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Arnott AS-3121 Air Suspension Strut - Rear
| Brand | Arnott AS-3121 |
|---|---|
| Position | Rear |
| 10527 | No |
| Mounting Hardware Included | Yes |
| Bladder Heavy Duty Crimping Rings Included | Yes |
| Air Adjustable | Yes |
| Air Ride Suspension | Yes |
| Bearing Plate Included | Yes |
| Body End Measuring Point | Center eye |
| Boot Color | Black |
| Boot Included | Yes |
| Internal Damper Type | Hydraulic |
| Lower Mount Type | Loop/eyelet |
| New Or Remanufactured | New |
| Progressive Spring Rate | Yes |
| Shock Absorber Rod End Measuring Point | Shoulder of stud |
| Shock Spring Assisted | Yes |
| Spring Isolators Included | Yes |
| Spring Rate Type | Progressive |
| Spring Seat Included | No |
| Upper Mount Type | Stud |
| Upper Mounting Isolator Included | Yes |
| Product line | NEW |
| Fits | Audi · 8 vehicles |
OE-style replacement. New air suspension strut replaces the original assembly with an OE-like ride.
Premium damper. Hydraulic damping helps deliver smooth, controlled suspension response.
Tier 1 components. Includes a Continental ContiTech air sleeve plus protective aluminum can and dust cover.
Cross-references Audi 4H0616001AB, Audi 4H0616001AH and Audi 4H0616001M for the same application. See all 6.
Will it fit your vehicle?
Free return shipping if it doesn't fit.
Rear Air Strut for Audi A8 Quattro
The Arnott AS-3121 is a new rear air suspension strut for the 2011-2018 Audi A8 Quattro without sport suspension. It replaces the OE rear strut with an OE-style ride feel and is built with premium suspension components for direct service on the left or right side.
Key Features
- New Arnott engineered aftermarket air suspension strut, not remanufactured
- Fits the rear of 2011-2018 Audi A8 Quattro models without sport suspension
- Universal left or right rear application
- Premium hydraulic damper with progressive spring rate
- Multi-ply, cross-corded Continental ContiTech air sleeve
- Aluminum can and dust cover protect the air sleeve
- CNC-machined top, new air line fitting, and connector valve
- Includes mounting hardware, bearing plate, boot, spring isolators, and upper mounting isolator
Product Details
Arnott AS-3121 is built for rear suspension service on the Audi A8 Quattro platform and is engineered to replace the original air strut assembly on vehicles with standard suspension PR codes 1BK and 1BY. The design combines a hydraulic internal damper with an air-adjustable, air ride suspension layout to maintain controlled rear ride height and consistent damping response. Arnott AS-3121 is a direct-fit solution for the rear of the Audi A8 Quattro and is referenced by part number AS-3121 for ordering and catalog lookup.
This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.
What It Helps Address
- Rear corner sag from a leaking or worn air spring
- Uneven ride height at the back of the vehicle
- Harsh or inconsistent rear damping response
- Air leaks at the strut, fitting, or sleeve assembly
- Warning lights or suspension faults related to rear air suspension performance
Installation Notes
Fits 2011-2018 Audi A8 Quattro, rear. Confirm the vehicle is without sport suspension before ordering. This rear air strut fits either the left or right side, and the assembly includes the air sleeve, damper, and related mounting components needed for replacement service. Verify PR codes 1BK and 1BY during diagnosis and compare the original unit before installation.
Quality Assurance
Arnott AS-3121 is a new assembly built with Tier 1 components, including O-rings, bump stop, heavy-duty crimping rings, a new air line fitting, connector valve, and a Continental ContiTech air sleeve. Arnott backs this air strut with its industry-leading warranty.
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2018 | Audi | A8 Quattro | Rear | New; w/Std Suspension PR Codes 1BK 1BY; NEW |
| 2017 | Audi | A8 Quattro | Rear | New; w/Std Suspension PR Codes 1BK 1BY; NEW |
| 2016 | Audi | A8 Quattro | Rear | New; w/Std Suspension PR Codes 1BK 1BY; NEW |
| 2015 | Audi | A8 Quattro | Rear | New; w/Std Suspension PR Codes 1BK 1BY; NEW |
| 2014 | Audi | A8 Quattro | Rear | New; w/Std Suspension PR Codes 1BK 1BY; NEW |
| 2013 | Audi | A8 Quattro | Rear | New; w/Std Suspension PR Codes 1BK 1BY; NEW |
| 2012 | Audi | A8 Quattro | Rear | New; w/Std Suspension PR Codes 1BK 1BY; NEW |
| 2011 | Audi | A8 Quattro | Rear | New; w/Std Suspension PR Codes 1BK 1BY; NEW |
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