Dual Coolant Tank - Expansion/Recovery

The MOROSO Dual Coolant Tank (part number 63775) is an expansion and recovery tank designed to manage coolant overflow and maintain proper system pressure in high-performance engine builds. This aluminum recovery tank with black powder coat finish serves as a critical component in custom cooling systems where precise coolant level management and overflow capacity are essential to engine longevity and performance consistency.

The tank accommodates a 1-1/4 quart capacity and features 3/8-inch NPT female inlet and 1/2-inch NPT female outlet connections, allowing flexible plumbing integration into existing or custom cooling architectures. The dual-function design captures coolant expansion as engine temperature rises, reducing pressure spikes on radiators and hoses while providing a recovery point when the system cools. The aluminum construction with durable black powder coat finish resists corrosion and integrates seamlessly into engine bays requiring both functional performance and aesthetic coherence. At 3.6 pounds with compact dimensions of 10.4 x 7.85 x 12.5 inches, the tank installs in space-constrained applications without requiring extensive plumbing reconfiguration.

This recovery tank suits builders and enthusiasts running modified cooling systems where OEM overflow bottles prove inadequate. It is equally valuable in street rods, race engines, and custom marine powerplants where coolant stability under sustained high-load operation directly impacts reliability. The universal mount design and standard NPT threading provide broad compatibility across domestic and import platforms, making the MOROSO 63775 a practical solution for anyone engineering a robust, custom-tuned cooling system.

Coolant recovery tanks are foundational to engine health in performance applications—they absorb thermal expansion, eliminate air pockets, and preserve coolant purity by preventing atmospheric contamination. The MOROSO design delivers this function in a compact, durable format that meets the technical demands of serious builders and tuners.