1999-2004 Discovery II ACE Actuator and Arm Assembly

Maintain the superior handling and stability of your Land Rover with this OEM ACE (Active Cornering Enhancement) Actuator and Arm Assembly, designed specifically for the 1999–2004 Discovery Series II. This assembly includes ACE Actuator (Part # RQK100000) and ACE Sway Bar Arm (Part # ANR6550)—both essential components of Land Rover’s advanced hydraulic suspension system.

The ACE system actively reduces body roll during cornering, improving ride comfort, control, and off-road performance. If you're experiencing poor handling, leaks, or warning lights related to your ACE system, replacing the actuator and arm assembly can restore factory-like performance.

These are genuine OEM Land Rover parts, not aftermarket substitutes—ensuring precise fitment, full compatibility with hydraulic lines, and dependable long-term durability.

Key Features:

• Fits: 1999, 2000, 2001, 2002, 2003, 2004 Land Rover Discovery II
• System: ACE (Active Cornering Enhancement)
• Includes:
• ACE Actuator – Part # RQK100000
• ACE Arm – Part # ANR6550
• OEM Land Rover Parts: Designed to meet factory specifications
• Function: Actively controls anti-roll bars for better handling and stability
• Condition: Pre-owned, fully tested and inspected
• Installation: Direct replacement – bolts to original ACE system mount points
• Use Case: Ideal for suspension system repairs, fluid leaks, or warning light resolution

Vehicle Compatibility:

• Discovery II 1999–2004 (Equipped with ACE system)