Toyota LandCruiser Radiator Upgrade Genuine viscous coupling  Kit suitable for HZJ 75 and upto 08/01 HZJ78/79

Toyota LandCruiser Radiator Upgrade Genuine viscous coupling Kit suitable for HZJ 75 and upto 08/01 HZJ78/79

Regular price $1,800.00 Sale

Complete radiator upgrade kit designed to convert early 1HZ LandCruisers to the larger HDJ78/79 cooling system.

Ideal for touring, towing and vehicles operating in hot Australian conditions. 

This complete cooling system upgrade kit has been assembled for owners wanting to upgrade their early HZJ75, HZJ78 and HZJ79 LandCruiser to the larger HDJ-style radiator setup.

 

The kit combines genuine Toyota, AISIN and Terrain Tamer components to provide improved cooling performance and reliability for vehicles that regularly tow, tour or operate in demanding conditions. 

 

The larger radiator and matching fan components help increase airflow and cooling efficiency while retaining factory-style fitment.

 

 

 

 

Kit Includes

 

 

  • Terrain Tamer Heavy Duty Radiator
  • Terrain Tamer Top & Bottom Radiator Hose Kit
  • Genuine Toyota Fan Shroud
  • Genuine Toyota Fan Blade (Yellow Dot)
  • AISIN Viscous Coupling
  • Genuine Toyota Thermostat
  • Genuine Toyota Thermostat Gasket / O-Ring
  • Genuine Toyota Upper Radiator Mounts
  • Genuine Toyota Lower Radiator Mounts
  • Genuine Toyota Under Engine Cover

 

 

Complete package designed to eliminate the guesswork when upgrading your cooling system. 

 

 

 

 

Vehicle Compatibility

 

 

Toyota LandCruiser:

 

  • HZJ75 1HZ – 01/1990 to 07/1999
  • HZJ78 1HZ – Up to 08/2001
  • HZJ79 1HZ – Up to 08/2001

 

 

Engine:

 

  • 1HZ 4.2L Naturally Aspirated Diesel

 

 

 

 

 

Important Notes

 

 

Vehicles built from 09/2001 onwards already have the larger radiator shroud setup.

 

For these vehicles, generally only the radiator and viscous coupling upgrade is required. 

 

Some remote and regional areas may incur additional freight charges due to the size of the radiator assembly. 

 

 

 

 

Benefits

 

 

  • Improved cooling capacity
  • Better airflow through the radiator
  • Ideal for towing and touring
  • Suitable for hot climate operation
  • Genuine Toyota and AISIN components
  • Heavy-duty Terrain Tamer radiator
  • Complete conversion package

 

 

Terrain Tamer’s heavy-duty radiator design features increased cooling capacity and a more robust construction than many standard replacement radiators. 

 

 

 

 

Common Questions

 

 

Why upgrade to the HDJ-style radiator setup?

The larger radiator and fan combination provides improved cooling performance compared to the earlier setup. 

 

Is this suitable for towing?

Yes. This upgrade is commonly chosen by owners who tow caravans, campers and trailers. 

 

Does the kit include the viscous hub?

Yes, an AISIN viscous coupling is included. 

 

Is this a bolt-in upgrade?

The kit has been assembled specifically for upgrading early HZJ75, HZJ78 and HZJ79 models to the later cooling system arrangement. 

If you’ve ever watched the temperature gauge climb while towing, driving into a headwind or tackling long sand tracks, this is one of the best upgrades you can make to an early 1HZ.

 

Rather than replacing individual cooling components one at a time, this kit upgrades the entire radiator, airflow and fan system in one hit, giving you a proven HDJ-style cooling package that many LandCruiser owners have used successfully for years.