Parts for your 2004 Toyota Kluger-Radiator

2004 Toyota Kluger Radiator – what it does and how to look after it

A radiator is absolutely fitted and relevant on the 2004 Toyota Kluger (XU20). Toyota’s factory service information for the Kluger/Highlander platform (2001–2007), the Toyota Electronic Parts Catalogue, and OE supplier catalogues (e.g., DENSO) all specify a crossflow aluminium radiator with plastic end tanks for this model. The owner’s manual also outlines radiator cap safety and coolant requirements, confirming the cooling system’s design on the 2004 Kluger. Automatic variants typically incorporate an in‑tank transmission fluid cooler.

On this Kluger, the radiator’s job is to pull heat out of the engine coolant so the V6 stays in its happy temperature range under the bonnet. That means smoother running, better efficiency, and less risk of head gasket dramas or warped components when it’s working hard in Aussie or Kiwi heat, towing, or stop‑start traffic.

For servicing, stick with the coolant type specified by Toyota—commonly Toyota Genuine Super Long Life Coolant (pink premix) for this generation, though some vehicles may have been filled with Toyota Long Life (red). Don’t mix coolant types, and use demineralised water if a concentrate is used. Service intervals vary by coolant type and local schedule, so check the owner’s manual or service booklet.

• Inspect for leaks around end tanks, seams, and hose connections