

The Moroso 63781 is a fabricated aluminum coolant expansion tank that Moroso describes as a direct bolt-in replacement for the stock tank. It fits the 1999-2005 Mazda Miata (NB). A billet aluminum cap is included.
Fitment: 1999-2005 Mazda Miata (NB), all submodels.
Part number: Moroso 63781
This Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1999-2005 | Mazda | Miata | All |
Garage 56 believes so strongly in the products we sell that every item comes with a full 365-day replacement gurantee - regardless of the manufacturer warranty timeline.
In-stock orders placed before 1pm EST ship same day. All qualifying orders of $56 or more ship free. Flat-rate and expedited shipping options are available at checkout.
Items marked as "Special Order" are available for shipment direct from the manufacturer - also known as "drop shipping". In most instances we are able to ship directly to you however, in limited circumstances we will need to order the item into our warehouse before we are able to dispatch to you. In all cases, your form of payment will not be finalized until we confirm availability of all Special Order items - place your order with confidence!
