Over time, thermostats can stick open or closed, become sluggish, or fail due to corrosion, heat cycles, and age. A faulty thermostat can cause overheating, poor heater performance, increased fuel consumption, and inconsistent engine temperatures, which may lead to long-term engine damage if left unaddressed.

Manufactured to Nissan’s original specifications, this direct-fit replacement ensures accurate coolant regulation, reliable sealing, and long-lasting durability without the need for modification.

Features & Benefits
• Genuine Nissan OEM thermostat and water fitting for precise fitment and reliability
• Designed specifically for Nissan Patrol TB42 and RD28 engines
• Accurately regulates engine coolant flow and operating temperature
• Helps prevent overheating and temperature fluctuations
• Improves heater performance and cabin comfort in cold conditions
• Durable construction with corrosion-resistant materials
• Ensures proper coolant sealing and system integrity
• Direct replacement with no modifications required
• Ideal for cooling system servicing and preventative maintenance

Vehicle Fitment

• Nissan Patrol TB42
• Nissan Patrol RD28

Please confirm compatibility before purchase or contact us with your VIN for assistance, as cooling system configurations may vary by model and build specification.

Common Signs of a Faulty Thermostat or Water Fitting
• Engine running hotter than normal or overheating
• Fluctuating or unstable temperature gauge readings
• Poor heater performance inside the cabin
• Coolant leaks around thermostat housing
• Increased fuel consumption due to inefficient temperature control
• Slow warm-up or engine not reaching operating temperature

Replacing a worn or faulty thermostat during cooling system maintenance is essential to maintain stable engine temperatures, protect internal components, and ensure long-term reliability of your Patrol.