This Koyorad radiator suits Toyota Hiace KDH 3.0L turbo diesel autos from 10/2010-on and keeps the cooling system in check when you load the van up. With a core height of 510 mm and width of 652 mm it lines up with factory mounts and gives plenty of surface area for heat to leave the coolant. A 36 mm core thickness keeps temperature under control when you sit in traffic or grind up long highway hills.

You get 38 mm inlet and outlet diameters so the standard hoses slide straight on and clamp up without drama. An 8 mm breather port looks after overflow tank flow so the system can settle as it heats and cools. The integrated 390 mm transmission cooler section helps the auto stay in the zone when you tackle sustained towing or hot city work. For a hard working Hiace this is a smart buy.

• Suits Toyota Hiace KDH 3.0L turbo diesel
• Fitment for automatic transmission models 10/2010-on
• Core height of 510 mm for strong cooling area
• Core width of 652 mm matches factory mounts
• 36 mm core thickness balances flow and cooling
• 38 mm inlet diameter for upper hose fitment
• 38 mm outlet diameter for lower hose fitment
• 8 mm breather diameter for overflow connection
• Integrated 390 mm transmission cooler section
• Purpose-built replacement radiator from Koyorad

Q: Does this radiator include an integrated transmission cooler?

Yes, this radiator includes an integrated transmission cooler section measuring 390 mm in length. That section carries automatic transmission fluid through dedicated internal passages. It helps stabilise gearbox temperature when you sit in slow traffic or tow. It also keeps plumbing tidy because the cooler sits inside the main radiator assembly.

Q: What engine and transmission combination does this radiator suit?

This radiator suits Toyota Hiace KDH models with the 3.0L turbo diesel engine and automatic transmission from 10/2010-on. The hose diameters and transmission cooler layout match this specific setup. Using it on a different engine or gearbox combination can cause alignment and cooling issues. Always confirm your build details against the vehicle compliance plate before ordering.

Q: What hose sizes does this radiator use?

Both the inlet and outlet hose connections on this radiator are 38 mm in diameter. Matching this size with your existing upper and lower radiator hoses is important for correct sealing. Incorrect hose size can lead to leaks under pressure. If your current hoses have swollen or hardened it is a good time to replace them while fitting the new radiator.

Q: Can this radiator help with overheating under load?

This radiator offers a 510 mm by 652 mm core and a 36 mm thickness which together provide strong heat rejection capacity. If the rest of the cooling system is in good order this can improve temperature control when towing or carrying heavy loads. Make sure the fan clutch, thermostat and coolant mixture are also correct. Overheating often comes from several small issues working together.

Suits Toyota Hiace KDH with 3.0L turbo diesel engine from 10/2010-on with automatic transmission. Radiator dimensions are 510 mm core height, 652 mm core width and 36 mm core thickness. Inlet and outlet pipes are 38 mm diameter and must match the existing hose sizes. Breather diameter is 8 mm and integrated transmission cooler section is 390 mm long. Professional installation is recommended to maintain correct cooling and transmission line sealing.