Mishimoto Racing Thermostat

1986–1995 Ford Mustang GT / Cobra 5.0L V8

Part #: MMTS-MUS-86A

Overview

The Mishimoto Racing Thermostat is designed to enhance your Ford Mustang's cooling system, especially for modified and high-performance applications. Engineered to open at a lower temperature than standard thermostats, this racing thermostat helps maintain optimal engine temperatures during spirited driving, track days, or turbocharged setups. By promoting better coolant flow and reducing high engine temperatures, it supports improved engine reliability, efficiency, and performance.

If you're upgrading your Mustang with aftermarket turbochargers or pushing your engine to higher power levels, maintaining consistent and lower operating temperatures is crucial. The Mishimoto racing thermostat ensures your cooling system responds quickly to temperature changes, helping prevent overheating and thermal stress. Whether you're a street enthusiast or a track day participant, this thermostat provides a reliable solution to keep your engine running cooler and more efficiently.

Key Features

The Mishimoto Racing Thermostat combines advanced engineering with durable materials to deliver superior cooling performance. Its key features include:

• High-quality brass construction for excellent thermal conductivity and durability.
• Lower opening temperature of 82°F (28°C), designed to open sooner than stock thermostats, promoting faster coolant circulation.
• Precision manufacturing ensures a perfect fit and reliable operation in high-performance environments.
• Optimized for turbocharged and modified engines that generate higher heat levels.
• Helps support increased horsepower and torque by maintaining consistent operating temperatures.
• Designed for easy installation with no modifications required.
• Compatible with stock cooling components, making it a straightforward upgrade.
• Ideal for enthusiasts seeking improved cooling efficiency and engine longevity.

Construction & Design

The Mishimoto racing thermostat features a robust brass body that provides excellent heat transfer and resistance to corrosion. Its precision-engineered valve ensures accurate opening at the specified 82°F (28°C), allowing coolant to flow through the engine earlier than standard thermostats. This early activation helps prevent heat buildup during high-demand driving conditions. The thermostat's compact design fits seamlessly into the factory housing, ensuring a secure and leak-free installation. Its durable construction guarantees long-lasting performance even under demanding racing or tuning scenarios.

Installation & Fitment

The Mishimoto Racing Thermostat is a direct bolt-on upgrade for 1986–1995 Ford Mustang GT and Cobra models equipped with the 5.0L V8 engine. Installation is straightforward and requires no cutting, drilling, or complex modifications. Simply drain the coolant, remove the stock thermostat, and replace it with the Mishimoto unit using standard hand tools. It is recommended to refill and bleed the cooling system after installation to ensure proper operation. No tuning or additional adjustments are necessary, making this a hassle-free upgrade for performance-minded Mustang owners.

What's Included

• Mishimoto Racing Thermostat (82°F opening temperature)
• Installation instructions

Ideal For

• Ford Mustang enthusiasts with modified or turbocharged engines
• Track day drivers seeking improved cooling performance
• Street drivers aiming for better engine temperature management
• Performance tuners and racers looking to prevent overheating under high load