Genuine JLM1907 Brake Accumulator Sphere for Jaguar XJ6 XJ12 XJS

The Genuine JLM1907 is an OEM brake accumulator sphere designed for Jaguar vehicles equipped with hydraulic power-assisted ABS brake systems. This critical component stores pressurized hydraulic fluid to maintain consistent brake boost and provide emergency braking capability when the engine is not running.

Key Features:

• Genuine OEM Jaguar part, built to original factory specifications
• Pre-charged nitrogen accumulator sphere maintains proper brake system pressure
• Provides reserve brake pressure for multiple pedal applications with engine off
• Includes mounting O-ring for proper installation and sealing
• Spherical design with internal diaphragm separating nitrogen and hydraulic chambers
• Essential component for proper ABS and power brake system operation

Function: The brake accumulator acts as a hydraulic energy storage device, maintaining system pressure between 1,700-2,100 PSI to ensure consistent brake assist. The nitrogen-charged sphere absorbs pressure fluctuations and provides backup braking power in the event of pump failure, typically allowing 3-5 full brake applications with the engine off.

Common failure symptoms: When a brake accumulator fails, drivers may experience a red brake warning light, ABS warning light illumination, reduced brake assist, or loss of brake pressure when the engine is not running. The original accumulator typically provides reliable service for many years under normal conditions.