Surge Tank Cap for Freightliner Cascadia – Cooling System Pressure Cap – Compatible with OEM BHTW3678001

This Surge Tank Cap is engineered for Freightliner Cascadia models, providing dependable cooling system pressure control and consistent performance. Built from durable materials to handle demanding operating conditions, it supports stable engine temperature and reliable system operation. Designed as a direct replacement for OEM BHTW3678001, this cap ensures accurate fitment and long-lasting durability for commercial truck maintenance and repair applications.