The Koyorad radiator JR2317J slots into Toyota Kluger GSU50 and GSU55 models with the 3.5L V6 2GR-FE, so you can tackle highway runs and school runs without coolant drama. A 3 row style core footprint of 525 mm high by 760 mm wide gives the fan plenty of surface to work with on slow climbs. The 16 mm core thickness and 34 mm inlet and outlet keep coolant flow close to factory behaviour. The built-in 375 mm transmission cooler section keeps the auto fluid in check when you load up the family and gear. Mounting and hose positions line up with the Kluger front support and standard 34 mm hose sizing, so the rest of your setup stays familiar. Matching the Toyota 164000P420 reference means you are choosing a smart buy that keeps to known dimensions for Aussie heat and long trips.

• Suits Toyota Kluger GSU50 and GSU55
• For 3.5L V6 2GR-FE engines
• Suits automatic transmission models
• Core height measures 525 mm
• Core width measures 760 mm
• Core thickness measures 16 mm
• Inlet and outlet diameters 34 mm
• Integrated 375 mm transmission cooler
• Cross references Toyota 164000P420
• Pattern replacement radiator from Koyorad

Q: Does this radiator suit all Toyota Kluger engines from 2014-on?

No, it suits the 3.5L V6 2GR-FE models with automatic transmission. Always match the engine code 2GR-FE and body codes GSU50 or GSU55 before ordering. Check your build plate or registration details if unsure. Matching the OE reference 164000P420 with your existing radiator is another solid check.

Q: Is the transmission cooler built into this radiator?

Yes, it includes an integrated transmission cooler section of 375 mm. This section connects to the factory auto transmission lines on suitable Kluger models. Keeping this cooler in good condition helps manage transmission temperatures under load. Replace any worn seals or hoses during installation.

Q: Can I reuse my original radiator hoses with this unit?

Yes, the inlet and outlet are both 34 mm, which matches the standard hose sizing on compatible Kluger models. Inspect each hose for cracks, swelling or hardness before refitting. Replacing tired hoses at the same time avoids repeat coolant drains. Always use new clamps if the old ones are corroded or distorted.

Q: How do I confirm this radiator matches my original unit?

Measure the core height, width and inlet outlet diameters of your existing radiator and compare to 525 mm high, 760 mm wide and 34 mm fittings. You can also cross-check the Toyota part number 164000P420 against the number stamped or labelled on your original unit. Matching both measurements and part references gives the best chance of correct fitment. If in doubt, speak with your mechanic or our crew.

Suits Toyota Kluger GSU50 and GSU55 models from 2014-on with 3.5L V6 2GR-FE engine and automatic transmission. Confirm OE reference 164000P420 against the original radiator before fitment. Professional installation is recommended to manage coolant and transmission fluid handling. Reuse or replace hoses and clamps as required by vehicle condition.