TRW Brake Master Cylinder (SJC100432) for Land Rover Discovery 2 High quality replacement brake master cylinder from TRW at a fraction of the cost of genuine. The seals on the brake master cylinder are often the first to fail. The brake fluid absorbs water that loosens tiny particles while passing through your brake lines that can damage your master cylinder. If your brakes are not working properly and you suspect it's the brake master cylinder, replace it immediately. Fits the Land Rover Discovery 2 (1999-2002) Part number SJC100432