Land Rover Discovery 4 L319 Brake Servo Booster Master Cylinder AH22-2B195-BB

The Land Rover Discovery 4 L319 brake booster is an original component of the braking system, connecting the brake servo to the master brake cylinder. This component from the servos and brake force regulators category ensures stable transfer of brake pedal pressure to system pressure, resulting in predictable and safe deceleration in a heavy-duty off-road SUV.

Specifications and technical data

• SKU: RHD-AH22-2B195-BB
• Mark: Land Rover
• Condition: Used
• OEM Part Number: AH22-2B195-BB
• Substitutable numbers: AH22-2B195-BB, AH222B195BB
• Category: Brake Servos

Purpose and Role in the Braking System

The Discovery 4 L319 brake booster is responsible for increasing braking force while maintaining moderate pedal pressure. The servo unit integrated with the master cylinder works with engine vacuum to:

• reduce the force required to press the brake pedal,
• ensure repeatable braking characteristics under various vehicle loads,
• maintain stable pressure in the brake circuits during hard braking.

This is a crucial element for the proper functioning of the entire system, especially in 4x4 vehicles, those towing trailers, or those used off-road.

Original Land Rover Part – Fit and Compatibility

The presented brake servo unit comes from the original Land Rover parts line, which means maintaining factory operating parameters and full compatibility with the Discovery 4 L319 model's construction. Original manufacturing translates to:

• correct positioning of vacuum ports and hydraulic connections,
• compatibility with the factory mounting on the bulkhead of the engine compartment,
• appropriate booster characteristics tailored to the vehicle's weight and geometry.

This allows the component to be used as a direct replacement for the factory-fitted unit, without the need for installation modifications.

Condition, Inspection, and Preparation for Reinstallation

The component is from a disassembly and is offered as a used part. Such elements are often chosen for servicing older Discovery 4 models when maintaining the original specification at a reasonable repair cost is a priority. Before being offered for sale, the part is verified for:

• body seal integrity and absence of visible mechanical damage,
• condition of vacuum ports and hydraulic connections,
• absence of excessive corrosion in mounting areas.

This scope of inspection allows for an assessment of the component's suitability for further use in the vehicle.

Benefits of Using a Used Brake Servo

Using an original, used servo unit with a master cylinder for the Land Rover Discovery 4 L319 is a solution that combines factory fit with reduced repair costs. In practice, this means:

• maintaining the braking characteristics intended by the manufacturer,
• no compatibility issues with accessories and lines,
• the possibility of economical brake system repair while maintaining a high level of safety.

To maximize the potential of parts from disassembly and extend their service life, it is worth consulting the guide how to effectively extend the lifespan of used car parts, which describes practical principles for maintaining disassembled components.

Summary

The brake booster integrated with the master cylinder for the Land Rover Discovery 4 L319 is a functional component from the servos and brake force regulators group, intended for users who expect factory fit and predictable braking system operation. Choosing an original, used part allows for maintaining the vehicle's proper braking parameters while reducing service costs, which is particularly important for complex off-road SUVs.