Mishimoto 99-05 Mazda Miata NB 177°F Racing Thermostat

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SKU: MISMMTS-MIA-99
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Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

  • 225 = Tire width in mm
  • 45 = Aspect ratio (height as % of width)
  • R17 = Rim diameter in inches

Product Details

Product Description
Part Numbers
Sizing & Fit

About Mishimoto

Mishimoto is the modern leader in performance cooling — aluminum radiators, oil coolers, intercoolers, and silicone hoses for street, track, and tuner builds. Lifetime warranty on every Mishimoto product, with engineering tested at Bondurant and on track teams.

Mishimoto 177°F Racing Thermostat for 1999-2005 Mazda Miata NB

Upgrade your 1999-2005 Mazda Miata NB with the Mishimoto 177°F Racing Thermostat, designed to significantly enhance your cooling system's efficiency. This high-performance thermostat opens at 177°F (80.5°C), which is lower than the stock unit, allowing coolant to circulate through the engine earlier. This proactive flow helps maintain optimal engine temperatures, reducing the risk of overheating during spirited driving, track sessions, or in hot weather conditions.

Key Features and Benefits:

  • Optimized Opening Temperature: Opens at 177°F (80.5°C) for improved coolant circulation and heat management.
  • Direct Fit for NB Miata: Engineered as a perfect replacement for the OEM thermostat in 1999-2005 Mazda Miata NB models.
  • Enhanced Cooling Performance: Crucial for maintaining stable engine temperatures in modified or high-performance applications.
  • Durable and Reliable: Constructed with premium materials to withstand demanding engine conditions and ensure long-term performance.
  • Prevents Overheating: Actively works to keep your engine running cooler, protecting vital components.

The Mishimoto Racing Thermostat is an ideal addition for any Miata enthusiast seeking to improve their vehicle's reliability and performance. By ensuring your engine operates within a more controlled temperature range, you can expect better power delivery and extended engine life. This thermostat is a simple yet effective modification that delivers noticeable benefits.

Invest in superior cooling for your Mazda Miata NB. Get the Mishimoto 177°F Racing Thermostat today at GGCRACING.

Vehicle Fitment

Years Make Model Trim
1999 Mazda Miata 10th Anniversary
1999-2005 Mazda Miata Base
2000-2003 Mazda Miata SE
2000-2005 Mazda Miata LS
2003 Mazda Miata Shinsen
2004-2005 Mazda Miata Mazdaspeed
1995 Mazda Protege DX
1995 Mazda Protege ES
1995 Mazda Protege LX

Product Details

Product Description
Part Numbers
Sizing & Fit

About Mishimoto

Mishimoto is the modern leader in performance cooling — aluminum radiators, oil coolers, intercoolers, and silicone hoses for street, track, and tuner builds. Lifetime warranty on every Mishimoto product, with engineering tested at Bondurant and on track teams.

Mishimoto 177°F Racing Thermostat for 1999-2005 Mazda Miata NB

Upgrade your 1999-2005 Mazda Miata NB with the Mishimoto 177°F Racing Thermostat, designed to significantly enhance your cooling system's efficiency. This high-performance thermostat opens at 177°F (80.5°C), which is lower than the stock unit, allowing coolant to circulate through the engine earlier. This proactive flow helps maintain optimal engine temperatures, reducing the risk of overheating during spirited driving, track sessions, or in hot weather conditions.

Key Features and Benefits:

  • Optimized Opening Temperature: Opens at 177°F (80.5°C) for improved coolant circulation and heat management.
  • Direct Fit for NB Miata: Engineered as a perfect replacement for the OEM thermostat in 1999-2005 Mazda Miata NB models.
  • Enhanced Cooling Performance: Crucial for maintaining stable engine temperatures in modified or high-performance applications.
  • Durable and Reliable: Constructed with premium materials to withstand demanding engine conditions and ensure long-term performance.
  • Prevents Overheating: Actively works to keep your engine running cooler, protecting vital components.

The Mishimoto Racing Thermostat is an ideal addition for any Miata enthusiast seeking to improve their vehicle's reliability and performance. By ensuring your engine operates within a more controlled temperature range, you can expect better power delivery and extended engine life. This thermostat is a simple yet effective modification that delivers noticeable benefits.

Invest in superior cooling for your Mazda Miata NB. Get the Mishimoto 177°F Racing Thermostat today at GGCRACING.

Vehicle Fitment

Years Make Model Trim
1999 Mazda Miata 10th Anniversary
1999-2005 Mazda Miata Base
2000-2003 Mazda Miata SE
2000-2005 Mazda Miata LS
2003 Mazda Miata Shinsen
2004-2005 Mazda Miata Mazdaspeed
1995 Mazda Protege DX
1995 Mazda Protege ES
1995 Mazda Protege LX

Product Details

Product Description

About Mishimoto

Mishimoto is the modern leader in performance cooling — aluminum radiators, oil coolers, intercoolers, and silicone hoses for street, track, and tuner builds. Lifetime warranty on every Mishimoto product, with engineering tested at Bondurant and on track teams.

Mishimoto 177°F Racing Thermostat for 1999-2005 Mazda Miata NB

Upgrade your 1999-2005 Mazda Miata NB with the Mishimoto 177°F Racing Thermostat, designed to significantly enhance your cooling system's efficiency. This high-performance thermostat opens at 177°F (80.5°C), which is lower than the stock unit, allowing coolant to circulate through the engine earlier. This proactive flow helps maintain optimal engine temperatures, reducing the risk of overheating during spirited driving, track sessions, or in hot weather conditions.

Key Features and Benefits:

  • Optimized Opening Temperature: Opens at 177°F (80.5°C) for improved coolant circulation and heat management.
  • Direct Fit for NB Miata: Engineered as a perfect replacement for the OEM thermostat in 1999-2005 Mazda Miata NB models.
  • Enhanced Cooling Performance: Crucial for maintaining stable engine temperatures in modified or high-performance applications.
  • Durable and Reliable: Constructed with premium materials to withstand demanding engine conditions and ensure long-term performance.
  • Prevents Overheating: Actively works to keep your engine running cooler, protecting vital components.

The Mishimoto Racing Thermostat is an ideal addition for any Miata enthusiast seeking to improve their vehicle's reliability and performance. By ensuring your engine operates within a more controlled temperature range, you can expect better power delivery and extended engine life. This thermostat is a simple yet effective modification that delivers noticeable benefits.

Invest in superior cooling for your Mazda Miata NB. Get the Mishimoto 177°F Racing Thermostat today at GGCRACING.

Vehicle Fitment

Years Make Model Trim
1999 Mazda Miata 10th Anniversary
1999-2005 Mazda Miata Base
2000-2003 Mazda Miata SE
2000-2005 Mazda Miata LS
2003 Mazda Miata Shinsen
2004-2005 Mazda Miata Mazdaspeed
1995 Mazda Protege DX
1995 Mazda Protege ES
1995 Mazda Protege LX

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