The Koyorad Radiator JR1765K fits Holden Jackaroo L8 autos from 1998 to 2003 and keeps both petrol and diesel engines under control when you load the wagon up. A core height of 482 mm and width of 626 mm give plenty of fin area for slow climbs or beach work where airflow drops. With a 26 mm core and 38 mm inlet and outlet, it lines up with the factory hoses and typical touring setups.

The integrated transmission cooler handles the auto box without extra lines or brackets, which keeps the engine bay tidy when you tackle corrugations or soft sand. Those 38 mm connections match standard hose sizes, so you can swap the unit without custom parts. The 482 mm by 626 mm core size gives a good balance between cooling and frontal area, making this a smart buy for keeping the Jackaroo ready for long country runs.

• Suits Holden Jackaroo L8 automatic models from 1998 to 2003
• Compatible with both petrol and diesel variants in this range
• Core height of 482 mm for strong airflow coverage
• Core width of 626 mm to match front opening
• Core thickness of 26 mm for balanced cooling capacity
• 38 mm inlet diameter aligns with factory upper hose
• 38 mm outlet diameter aligns with factory lower hose
• Integrated transmission cooler for automatic gearbox applications
• Direct replacement style radiator for the specified vehicles
• Manufactured by Koyorad for dedicated Jackaroo L8 fitment

Q: Does this radiator suit both petrol and diesel Holden Jackaroo L8 models?

Yes, this radiator suits both petrol and diesel Holden Jackaroo L8 automatic models from 1998 to 2003. The core dimensions and hose diameters match the factory layout used across these engines. That means you can keep one part number in mind no matter which fuel type your Jackaroo runs. Always double-check your build year and transmission type before ordering.

Q: Is there an integrated transmission cooler in this radiator?

Yes, this radiator includes an integrated transmission cooler for the automatic gearbox. The cooler sits inside one of the end tanks so fluid lines connect directly to the radiator. This setup keeps gearbox temperatures under control when towing or running in low range. It also reduces extra plumbing compared to using a separate external cooler alone.

Q: What are the core dimensions of this Koyorad radiator?

The core measures 482 mm high, 626 mm wide and 26 mm thick. These measurements define the finned cooling area that sits in the airflow behind the grille. Matching the original core size helps keep fan shroud fitment and airflow patterns correct. Accurate sizing also makes it simpler to compare capacity with other radiators.

Q: What size hoses does this radiator accept?

The inlet and outlet both accept 38 mm hoses. This matches the standard hose size used on the original Holden Jackaroo L8 automatic cooling system. Using the correct diameter helps coolant flow properly and allows hose clamps to seal well. When replacing the radiator, it is a good time to inspect the 38 mm hoses and clamps for wear.

• Suits Holden Jackaroo L8 automatic models built between 1998 and 2003
• Compatible with both petrol and diesel variants in this year range
• Includes integrated transmission cooler for automatic gearbox applications
• Professional installation is recommended to ensure correct coolant flow and hose alignment
• Existing hoses and fittings should be checked and replaced if worn during installation