Arnott Industries Air Suspension Strut P/N:AS-3123
Keep your Audi riding level and controlled with the Arnott Industries Rear Air Suspension Strut (AS-3231), a completely assembled, ready-to-install Gen-II unit that fits both the left and right side. It drops in as a direct-fit replacement for the 2001-2005 Audi Allroad Quattro (see the Buyer's Guide tab for engine details), replacing a worn or leaking original with a fully built strut for a faster installation.
Arnott recommends replacing these struts in pairs for balanced ride quality. Sold individually — order two for a complete rear replacement.
Interchange: 4Z7513031 · 4Z7513031A · 4Z7513032 · 4Z7513032A · 4Z7616051A · 4Z7616052A
This part cross-references / interchanges with the following part numbers:
What vehicle does this air strut fit?
It's a direct-fit rear replacement for the 2001-2005 Audi Allroad Quattro, fitting both the left and right side. See the Buyer's Guide tab to confirm fitment for your vehicle.
Do I need to replace both struts at once?
Arnott recommends replacing these struts in pairs for balanced ride quality. Each strut is sold individually, so order two for a complete rear replacement.
Does it come fully assembled?
Yes. It ships as a complete, pre-assembled, ready-to-install strut combining the twin-tube shock and the Gen-II air spring for a faster installation.
What is the air spring made of?
It uses a multi-ply air bladder manufactured by ContiTech with an aluminum outer sleeve, a machined aluminum top, and a protective dust boot to help extend the assembly's life.
Does it work with the factory air suspension?
It supports the vehicle's auto-leveling functionality and converts adaptive suspension to passive. A detailed installation manual and video are available.
WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.