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Mishimoto MMTS-RX8-04L Racing Thermostat for Mazda - RX-8 2004-2010

(Toyota Sienna 1998-2003; Mazda RX-8 2004-11, Protege 1999-2003, 626 1993-2002, 2 2011-13, MPV 1989-98, 2002, MX-6 1993-97, Millenia 1995-2002 + 8 more models)

Part of: Mishimoto Racing Thermostat

Other options in this family: Mishimoto MMTS-350Z-03L Mishimoto MMTS-MUS8-11 Mishimoto MMTS-370Z-10L Mishimoto MMTS-350Z-07 Mishimoto MMTS-E90-07

Manufacturer

Picture for manufacturer Mishimoto

Part Number

MMTS-RX8-04L
21 reviews
Sale Price

$68.95

In Stock (10+)

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Usually delivered within 2 days

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Product Details

The Mishimoto MMTS-RX8-04L racing thermostat is engineered to provide superior cooling performance for the 2004-2010 Mazda RX-8's high-revving rotary engine. This low-temperature thermostat opens at 169°F compared to the factory 180°F unit, allowing coolant to flow through the engine sooner for more efficient heat management.

Key Features:

  • Opens at 169°F for improved cooling efficiency
  • Direct fit replacement for 2004-2010 Mazda RX-8
  • Helps maintain lower engine temperatures during spirited driving and track use
  • Reduces risk of overheating on hot days or during demanding conditions
  • Precision-engineered for reliable performance
  • Backed by Mishimoto Lifetime Warranty

Whether you're tracking your RX-8 or simply want better thermal management for daily driving, this racing thermostat delivers consistent cooling performance to protect your rotary engine. The lower opening temperature ensures your cooling system responds faster to heat buildup, maintaining optimal operating temperatures even under load.

Products specifications

Fits

Toyota Sienna 1998-2003; Mazda RX-8 2004-11, Protege 1999-2003, 626 1993-2002, 2 2011-13, MPV 1989-98, 2002, MX-6 1993-97, Millenia 1995-2002, MX-3 1992-94; Pontiac Vibe 2003-08; Suzuki Grand Vitara 2001-03; Ford Probe 1993-97 + 4 more models

Prop 65

WARNING: Cancer and Reproductive Harm - www.p65warnings.ca.gov

Material

Aluminum

TechSpec OEM Activation Temperature (F)

180

Install Difficulty

2

TechSpec Includes

(1) Mishimoto Thermostat--Mishimoto Lifetime Warranty

TechSpec Engine Codes

13B-MSP--1.5L I4--1.8L K8--2.0L FS--2.3L Miller cycle--2.5L KL-DE

TechSpec Mishimoto Activation Temperature (F)

169

TechSpec Applications

1993-2002 Mazda 626--1995-2002 Mazda Millenia--1996-1998 Mazda MPV--1992-1993 Mazda MX-3--1993-1997 Mazda MX-6--1993-2003 Mazda Protege--2004-2011 Mazda RX-8

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