Mishimoto 11+ Ford 6.7L Powerstroke Secondary Expansion Tank - Micro-Wrinkle Black

The Mishimoto 11+ Ford 6.7L Powerstroke Secondary Expansion Tank is an all-aluminum replacement designed to enhance the durability and cooling capacity of your Super Duty's secondary cooling system. Constructed from aircraft-grade aluminum and available in a micro-wrinkle black powder coat, this tank replaces the original plastic component to prevent cracking and shattering over time. It features internal baffles to prevent coolant aeration and a sight glass for easy level checks. With a 15.65-percent increased coolant capacity, it improves heat dissipation and system reliability, backed by Mishimoto’s lifetime warranty for long-term peace of mind.

Designed for 2011 and newer Ford F-250 and F-350 Super Duty trucks equipped with the 6.7L Powerstroke engine, this secondary expansion tank is a direct bolt-on upgrade. It is intended for use in heavy-duty applications, including towing and off-road driving, where reliable cooling is critical. The kit includes the aluminum tank and necessary mounting hardware, ensuring a straightforward installation. This component helps maintain optimal coolant levels and temperature control, supporting the engine’s performance and longevity under demanding conditions.