AISIN Genuine THN-007 Engine Coolant Thermostat with Housing – Fits Infiniti FX35, G35, M35 & Nissan Frontier, NV Series, Pathfinder, Xterra

Overview

AISIN OE matched engine coolant thermostat with housing is designed for efficient, consistent cooling performance. Built with high-quality materials and precise engineering, it helps maintain the correct operating temperature for everyday driving and warmer days alike, without overpromising results.

What’s included

• AISIN thermostat
• Thermostat housing

Why choose AISIN

AISIN has a long-standing history as a global OE parts supplier. Since 1965 the brand has focused on engineering accuracy, material excellence, and service reliability. That heritage translates into components designed to fit correctly, function predictably, and support long-term cooling system performance.

Key features

• OE-matched design for efficient, consistent cooling performance
• Superior OE technology ensures perfect form, fit, and function
• Manufactured from high-quality materials for durability and long life
• Correct OE specified operating temperature maintained by the thermostat
• Thermostat housing included to simplify installation
• Compatibility with select Infiniti and Nissan models (engine-dependent fitment): FX35, G35, M35, Frontier, NV1500, NV2500, NV3500, Pathfinder, Xterra

Compatibility details

This thermostat is designed to work with specific configurations of INFINITI and NISSAN vehicles. Always verify fitment with your exact model and engine to ensure proper compatibility before installation.

Practical use and real-world scenarios

Picture daily commutes through urban heat or long highway stretches on a sunny day. A correctly matched thermostat helps the cooling system respond to temperature changes in a controlled manner, supporting consistent engine warmth and protecting the cooling circuit from sudden fluctuations.

For enthusiasts who perform maintenance at home or in a shop, the included housing reduces installation complexity and the potential for misalignment, contributing to a smoother replacement experience.

Visuals and feel

Quality construction and a snug housing fit give a sense of reliability when handling the part during a routine service. The design emphasizes clean lines, precise tolerances, and a straightforward path for coolant flow.

Notes on installation and care

Follow the vehicle’s service manual and use appropriate tools for a secure seal. Confirm the vehicle’s specific fitment and ensure the cooling system is depressurized before replacement. AISIN parts are intended to complement OE systems and may vary by engine configuration.