This Koyorad radiator is made for the Land Cruiser 100 Series HZJ105 turbo diesel and slots into manual rigs from 2000 to 2007 without drama. The core stands at 510 mm high and 695 mm wide so it can handle long climbs with a loaded wagon or camper trailer. The 53 mm thick core gives solid coolant volume when you sit on low range for hours in soft sand or rocky country. The inlet neck sits at 38 mm and the outlet neck at 42 mm so the hoses line up with factory sizing on the HZJ105 setup. The crossflow layout spreads engine heat right across the 510 by 695 mm core which suits slow hot work in Aussie conditions. The radiator is specced around real towing and touring use where a 4.2 litre turbo diesel spends hours between 1800 and 3000 rpm.

• Suits Toyota Land Cruiser 100 Series HZJ105 turbo diesel
• Fitment for manual transmission models from 2000–2007
• Core height measures 510 mm
• Core width measures 695 mm
• Core thickness measures 53 mm
• Inlet neck diameter is 38 mm
• Outlet neck diameter is 42 mm
• Crossflow style radiator core layout
• Direct replacement style unit for listed models
• Ideal for towing and touring cooling demands

Q: Does this radiator suit all Toyota Land Cruiser 100 Series models?

No, it suits HZJ105 turbo diesel models with manual transmission from roughly 2000 to 2007. Check your build plate to confirm the HZJ105 chassis code before ordering. Automatic and petrol variants often use different radiators. Matching the core dimensions and hose diameters with your existing unit is the safest way to confirm fitment.

Q: Do I need new hoses and clamps with this radiator?

Not always, but many people replace them at the same time. Old hoses can harden or crack after years of heat cycles. Fresh clamps help maintain pressure at the 38 mm inlet and 42 mm outlet necks. If your existing hoses show swelling or deep surface cracking, replacement during radiator fitment is a smart move.

Q: Is this radiator suitable for heavy towing and outback touring?

Yes, within the limits of the factory cooling system. The 510 mm by 695 mm core and 53 mm thickness provide strong heat transfer for long highway grades and off-road work. Overall cooling performance also depends on fan condition, shroud fitment, and clean airflow through the grille. Keeping mud and grass seeds out of the fins is critical on remote tracks.

Q: Should the cooling system be flushed before installing this unit?

Yes, a proper flush is strongly recommended. Old coolant can carry rust and scale that quickly clogs a fresh 53 mm thick core. A clean system also helps the 510 x 695 mm core run at full efficiency. Use coolant that meets Toyota specifications for your HZJ105 engine. Bleeding air from the system after filling helps prevent hot spots in the new radiator.

• Direct-fit radiator for Toyota Land Cruiser 100 Series HZJ105 turbo diesel with manual transmission
• Suits approximate build years 2000–2007
• Intended for vehicles listed as M/T and A/P Land Cruiser in description
• Installation requires reuse of existing hoses and mounting hardware where serviceable
• Professional installation recommended for correct coolant bleeding and pressure testing
• Check core dimensions 510 mm (height) x 695 mm (width) x 53 mm (thickness) against existing radiator before purchase