This Koyorad radiator suits Nissan Patrol GU Y61 autos with the TB45E engine from 1997 on and keeps the big six cooler with a core that is 450 mm high and 908 mm wide. You get a 34 mm thick core that handles long climbs without the temp needle creeping up. The 8 mm bleed pipe on the top tank makes coolant changes straightforward when you are out there chasing tracks hours from town. The inlet and outlet sit at 35 mm so your factory hoses line straight up without hunting for odd sizes. A 375 mm internal transmission cooler runs inside the tank so the auto stays in its comfort zone when you tackle soft sand or haul a decent load. The whole setup drops into the standard GU Y61 cradle so the fan shroud and other gear stay where Nissan intended. That makes this radiator a smart buy for long term touring rigs.

• Suits Nissan Patrol GU Y61 automatic TB45E engines
• Core dimensions 450 mm high x 908 mm wide
• Core thickness 34 mm for consistent airflow
• 35 mm inlet and 35 mm outlet necks
• 8 mm bleed pipe on the top tank
• Integrated 375 mm automatic transmission cooler
• Direct fit style for 1997-on GU Y61 layout
• Top tank configuration as per factory design
• Supports cooling demands for towing and touring
• Koyorad branding for dedicated radiator manufacture

Q: Will this radiator fit all GU Y61 Patrols?

This radiator is specified for GU Y61 Patrols with the TB45E petrol engine and automatic transmission from 1997-onwards. Manual models and other engines can run different cores and neck sizes. Always cross check your VIN and existing radiator layout before ordering. If your top tank lacks an 8 mm bleed pipe this unit is likely not correct.

Q: Does this radiator include a built-in transmission cooler?

Yes it includes an internal transmission cooler that measures 375 mm in length. This cooler connects to the automatic transmission fluid lines using the existing fittings on the Patrol. Keeping this cooler in circuit helps the gearbox maintain stable temperatures on long climbs. Many owners still add an external cooler for heavy towing but this core retains the factory base cooling.

Q: What hose size does this radiator use?

Both the inlet and outlet necks are 35 mm in diameter. This matches the standard GU Y61 TB45E automatic radiator hoses. Using the correct 35 mm hose size gives proper clamp tension and reduces the risk of leaks. Always inspect your old hoses for cracks and swelling and replace them if needed during the radiator swap.

Q: What are the core dimensions of this radiator?

The core measures 450 mm in height 908 mm in width and 34 mm in thickness. These dimensions match the space in the GU Y61 front cradle and the fan shroud footprint. Correct core sizing keeps airflow smooth across the fins. It also avoids interference with the fan blades and surrounding brackets.

Suitable for Nissan Patrol GU Y61 automatic models with TB45E engine from 1997-onwards that use a radiator with 8 mm bleed pipe and top tank configuration. Radiator core dimensions are 450 mm high x 908 mm wide x 34 mm thick with 35 mm inlet and outlet connections. Unit includes an integrated 375 mm transmission cooler for auto gearbox lines. Professional installation is recommended to ensure correct coolant flow and transmission cooler hose routing.