IAG Revolve Brake Fluid Reservoir Cap (02+ WRX, 04-21 STI, 13+ BRZ)

TRANSFORM YOUR ENGINE BAY
Say goodbye to the unattractive yellow factory cap—upgrade your engine bay with the IAG Revolve Brake Fluid Reservoir Cap for a cleaner, more refined look. Designed for 2002-2024 WRX, 2004-2021 STI, 2005-2009 LGT, 2004-2008 FXT, and 2013-2024 BRZ Subaru models, this attractive aluminum cap provides an exact factory fit on the reservoir while enhancing your engine bay with a sleek, custom appearance.

DESIGNED FOR DURABILITY
The IAG Revolve Brake Fluid Reservoir Cap is a major upgrade over Subaru’s factory plastic cap, which can degrade over time due to extreme under-hood temperatures. CNC-machined at our facility in Maryland from 6061 billet aluminum, this cap offers superior durability and strength. The sleek black anodized finish is resistant to corrosion while giving your engine bay a high-end appearance.

CUSTOMIZE YOUR CAP
At the center of the IAG Revolve Brake Fluid Reservoir Cap is an anodized aluminum insert, available in your choice of silver, red, blue, black, gold, or purple. The insert is laser-etched to reveal a universal brake fluid symbol, but can be flipped to show the solid color. The inserts are easy to swap in seconds, thanks to the accessible design inside the cap—just use a small tool to pop the insert out and choose your preferred side.

COMPLETE THE LOOK
For a more cohesive look under the hood, upgrade to an IAG Revolve Engine Bay Dress-Up Cap Kit. This complete set includes the Oil Fill, Brake Fluid, Coolant Reservoir, Washer Fluid, and Power Steering Reservoir Caps in your preferred color. If you want a custom touch, each cap is also available individually, allowing you to mix and match for a unique style.