Killer B Motorsport Coolant Breather Fitting Assembly - 2015-2021 Subaru WRX

The Coolant Breather Fitting Assembly is a durable aluminum replacement for the factory OEM plastic piece on the Subaru WRX.

RallySport Direct proudly carries a great selection of performance upgrades brought to you by the leaders in the Subaru fabrication industry, Killer B Motorsport.

This is the Killer B Motorsport Coolant Breather Fitting Assembly. On the FA20 WRX engine, the OEM breather/coolant fitting is made using plastic materials that can degrade over time, and eventually create a leak. And because of the multiple heat cycles, the OEM unit can break when performing maintenance that required removing or replacing the lines during an AOS install. Killer B has designed a proper solution by designing an aluminum unit that will provide you with long-lasting, and leak-free reliability.

HIGHLIGHTS:

• Aluminum construction
• Direct replacement for the failure-prone OEM plastic unit
• Designed with a larger breather port over the restrictive OEM design
• Removable fittings for custom installations or applications
• Leak-free fail-free design