Coolant Expansion Tank - Universal

The Coolant Expansion Tank - Universal by MOROSO is an essential cooling system component designed for custom and performance automotive builds where OEM reservoirs don't fit or aren't suitable. This 1-1/4 quart recovery tank captures coolant overflow and prevents air from entering the cooling system, maintaining proper coolant levels and system pressure during operation and thermal cycling. Whether you're building a street rod, installing a custom engine bay layout, or upgrading a performance vehicle, this universal tank provides the flexibility needed to integrate with non-standard cooling configurations.

Constructed from lightweight aluminum with a natural finish, the Coolant Expansion Tank features a 3/8 inch NPT female inlet and 1/2 inch NPT female outlet, allowing straightforward plumbing integration into most custom cooling circuits. The aluminum construction resists corrosion while remaining durable under repeated thermal stress, and the compact dimensions (7.3 x 4 x 8.6 inches) enable installation in tight engine bays where space is at a premium. NPT (National Pipe Thread) connections are industry standard, ensuring compatibility with readily available hose fittings and adapters used in performance cooling systems.

Custom builders, hot rod fabricators, and performance enthusiasts benefit most from this universal design, which works across multiple engine platforms and cooling system configurations without requiring modification. The 1-1/4 quart capacity suits most small-block and mid-sized engine applications where a modest overflow reservoir is sufficient. Installation requires basic plumbing skills and NPT-compatible fittings; mount the tank in an accessible location, route the inlet line from the cooling system high point, and connect the outlet to the radiator return for proper system function and air elimination.