Spur, front, at strut
• Fits 2017 Bentley Flying Spur, N/A, at front strut
• Fits 2015-2016 Bentley Flying Spur, front, at strut
• Fits 2013-2014 Bentley Flying Spur, N/A, at front strut
• Fits 2018 Bentley Continental, front, at strut
• Fits 2016-2017 Bentley Continental, N/A, at front strut
• Fits 2013-2015 Bentley Continental, front, at strut
• Fits 2011-2012 Bentley Continental, N/A, at front strut
• Fits 2008-2010 Bentley Continental, front, at strut
• Fits 2006-2007 Bentley Continental, N/A, at front strut
• Fits 2005 Bentley Continental, front, at strut
• Fits 2004 Bentley Continental, N/A, at front strut
• Fits 2003 Bentley Continental, front, at strut
• Fits 2010 Audi A8 Quattro, front, at strut
• Fits 2007-2010 Audi S8, N/A, at front strut
• Fits 2004-2009 Audi A8 Quattro, N/A, at front strut
• Fits 2004-2006 Volkswagen Phaeton, front, at strut

Common Uses

• Front air strut will not hold pressure after service
• Corroded or sticking valve prevents inflation or deflation
• Air suspension loses support after compressor or line problems
• Valve block leakage affects strut pressure retention
• Restoring function on aging Bentley, Audi, or Volkswagen air suspension systems

Installation Notes

Install on the front strut air suspension assembly only where the vehicle application calls for a pressure retention valve. Verify the OE part number and match the vehicle’s suspension configuration before installation. Because this component interfaces with pressurized air suspension parts, clean sealing surfaces and correct torque practices are important for reliable operation.

Quality Assurance

Arnott supplies air suspension service parts engineered for OE-style fitment and function. K-4363 is a brass PRV designed to support dependable pressure retention in select Bentley, Audi, and Volkswagen front strut applications.