The Jayrad Radiator JR2815J steps straight into Toyota Land Cruiser HZJ and HDJ 70 Series engine bays from 1999 to 2006, including 78 and 79 Series, with a core size of 560 mm high and 595 mm wide. That 48 mm thick core gives plenty of coolant volume for slow climbs and low-range work where airflow drops below 30 km/h. Hose connections at 38 mm inlet and 42 mm outlet line up with factory plumbing so you can keep the rest of your cooling setup familiar.

The aluminium core uses dense fins over the full 560 x 595 mm face to shift heat away from diesel temps that can sit above 90°C on a loaded run. Side tanks are built to match 70 Series mounting points spaced around 600 mm apart, so the radiator sits square between chassis rails. An integrated transmission cooler section supports driveline temps during towing weights near the typical 3500 kg rating. It is solid gear for anyone who wants a cooling setup that keeps up with real Australian conditions.

• Replacement radiator for Toyota Land Cruiser HZJ / HDJ 70 Series
• Suits 78 and 79 Series Land Cruisers from 1999 to 2006
• Core height measures 560 mm for strong frontal area
• Core width measures 595 mm to fill factory support panel
• Core thickness of 48 mm for increased coolant volume
• Inlet neck diameter is 38 mm to match OEM hose
• Outlet neck diameter is 42 mm for correct lower hose fit
• Includes integrated transmission cooler within end tank
• Compatible with manual transmission setups on these models
• Built by Jayrad for 4x4 and touring applications

Q: Does this radiator suit automatic transmission Land Cruisers?

This radiator is listed for manual transmission Land Cruisers. The hose diameters and cooler layout are matched to the manual 70 Series setup. Automatic models can use different cooler arrangements and line fittings. Always match the transmission type and part number to your VIN before ordering.

Q: Do I need new hoses to fit this radiator?

You only need new hoses if your existing ones are worn or damaged. The inlet is 38 mm and the outlet is 42 mm, which match the original hose sizes on these models. Many owners choose to replace old hoses while the cooling system is open. Fresh clamps and coolant are also good practice during a radiator swap.

Q: Is the transmission cooler inside the radiator or separate?

This radiator has an integrated transmission cooler. The cooler sits inside one of the end tanks and connects via external lines. This layout is common on Land Cruiser 70 Series models of this era. Always confirm that your existing lines and flare types match before installation.

Q: How should I maintain this radiator once fitted?

You should keep the fins clear and use the correct coolant mix. A gentle rinse removes bugs and seeds without bending the fins. Regularly checking for leaks around the 38 mm inlet and 42 mm outlet helps catch issues early. A full coolant change at manufacturer intervals keeps the core working properly.

Suits Toyota Land Cruiser HZJ and HDJ 70 Series models built between 1999 and 2006 with manual transmission.

Also suits Toyota Land Cruiser 78 and 79 Series from 1999 to 2006 with manual transmission.

Fitment requires the correct mounting points for the 70 Series radiator support panel.

Existing fan shroud and hoses must match the 38 mm inlet and 42 mm outlet diameters.

Professional installation is recommended to ensure correct coolant bleeding and transmission cooler connection where fitted.