Mishimoto Racing Thermostat Nissan RB Series 155 Deg F | Enhanced Cooling Efficiency | Performance Thermostat

Overview

The Mishimoto Racing Thermostat for the Nissan RB Series is a high-performance cooling component designed to improve thermal management in modified and turbocharged Nissan and Infiniti engines. By opening at a lower temperature of 155°F, this thermostat allows coolant to circulate earlier, reducing the risk of overheating and maintaining optimal engine temperatures under demanding conditions. It is ideal for enthusiasts who have upgraded their turbo systems or increased engine output and require more effective cooling than the factory thermostat provides.

Engineered with precision and durability in mind, the Mishimoto Racing Thermostat is crafted to meet the rigorous demands of high-performance applications. Mishimoto’s design philosophy focuses on enhancing cooling efficiency without compromising reliability, ensuring that your RB engine stays within safe temperature ranges even during aggressive driving or track use. This thermostat is a direct replacement that integrates seamlessly with the existing cooling system, reflecting Mishimoto’s commitment to quality and fitment.

For Nissan RB engine owners, maintaining consistent and lower engine temperatures is critical to preserving performance and longevity, especially when running upgraded turbochargers or increased boost levels. This thermostat’s lower opening temperature helps prevent heat soak and reduces thermal stress, contributing to improved engine reliability and sustained power delivery. It’s a practical upgrade that complements other cooling system enhancements and supports the demanding needs of tuned RB-powered vehicles.

Features & Specifications

This Mishimoto Racing Thermostat is engineered for Nissan RB Series engines and features a 155°F opening temperature. Constructed from high-quality materials, it delivers enhanced cooling efficiency for enthusiasts seeking reliable temperature control in modified turbo applications.

• Brand: Mishimoto
• Product: Racing Thermostat Nissan RB Series 155 Deg F
• Part Number: MMTS-RB-ALLL
• Fitment: Nissan RB Series Engines
• Material: High-grade metal alloy
• Finish: Natural metal finish
• Construction: Precision engineered, performance-grade
• Origin: Not specified

Key Benefits

• Cooling Efficiency: Opens at 155°F to promote earlier coolant flow and reduce engine temperatures
• Performance Reliability: Helps prevent overheating in turbocharged and modified RB engines
• Fitment: Direct replacement for Nissan RB Series engines ensuring seamless integration
• Durability: Built from high-quality materials to withstand high thermal and mechanical stress
• Engine Longevity: Maintains optimal operating temperatures to reduce thermal wear and extend engine life

What's Included

• 1× Mishimoto Racing Thermostat Nissan RB Series 155 Deg F

Installation & Compatibility

Installation of the Mishimoto Racing Thermostat is straightforward and typically DIY-friendly for those with basic mechanical skills. It replaces the factory thermostat directly without requiring modifications or additional components. No special tools beyond standard hand tools are necessary. This thermostat is compatible with Nissan RB series engines and is especially recommended for vehicles with upgraded turbo setups or increased cooling demands. Always verify fitment for your specific engine variant before installation.

• Professional Installation: Recommended for those unfamiliar with cooling system components
• Modifications Required: None
• Verify Compatibility: Confirm fitment for your specific Nissan RB engine model

Shop with confidence at Subimods—your Subaru parts specialists.