Details

• Brand:

  

  

• SKU:

  7R3Z-2162-A

• Other Names:

  Reservoir Cap, Cap Filler, BRFC2

• Description:

  This is a Genuine Ford brake master cylinder reservoir cap, part number 7R3Z-2162-A, for 2005-2014 Ford Mustang. Ford catalog name is Cap - Reservoir, part of the brake system group. This cap seals the top of the brake fluid reservoir on the master cylinder, keeping moisture, dirt, and contaminants out of the brake fluid while the integrated diaphragm follows the fluid level as it drops with normal brake pad wear, preventing pressure buildup and fluid aeration. Buyers usually need this cap when the original is cracked, when the rubber diaphragm is torn or hardened, when the cap threads or seal are damaged, or when the cap is lost. A compromised cap lets air and moisture reach the brake fluid, which lowers the fluid's boiling point and can lead to a spongy pedal, moisture-related corrosion, and reduced braking performance over time. Despite sharing base number 2162 with an engine oil filler cap variant used on some other applications, this suffix is specifically the brake reservoir cap, so verify the full part number rather than the base alone. Because contaminated or low brake fluid directly affects stopping safety, replace a damaged cap promptly and check the fluid level and condition at the same time, topping up only with the Ford-specified brake fluid. As a Genuine Ford original-equipment part it matches the factory thread, seal, and diaphragm design for a correct sealing fit on the Mustang master cylinder reservoir without modification.

• Notes: Included with reservoir assembly.
• Replaces:

  4R3Z2162AA

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