Mishimoto Racing 76°C Thermostat for RX-8

Rated 5.00 out of 5 based on 2 customer ratings
(2 customer reviews)

£50.00 £45.00 (inc VAT)

At home at the track of on the street This thermostat will open a a lower coolant temperature compares to Mazda’s OEM thermostat.

Operating temperatures 82°C vs 76°C

1 in stock (can be backordered)

Purchase this product now and earn 45 ER Points!


The Mazda RX-8 is well known for its high-revving rotary engine and well-balanced chassis. An overheating engine can result in a ruined track day or a damaged engine.

A Mishimoto racing thermostat is the ideal upgrade for improved cooling reliability and efficiency.
Mishimoto racing thermostats promote greater cooling efficiency by significantly decreasing high engine temperatures. Once the engine is fully warmed up, the Mishimoto low-temperature racing thermostat will open at a lower temperature (76°C) compared to standard thermostats (82°C). This allows coolant to flow through the engine sooner, thus reducing and maintaining cooler engine temperatures. As with all our products, this thermostat includes the Mishimoto lifetime warranty.

Ideal for all you track day nutters but equally at home on the street.

This is one of our optional upgrades during customer engine rebuilds.

Additional information


04-11 Mazda RX-8
93–02 Mazda 626
95–02 Mazda Millenia
96–98 Mazda MPV
92–93 Mazda MX-3
93–97 Mazda MX-6
93–03 Mazda Protage

Activation Temprature

Mazda OEM 82°C/180°F
Mishimoto 76°C/169°C

Mishimoto Lifetime Warranty

Mishimoto Automotive (“Mishimoto”) warrants their products under this lifetime limited warranty policy (“Warranty Policy”). This Warranty Policy applies solely to: (i) Mishimoto Products purchased directly from Mishimoto or Mishimoto authorised dealers (each a “Mishimoto Product” and collectively, the “Mishimoto Products”) and (ii) the original purchaser of such Mishimoto Product (“Purchaser”). This Warranty Policy is non-transferable and all claims under this Warranty Policy must be accompanied by the original sales receipt. The terms and conditions of this Warranty Policy are subject to change by Mishimoto at any time without notice.

For Mishimoto\'s complete warranty policy, please follow this link

2 reviews for Mishimoto Racing 76°C Thermostat for RX-8

  1. Rated 5 out of 5

    DriftIn, s.r.o. (verified owner)

    Definitively a must as it can sort all kinds of issues with overheating. Sometimes it feels almost like a car cooling system cannot go over 68 degrees Celsius with this thermostat in it. Anyway this is a bargain everyone with RX-8 need to have.

  2. Rated 5 out of 5

    soishiro.factory (verified owner)

    After an overheating before summer, I upgraded the setup with this thermostat which avoids this kind of critical situation.
    76°C will allow to open the regulation circuit earlier, and it is a must have for anyone who wants to preserve his engine from overheating.

Only logged in customers who have purchased this product may leave a review.

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