Mishimoto Thermostatic Oil Cooler Kit for 1999-2005 Mazda Miata, Silver - MMOC-MIA-99T

Fits 1999-2005 Mazda Miata Base and LS models.

The NB Mazda Miata is a track-day staple, but extended sessions can quickly push oil temperatures beyond safe limits. While the factory liquid-to-liquid cooler is adequate for commuting, it often struggles during spirited driving or on turbocharged applications. The Mishimoto Thermostatic Oil Cooler Kit (MMOC-MIA-99T) provides a robust cooling solution by utilizing an air-to-liquid core and a precision-engineered mounting bracket that doubles as ducting to maximize airflow to the heat exchanger.

This kit features a billet aluminum thermostatic sandwich plate, ensuring oil only flows to the cooler once it reaches operating temperature. This prevents overcooling in colder climates and helps maintain proper viscosity during warm-up. The mounting configuration is designed to keep the cooler away from the front bumper, preserving space for front-mount intercoolers while maintaining a minimal pressure drop across the system.

• Direct fit for 1999-2005 Mazda Miata (NB chassis)
• Reduces oil temperatures by 10°F (5.6°C) in tested conditions
• Billet aluminum thermostatic sandwich plate for optimal temperature regulation
• Pre-made stainless steel braided lines with durable -10AN fittings
• Custom mounting bracket functions as air ducting for increased efficiency
• Silver finish cooler core
• Manufacturer Part Number: MMOC-MIA-99T
• Mishimoto Lifetime Warranty