Maintain reliable coolant flow and proper engine operating temperature with this Genuine Nissan Thermostat Housing Outlet, designed specifically for Nissan Patrol GU Y61 models fitted with the TB45 4.5L petrol engine. This OEM water outlet housing mounts over the thermostat and forms a critical part of the engine cooling system, directing coolant flow between the engine and radiator. A damaged housing can lead to coolant leaks, overheating, and potentially costly engine repairs.

Over time, thermostat housing outlets can suffer from corrosion, gasket surface deterioration, and cracking due to constant exposure to coolant, heat cycles, and engine vibration. Even minor leaks can result in coolant loss and reduced cooling system efficiency, especially during towing, off-road driving, or hot weather conditions.

Manufactured to genuine Nissan specifications, this direct-fit replacement restores proper coolant routing, secure sealing, and long-term cooling system reliability.

Features

• Genuine Nissan OEM part
• Suits Nissan Patrol GU Y61 with TB45 4.5L petrol engine
• Manufactured to factory Nissan specifications
• Durable cast construction designed for cooling system applications
• Precision-machined sealing surfaces
• Designed for correct coolant flow routing
• Direct fit replacement, no modifications required
• Ideal during cooling system repairs and thermostat replacement

Benefits

• Restores proper coolant circulation through the engine
• Helps maintain correct engine operating temperature
• Prevents coolant leaks from damaged housing assemblies
• Reduces risk of engine overheating
• Supports long-term cooling system reliability
• Ensures secure thermostat housing fitment
• OEM quality for precise fitment and durability

Vehicle Fitment

Suitable for:

• Nissan Patrol GU Y61 with TB45
 

Please confirm compatibility prior to purchase or contact us with your VIN to ensure correct fitment.

Common Signs of Wear

• Coolant leaking from thermostat housing area
• Visible corrosion around housing or outlet neck
• Cracks in housing casting
• Coolant residue or staining near thermostat assembly
• Low coolant level without obvious radiator leaks
• Engine running hotter than normal
• Repeated coolant loss after replacing hoses or clamps

Replacing a worn or leaking thermostat housing outlet is essential for maintaining cooling system integrity, preventing overheating, and ensuring the long-term reliability of your Nissan Patrol GU TB45 engine.