Cap Brake Oil Reservoir Tank.
A cap / lid / cover used to seal / close off the reservoir fill opening of a brake master cylinder reservoir to contain brake fluid.

• Seals your brake master cylinder reservoir
• Helps protect brake fluid from moisture and debris
• Replace when broken or missing

Your Nissan's braking system includes a brake master cylinder that contains the brake fluid. While the reservoir holds the fluid, your Nissan Brake Master Cylinder Reservoir Cap helps protect the fluid from contaminants and stop it from splashing out or leaking.

Most brake fluids take in moisture from the air. This moisture can lower the boiling point of your brake fluid and negatively impact the performance of your brakes. The Brake Master Cylinder Reservoir Cap helps block this moisture and prolong the life of your brake fluid. Driving without a Brake Master Cylinder Reservoir Cap might be tempting, but it's not recommended for this reason.

If something's wrong with your Brake Master Cylinder Reservoir Cap, you might not notice until it's too late. To help make certain the cap is in position and working correctly, it's a good idea to visually inspect it every now and then. Keep an eye out for cracks and make sure it's sealing the reservoir completely. After a brake fluid change or brake maintenance service, you should double-check that your mechanic remembered to replace the cap correctly.

When your Brake Master Cylinder Reservoir Cap is missing or damaged, it needs to be replaced. Without it, you chance contaminants and moisture entering your brake fluid and potentially leading to brake failure. It's easy to replace the cap on your own — simply tighten it onto the reservoir. However, it's also a good idea to take your Nissan into the nearest service center to check the moisture in your brake fluid, especially if you're not sure how long your reservoir has been exposed to the elements. Typically, your brake fluid should have no more than 3% water.

Don't jeopardize your brakes. Shop genuine OEM parts to find a Brake Master Cylinder Reservoir Cap that fits your Nissan.

The Brake Master Cylinder Reservoir Cap, part 46020AL600, is suitable for Nissan Titan 2004-2015. Find more information under the What This Fits tab.