Maintain reliable engine cooling and ensure proper coolant circulation with this Genuine Nissan Patrol GU TB45 Bypass Water Hose to Thermostat Housing. This OEM hose is designed to connect the thermostat housing to the engine’s bypass cooling circuit, helping regulate coolant flow and maintain stable operating temperatures across all driving conditions.

Over time, coolant hoses can degrade due to constant heat cycling, pressure changes, and exposure to engine bay contaminants. A worn or cracked bypass hose can lead to coolant leaks, overheating, reduced cooling efficiency, and potential engine damage if not replaced promptly.

Manufactured to genuine Nissan specifications, this direct-fit replacement hose ensures secure fitment, correct coolant routing, and long service life in both standard driving and harsh Australian off-road environments.

Features & Benefits

• Genuine Nissan OEM part for exact fitment and reliability
• Designed specifically for Nissan Patrol GU Y61 TB45 engines
• Connects thermostat housing to engine bypass cooling circuit
• Maintains correct coolant flow and engine operating temperature
• High-quality OEM rubber construction for durability and flexibility
• Resistant to heat, pressure, and coolant chemical exposure
• Direct replacement with factory-style fitment
• Helps prevent coolant leaks and overheating issues
• Ideal for cooling system servicing and preventative maintenance
• Built for harsh Australian on-road and off-road conditions

Vehicle Fitment
Suitable for:

• Nissan Patrol GU Y61 TB45 4.5L Petrol

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

Common Signs You Need a Replacement Bypass Water Hose

• Coolant leaking near thermostat housing area
• Visible cracking, swelling, or perishing of hose rubber
• Engine running hotter than normal or fluctuating temperature
• Coolant smell coming from engine bay
• Low coolant levels requiring frequent top-ups
• Hose soft, brittle, or collapsing under pressure

Replacing a worn bypass water hose helps maintain correct cooling system performance, prevents overheating, and ensures long-term engine reliability under all driving conditions.