Land Rover Brake Master Cylinder Reservoir - Genuine Land Rover LR135944

Product Information

A brake master cylinder reservoir stores brake fluid and feeds it to the front and rear brakes of a car. A failing brake master cylinder can cause a number of issues, including inconsistent brake performance, low fluid levels, and/or a low pedal.

• Brake pedal feels spongy: When the brake pedal feels soft or squishy, it could indicate air or moisture in the brake system. Low brake fluid levels, leaks, or improper bleeding can cause this.
• Brake fluid is contaminated: If the brake fluid is dark brown or black, it could be contaminated. This can happen when the rubber seals on the master cylinder wear out and break down.

About Genuine Land Rover

The same parts Land Rover used to build your vehicle are sold as replacement parts under the “Genuine Land Rover” brand. These are manufactured under Land Rover’s direction, guaranteeing top quality. As you’d expect, they also carry a premium price and are sold exclusively through the Land Rover dealership network.

Genuine Land Rover parts trace their origins back to the earliest days of the brand in 1948, when Rover engineers built the first Series I using robust, serviceable components designed for durability in harsh environments. Over the decades, Land Rover established partnerships with leading European suppliers to ensure consistent quality and performance. This tradition continues today, with Genuine Land Rover parts representing the official replacement components engineered to the same specifications as those used on the production line.

What many owners don’t realize is that Land Rover doesn’t manufacture most of these parts themselves. Instead, they design the components, contract trusted suppliers to produce them, and then verify the quality. Many of these suppliers have partnered with Land Rover for decades. In the industry, they’re known as OEMs (Original Equipment Manufacturers)—brands you probably recognize, including Lemforder, ZF, Sachs, Bosch, Valeo, Zimmermann, Siemens VDO, Corteco, and more. It’s not unusual to open a Genuine Land Rover box and find one of these brands inside—just re-badged with a Land Rover logo.

On our site, look for OE tags on product pages to quickly spot parts that come straight from the original manufacturers. Choosing these can save you a significant amount compared to buying them in Genuine packaging. For more details on how to identify OE and OEM parts, check out our OE Academy.