# Mishimoto 99-05 Mazda Miata NB 177 Degree Racing Thermostat

The Mishimoto racing thermostat for the 99-05 Mazda Miata NB will promote greater cooling efficiency in your stock or modified Miata. Once the engine is fully warmed up, Mishimoto's Miata NB racing thermostat will open at a lower temperature than standard thermostats. This allows coolant to flow through the engine sooner, which reduces and maintains cooler engine temperatures. The Mishimoto 99-05 Miata NB racing thermostat is the perfect addition to your street or track Miata and is a direct replacement for the stock thermostat. This thermostat includes the signature Mishimoto Lifetime Warranty.

-   Lower activation temperature allows coolant to flow through the engine earlier, maintaining lower temperatures (Mishimoto thermostat activates at 177F vs. stock 195F)
-   Mishimoto Lifetime Warranty
-   N/A

This Part Fits:

Year

Make

Model

Submodel

1999

Mazda

Miata

10th Anniversary

1999-2005

Mazda

Miata

Base

2000-2005

Mazda

Miata

LS

2004-2005

Mazda

Miata

Mazdaspeed

2000-2003

Mazda

Miata

SE

2003

Mazda

Miata

Shinsen

1995

Mazda

Protege

DX

1995

Mazda

Protege

ES

1995

Mazda

Protege

LX

## Details

- **Price:** 117.87 CAD
- **Vendor:** Mishimoto
- **Type:** Thermostats

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 117.87 CAD | In stock |

## Images

- Photo - Primary
- Photo - Primary
- Photo - Primary
- Photo - Primary
- Photo - Primary
- Photo - Close Up
- Photo - Close Up
- User 1
- Photo - out of package
- User 1

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> Source: [Standard Auto Part](https://www.standardautopart.com/products/mishimoto-99-05-mazda-miata-nb-177-degree-racing-thermostat)
> Updated: 2026-06-27