Maintain a leak-free cooling system and reliable engine temperature control with this Genuine Nissan Large Thermostat Housing O-Ring, designed to suit Nissan Patrol GU Y61 models fitted with the TB48 engine. This OEM O-ring seals the thermostat housing assembly, preventing coolant leaks while ensuring proper coolant flow through the engine's cooling system.

Over time, thermostat housing O-rings can harden, flatten, or deteriorate due to constant heat cycling and coolant exposure. When the seal fails, coolant can leak from the thermostat housing, potentially leading to coolant loss, overheating issues, and costly engine damage if left unattended.

Manufactured to genuine Nissan specifications, this factory replacement O-ring provides precise fitment, dependable sealing performance, and long-lasting durability to help maintain your Patrol’s cooling system reliability in demanding Australian conditions.

Features & Benefits

• Genuine Nissan OEM part for exact fitment and reliability
• Designed specifically for Nissan Patrol GU Y61 TB48 engines
• Large O-ring for thermostat housing assembly
• Helps prevent coolant leaks from the thermostat housing
• Maintains proper cooling system pressure and coolant flow
• Durable rubber construction for heat and coolant resistance
• Supports reliable engine temperature regulation
• Ideal for cooling system repairs and preventative maintenance
• Direct replacement with no modifications required
• Maintains factory cooling system performance

Vehicle Fitment

• Nissan Patrol GU Y61 TB48

Please check your vehicle compatibility before purchasing. Contact us with your VIN details if you require assistance confirming fitment.

Common Signs You May Need Thermostat Housing O-Ring Replacement

• Coolant leaks around the thermostat housing
• Visible coolant residue on engine components
• Low coolant levels without obvious radiator leaks
• Sweet coolant smell from the engine bay
• Thermostat housing removed during repairs
• Hardened, cracked, or flattened O-ring
• Cooling system service being performed
• Preventative replacement during thermostat replacement

Replacing a worn thermostat housing O-ring helps prevent coolant leaks, maintain proper engine operating temperatures, and protect the long-term reliability of your Nissan Patrol TB48 engine.