Arnott VB-3621 Air Suspension Solenoid Valve Unit - Front

Arnott VB-3621 Air Suspension Valve Block

The Arnott VB-3621 is a direct replacement air suspension solenoid valve block for vehicles with front air suspension control. It is built with quality O-rings and electrical components to match OE-level function and restore proper air distribution from the compressor to the air struts or air springs.

Compatible with select Jaguar I-Pace and Land Rover Defender, Discovery, Range Rover Velar, Range Rover, and Range Rover Sport applications, this valve block addresses common air suspension faults caused by leaking seals or moisture-related electrical wear.

Key Features

• Direct replacement air suspension solenoid valve unit
• Specific fit design for confirmed vehicle applications
• 3-port, 1-connector configuration with female connector
• Pin terminal type with 3 terminals
• Rectangle connector shape for OE-style integration
• Standard grade replacement for front suspension systems
• Arnott VB-3621 part number for easy identification

Detailed Description

The Arnott VB-3621 air suspension solenoid valve block regulates air flow from the compressor to the vehicle’s air struts or air springs. Over time, valve block O-rings can dry out and leak, which can cause the compressor to cycle excessively. Moisture intrusion can also degrade the electrical solenoid components and create additional suspension control problems. This replacement valve block is engineered to meet or exceed original equipment expectations using durable materials selected for long-term service.

This part cross-references LR037081 and LR176325 for the same application. It is a practical replacement for front air suspension systems on the Jaguar I-Pace, Land Rover Defender, Discovery, Range Rover Velar, Range Rover, and Range Rover Sport. The Arnott VB-3621 is designed for specific-fit applications rather than universal use.

What It Is Used For

• Restoring proper air distribution to front air struts or air springs
• Correcting air leaks caused by worn valve block O-rings
• Reducing compressor overwork from pressure loss in the suspension system
• Addressing electrical solenoid wear caused by moisture exposure
• Replacing a failing front air suspension valve block on supported vehicles

Installation Notes and Tips

Verify the connector style, terminal count, port count, and front position before installation. Inspect the air lines, fittings, and surrounding suspension components for leaks or contamination before installing the new valve block. Proper diagnosis is important because compressor wear, air spring leaks, and valve block failure can produce similar symptoms.

Fits 2019-2025 Jaguar I-Pace, front. Fits 2020-2025 Land Rover Defender 110, front. Fits 2023-2025 Land Rover Defender 130, front. Fits 2021-2025 Land Rover Defender 90, front. Fits 2017-2025 Land Rover Discovery, front. Fits 2018-2025 Land Rover Range Rover Velar, front. Fits 2013-2022 Land Rover Range Rover, front. Fits 2014-2022 Land Rover Range Rover Sport, front.

Quality Assurance

Arnott manufactures this valve block as an OE-style replacement using quality materials, including O-rings and electrical components, to support reliable suspension operation in confirmed applications.