This Koyorad radiator slots straight into Toyota Prado KDJ120 and KZJ120 turbo diesel autos, so you can tackle long highway runs and slow hill climbs without coolant temps creeping up. A core height of 650 mm and width of 600 mm gives the Prado plenty of frontal cooling area for loaded touring. A 250 mm in tank transmission cooler keeps the auto fluid under control when you tow or crawl in low range.

The core thickness comes in at 36 mm, giving a solid balance between airflow and heat transfer for Aussie summer conditions. Both inlet and outlet sit at 38 mm diameter, lining up with factory hoses so the setup stays simple. An 8 mm breather port helps move trapped air out of the system for consistent flow. The radiator deletes a filler neck so it works with a remote header tank layout found on these Prado models.

• Suits Toyota Prado KDJ120 2006–2009 turbo diesel A/T
• Suits Toyota Prado KZJ120 2003–2007 turbo diesel A/T
• Core dimensions: 650 mm height x 600 mm width x 36 mm thickness
• Inlet diameter: 38 mm for factory hose fitment
• Outlet diameter: 38 mm matching OEM plumbing
• Breather port diameter: 8 mm for air bleed
• Integrated automatic transmission cooler length: 250 mm
• Radiator supplied without filler neck to suit remote header tank
• Koyorad reference: Toy129PacAD2K
• Ideal for towing and touring coolant management

Q: Does this radiator suit manual transmission Prado models?

No, this radiator is listed for automatic transmission Prado models only. The integrated 250 mm transmission cooler is designed to work with the auto gearbox lines. Manual models use a different cooling layout and do not need the same oil cooler circuit. Always match the transmission type before ordering to avoid extra work and return costs.

Q: Is a separate transmission cooler still required with this radiator?

This radiator includes an in tank 250 mm transmission cooler for the automatic gearbox. Some drivers still add an external cooler for heavy towing or sand work, but many standard touring setups run fine on the in tank unit. Check gearbox temperature behaviour on your usual trips. Add extra cooling only if you see sustained high temps.

Q: Does this radiator come with a filler neck on the top tank?

No, this radiator is supplied without a filler neck on the tank. The Prado KDJ120 and KZJ120 turbo diesel layouts use a remote header or expansion bottle for filling. This keeps the radiator matched to the factory plumbing. Always open the correct header tank cap instead of trying to modify the radiator top tank.

Q: Will the 38 mm inlet and outlet suit aftermarket silicone hoses?

Yes, most aftermarket silicone hose kits for these Prado diesel engines are designed around the factory 38 mm neck size. As long as the hose set is specified for KDJ120 or KZJ120 turbo diesel models it should clamp to this radiator. Always check hose condition and clamp quality during installation. Replace worn clamps to prevent leaks under pressure.

• Vehicle compatibility: Toyota Prado KDJ120 2006–2009 A/T turbo diesel
• Vehicle compatibility: Toyota Prado KZJ120 2003–2007 A/T turbo diesel
• Radiator part reference: Toy129PacAD2K
• Configuration: automatic transmission with integrated 250 mm trans cooler
• Filler neck: not supplied on radiator tank