The Moroso for Universal Coolant Expansion Tank Sight Tube with High Pressure Cap is a high-quality aluminum sight tube designed for car and truck parts. This performance part by Moroso Performance Products, specifically the MOR Tanks, is a reliable and durable option for enhancing the braking system of your vehicle. The sight tube, with the manufacturer part number 63773, allows for easy monitoring of the coolant level and ensures optimal performance under high pressure conditions. Upgrade your braking system with this essential accessory for improved safety and efficiency on the road.