IAG Revolve Engine Oil Fill Cap w/ Anodized Color Accent for 02-26 WRX, 04-21 STI, 05-09 LGT, 04-08 FXT, 13-26 BRZ

Get rid of the dull yellow plastic under your Subaru’s hood and upgrade your engine bay with the IAG Revolve Engine Oil Fill Cap. Compatible with 2002-2026 WRX, 2004-2021 STI, 2005-2009 LGT, 2004-2008 FXT, and 2013-2026 BRZ Subaru models, this sleek black aluminum cap combines functionality and style, offering a dependable seal against the oil filler neck while adding a refined, custom look.

Designed for versatility, the IAG Revolve Engine Oil Fill Cap features a removable plug that can be replaced with an optional -10AN fitting. This allows you to run breather lines to a catch can such as our drag catch can, making it an ideal choice for those looking to improve crankcase ventilation or integrate a drain-back feature into a custom setup.

IAG Revolve Engine Oil Fill Cap outperforms Subaru’s factory plastic cap, which is prone to wear and failure due to the extreme temperatures under the hood. Made from precision-machined 6061 billet aluminum, our caps offer superior strength and durability. It features a sleek black anodized finish, providing enhanced corrosion resistance and a high-end appearance.

At the center of the IAG Revolve Engine Oil Fill Cap is a sleek anodized aluminum insert, available in your choice of silver, red, blue, black, gold, or purple. The insert is laser-etched to reveal a universal oil 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.

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 where applicable 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.