Radiator 98-05 Mazda Miata NB

The CSF Cooling radiator for 1998–2005 Mazda Miata NB is a direct-fit aluminum replacement designed to restore or upgrade cooling performance in this lightweight sports car. Built with a single-pass design, passenger-side inlet, and driver-side outlet configuration, this radiator integrates seamlessly into the NB platform's cooling system while offering superior heat dissipation compared to original equipment. The polished aluminum construction provides both durability and a clean engine bay appearance for owners prioritizing cooling efficiency and aesthetics.

At 26 inches wide by 2.375 inches deep, this radiator is sized specifically for the Miata NB's compact engine compartment, ensuring proper clearance and fitment without modification. The single-pass core design maximizes coolant flow velocity, reducing temperature stratification and improving heat rejection during sustained driving or track use. Aluminum construction provides a weight advantage over traditional copper-brass units while maintaining thermal conductivity. The 14.6-pound radiator is lightweight enough for performance-minded drivers seeking to reduce unsprung and engine bay mass without sacrificing cooling capacity.

This replacement radiator serves owners facing cooling challenges in high-ambient environments, extended driving sessions, or engine modifications that increase heat load. Miata NB owners upgrading cooling systems for track days, summer touring, or engine tuning benefit from the increased core capacity and efficient flow path. The direct-fit design eliminates the guesswork of aftermarket fitment, making installation straightforward for those rebuilding or refreshing their cooling system. CSF's reputation for precision cooling solutions ensures that this unit meets the demanding requirements of sports car enthusiasts.