This Koyorad radiator slots into Hino FS420 FS1700 Series trucks with an E13C-T engine and manual box, so you can get out there without watching the temp gauge all day. The core stands at 950 mm high and 757 mm wide, giving plenty of face area to handle long pulls with a loaded trailer. Matching 60 mm inlet and outlet necks keep hose choice simple when you are freshening the cooling system. The core thickness of 47 mm gives a good balance between airflow and coolant volume, which helps the kit tackle slow hill climbs and city work. A 10 mm breather port makes bleeding and filling straightforward when you swap the gear in the driveway or workshop. The built‑in transmission cooler is matched to manual FS420 setups, so you keep driveline temperatures under control on hot bitumen and gravel backroads right across Australia.

• Suits Hino FS420 FS1700 Series E13C-T manual trucks from 2003 onward
• Core height measures 950 mm for strong airflow coverage
• Core width of 757 mm matches factory mounting footprint
• Core thickness is 47 mm balancing coolant volume and airflow
• 60 mm inlet neck matches common FS420 top hose size
• 60 mm outlet neck suits standard bottom hose connection
• 10 mm breather port supports correct system venting
• Integrated transmission cooler built into tank assembly
• Koyorad heavy‑duty radiator for performance cooling
• Category: 4x4 & Touring performance radiator gear

Q: Does this radiator suit automatic FS420 models?

This radiator is specified for manual Hino FS420 FS1700 Series trucks. The integrated cooler and fittings are aligned to that layout, so automatic models may use different connections or cooler sizing. Always match your VIN and transmission type against workshop data. If you are unsure, our crew can help cross‑check before you order.

Q: Do I need new hoses with the 60 mm inlet and outlet?

You can reuse hoses that match the 60 mm diameter and are still in sound condition. Many workshops choose to replace old hoses while the system is open, as rubber hardens and can fail after years of heat cycles. Inspect for cracks, swelling or soft spots. If there is any doubt, fit new hoses to protect the new radiator.

Q: Is the 10 mm breather connection required to be used?

The 10 mm breather port should be connected as per the original Hino cooling layout. That small line allows trapped air to move and helps the system fill correctly. Leaving it capped or open can cause hot spots or coolant loss. Reconnect it using suitable hose and clamps rated for engine‑bay temperatures.

Q: Can this radiator be installed outside a workshop environment?

Installation can be carried out by anyone comfortable with heavy vehicle cooling systems and safety procedures. The unit is physically large at 950 mm by 757 mm and can be awkward to handle, so a second person or lifting aid is recommended. Always follow standard practices for draining coolant and support the radiator to avoid fin or tank damage.

Suitable for Hino FS420 trucks in the FS1700 Series with E13C-T engines from 2003 onwards and manual transmissions. Core size is 950 mm high x 757 mm wide x 47 mm thick so confirm against your existing radiator before ordering. Inlet and outlet both use 60 mm hose connections and the breather port is 10 mm. Unit includes an integrated transmission cooler and is configured for manual gearbox applications.