This Koyorad radiator steps straight into Toyota Hilux KZN models running the 1KZ-TE 3.0L turbo diesel from 1997 to 2005. The core stands at 550 mm high and 525 mm wide so it matches the factory shroud and fan coverage. A 38 mm core thickness keeps coolant volume right for long climbs and slow work. The 38 mm inlet and outlet suit the stock hoses so you keep the setup simple. This gear is a smart buy if your old radiator is blocked or the tanks are starting to seep. The dimensions line up with the original mounts so the frame and brackets stay factory. The core size helps the Hilux hold temperature when you tow or tackle corrugations in hot weather. You get straightforward cooling performance without chasing custom pipework or brackets.

• Suits Toyota Hilux KZN 1997–2005 models
• Fits 1KZ-TE 3.0L turbo diesel engines
• Manual transmission (M/T) compatible specification
• Core height measures 550 mm
• Core width measures 525 mm
• Core thickness is 38 mm
• 38 mm inlet and outlet neck diameters
• Direct replacement style radiator assembly
• Ideal for towing and touring cooling refresh
• Backed by Koyorad brand engineering

Q: Does this radiator suit automatic transmission Hilux KZN models?

This radiator is listed for manual transmission (M/T) Hilux KZN models. The auto variants often run different tank designs or integrated transmission coolers. Always compare your original radiator for extra fittings on the tanks. If your current radiator has transmission cooler lines, this manual spec unit may not be suitable.

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

The inlet and outlet necks on this radiator are 38 mm, which matches the original hose size on 1KZ-TE Hilux KZN models. If your existing hoses are in good condition they can usually be reused. Many owners still choose to replace old hoses due to age and heat cycling. Fresh clamps and coolant are also commonly installed at the same time.

Q: How can I confirm this radiator will fit my Hilux before ordering?

Check that your Hilux is a KZN series with the 1KZ-TE 3.0L turbo diesel and manual transmission built between 1997 and 2005. Measure your existing radiator core height and width and confirm they are close to 550 mm by 525 mm. Compare the inlet and outlet neck diameters to the listed 38 mm. If those figures line up, fitment is much more likely.

Q: Is this radiator suitable for towing in hot Australian conditions?

The 550 mm by 525 mm core and 38 mm thickness provide cooling capacity comparable to the original Hilux diesel radiator. When paired with a clean cooling system and correct fan shroud, this setup can handle typical towing and touring loads. Keeping fins free of mud and bugs is important for airflow. Regular coolant changes also help maintain heat transfer over the long term.

Suits Toyota Hilux KZN models built from 1997 to 2005 with the 1KZ-TE 3.0L turbo‑diesel engine and manual transmission. Fitment is intended as a replacement radiator for vehicles originally equipped with this style core and hose layout. Confirm core height 550 mm, width 525 mm and inlet and outlet diameter 38 mm against the existing radiator before installation.