Landnovo 55350-3M501 Rear Left Air Spring for Hyundai Equus VI | Premium OEM Pneumatic Suspension Replacement

LANDNOVO — Precision in Motion. Engineered by GB.

Is your Hyundai Equus sitting unevenly at the rear, sagging on the left side, or displaying a suspension warning light? The culprit is often a failed rear air spring. The Landnovo 55350-3M501 Rear Left Air Spring is a premium, direct OEM-grade replacement engineered to restore your vehicle's legendary comfort and adaptive air suspension performance.

The Landnovo Difference

Landnovo is a premium automotive brand with a distinct British engineering heritage, crafted for discerning drivers who demand nothing but the best for their vehicles. Every Landnovo component is Designed by GB — a mark of British precision, quality, and durability.

This rear left air spring is manufactured to the highest standards, matching the quality of the original equipment (OE 55350-3M501) that came factory-installed on your Hyundai. As confirmed by Hyundai's official technical service bulletin, this part number is the direct supersession for the earlier 55350-3M500 and is the current service part for 2011-2012 model year Equus (VI) vehicles. It is a complete drop-in replacement, designed for a straightforward installation.

Why Choose the Landnovo Air Spring?

The air spring is a critical component of your Equus's adaptive air suspension system. It works in coordination with sensors, valves, and the compressor to maintain proper ride height, support vehicle loads, and ensure optimal comfort across all driving conditions. A failing air spring can cause sagging, a rough ride, and put immense strain on the air compressor, potentially leading to costly compressor failure.

Instead of paying dealership prices, the Landnovo air spring provides the same OE-level reliability at a fraction of the cost.

Key Features

• OEM-Grade Quality: Manufactured to meet or exceed original equipment specifications, engineered for reliable performance and durability.
• Direct Fit Replacement: Designed as a direct replacement for the original unit (OE 55350-3M501 / supersedes 55350-3M500) for a hassle-free installation.
• Restores Ride Quality: Fixes common issues including rear sagging, uneven ride height, rough rides, and suspension warning lights.
• Multi-Ply Air Sleeve: Features a high-quality multi-ply air sleeve for superior durability and leak-free performance.
• Durable Construction: Built with heavy-duty crimping rings and high-strength mounts to withstand a wide range of driving conditions.
• Adaptive Air Suspension Compatible: Engineered to work seamlessly with your Equus's factory electronic suspension system.
• British-Engineered Precision: Designed by GB with Landnovo's signature commitment to quality and reliability.
• 12-Month Warranty: Backed by Landnovo's comprehensive warranty for your peace of mind.

Fitment

This rear left air spring is compatible with the following Hyundai vehicles equipped with factory adaptive air suspension:

• Hyundai Equus (VI) – 2011-2016
  • 2011: 4.6L V8 Gas (Signature, Ultimate trims)
  • 2012-2016: 5.0L V8 Gas (Signature, Ultimate trims)

Position: Rear Left (Driver Side on LHD vehicles)

Important Fitment Note: According to Hyundai's official service information, when replacing an older version rear air spring (55350-3M500), it is mandatory to replace both left and right springs at the same time. This ensures both sides of the rear suspension are of the same type, as the new service parts have different physical dimensions (longer assembly, smaller diameter, different top hat angle). The right side counterpart is 55360-3M501.

Note: Please confirm compatibility with your specific vehicle using your VIN before purchasing.

OE Cross-Reference

This part is available under multiple OEM numbers. Please verify your original part number before ordering:

• 55350-3M501 (Primary – this listing / Current Service Part)
• 553503M501
• 55350-3M500 (Superseded – replaced by 55350-3M501)
• 553503M500 (Superseded)

Product Specifications

• Type: Rear Left Air Spring (Pneumatic Spring / Rubber Bellow)
• Position: Rear Left
• Other Names: Spring Assembly Air Rear Left-hand
• Material: High-grade rubber with multi-ply construction, steel end caps
• Design: Adaptive air suspension spring with integrated dust boot

Symptoms of a Failing Air Spring

• Rear sagging – one corner, one side, or the whole rear sits lower than normal.
• Rough or bouncy ride – loss of cushioning, making the vehicle feel harsh over bumps.
• Air compressor running constantly – the system tries to compensate for leaking air springs.
• Hissing noise – audible air leak from the air spring area.
• Suspension warning light – the dashboard displays a suspension system warning.

Installation Tips

• Professional installation is highly recommended for this component.
• Always replace air springs in pairs (both rear left and right) to ensure balanced handling and performance. The right side counterpart is 55360-3M501.
• Always discharge the air pressure before removing rear air springs using the GDS Tablet. The air discharge can be found under: "S/W Management -> Air Filling/Venting Setup -> Venting Air Springs/Struts -> Venting Rear Spring (RL + RR)".
• When handling the new air springs, take care to not excessively bend or damage the air lines.
• Before installation, inspect all air lines and fittings for cracks, kinks, or other damage.
• After installation, the air suspension system should be professionally tested for leaks using diagnostic equipment.
• Inspect related components including the air compressor, valve block, and ride height sensors for wear or damage.

LANDNOVO — Precision | Guaranteed | Durability

Experience the Landnovo difference. Every component is designed with British precision, manufactured to the highest standards, and backed by our commitment to quality. Restore your Hyundai's signature ride with confidence.

Important: Air suspension systems operate under high pressure. Professional installation is strongly recommended to ensure proper fitment, safety, and system performance. Before replacing the air spring, verify there are no leaks elsewhere in the system. Any leak compromises the functioning of components such as the suspension compressor.