Mishimoto MMRT RGR 19P MM Aluminum Expansion Tank Polished (19 23 Mishimoto Ford Focus 3 RS ST Coolant Expansion Tank Focus on Cooling! Mishimoto's Ford Focus ST Radiator R&D, Part 2: A Mishimoto Coolant Expansion Tank Ford Focus ST RS (2013 2019) Black Evasive Motorsports: Mishimoto Aluminum Coolant Expansion Tank (Black. Mishimoto Aluminum Expansion Tank Part #: MMRT RS 16EBK Overview The Mishimoto Aluminum Expansion Tank is a high quality, lightweight coolant reservoir designed to enhance the cooling system of your vehicle. Crafted from durable aluminum, this expansion tank offers improved heat dissipation and a sleek, performance oriented appearance. It is ideal for automotive enthusiasts and tuners seeking to upgrade their cooling setup for better thermal management and a refined engine bay aesthetic. Whether you're building a performance focused vehicle or simply want a reliable, stylish upgrade, this expansion tank provides a practical solution to maintain optimal coolant levels and reduce pressure build up during high stress driving conditions. Key Features This expansion tank combines robust materials and thoughtful design to support your vehicles cooling system. Key features include: Constructed from lightweight, corrosion resistant aluminum for durability and heat transfer Precision machined fittings for secure, leak free connections Enhanced cooling efficiency through improved heat dissipation Stylish anodized finish for a sleek, aftermarket look Easy installation with compatible mounting points Designed to fit a wide range of vehicles with compatible coolant system configurations