Arnott AS-3074 Air Suspension Strut - Rear Left

Rear Left Air Strut for Lexus LS 430

Arnott AS-3074 is a new rear left air suspension strut for the 2001-2006 Lexus LS 430 with Height Adjustable Suspension, including the LS Ultimate Luxury edition. It replaces the original rear air strut with a new assembly built for the Lexus LS 430 ride quality and suspension control owners expect.

Key Features

• Fits 2001-2006 Lexus LS 430, rear left
• New, not remanufactured, air suspension strut
• Custom-tuned hydraulic shock absorber with progressive spring rate
• Heavy-duty ContiTech air bladder protected by an aluminum can
• CNC-machined top mount made from aircraft-quality aluminum
• Rubber-coated steel vibration isolator plates
• Includes dust boot, bump stop, seals, O-rings, and OE-style quick connect air fitting
• Assembled in the USA

Detailed Description

Arnott NEW line products focus on direct-fit replacement air suspension components built for specific vehicle applications. AS-3074 follows that approach with a new rear left air suspension strut for the Lexus LS 430, combining an air-adjustable design with a custom-valved shock absorber to maintain the factory-style luxury ride. The assembly uses a heavy-duty ContiTech air bladder, an aluminum protective can, and a CNC-machined aluminum top mount for durable service in the rear suspension of the LS 430. This part number, AS-3074, is engineered for vehicles equipped with Height Adjustable Suspension and is a direct replacement for the original rear left unit.

This part cross-references Lexus 4809050110 and 4809050120 for the same application.

What It Helps Address

• Rear suspension sag on a Lexus LS 430
• Air spring leakage at the rear left corner
• Excessive bouncing or poor damping response
• Uneven ride height from a worn original strut
• Noisy or unstable rear suspension operation

Installation Notes

Compatible With 2001-2006 Lexus LS 430, rear left, for models with Height Adjustable Suspension. Verify the OE air line connection, mounting points, and suspension configuration before installation. AS-3074 uses an OE-style quick connect air fitting and a stud/loop-eyelet mounting layout, so matching the original hardware and routing is important for proper fitment. Part number AS-3074 should be matched to the rear left position only.

Quality Assurance

Arnott AS-3074 is a new assembly built with long-lasting seals, O-rings, bump stop, heavy-duty crimping rings, and a dust boot to protect the shock. The combination of ContiTech air spring components, aluminum construction, and USA assembly supports consistent fit and finish for Lexus LS 430 rear suspension service.