The Jayrad JR1063V radiator steps in when the factory unit on your Holden Rodeo RA or Colorado RC diesel starts to struggle, with a core size of 475 mm high by 590 mm wide to match the original footprint. A 28 mm core thickness keeps coolant volume up without crowding other gear up front. Inlet and outlet necks at 38 mm line up with standard hoses, so the cooling loop stays the same diameter all the way through.

Inside the JR1063V sits a built-in transmission cooler matched to automatic setups on these 3.0 L diesels, cutting down the need for extra hardware in front of the radiator. The 475 mm by 590 mm fin area gives solid airflow coverage for long climbs or slow work on hot days. With a consistent 28 mm tube stack, heat moves out to the fins quickly, helping the engine and auto stay in their normal operating temperature window.

• Suits Holden Rodeo RA 3.0L diesel automatic (2003–2008)
• Suits Holden Colorado RC 3.0L diesel automatic (2003–2008)
• Listed as universal fit for selected Isuzu D-Max 3.0L
• Core height 475 mm for factory-style coverage
• Core width 590 mm for full frontal airflow
• Core thickness 28 mm balances capacity and space
• 38 mm inlet neck matches typical upper hose size
• 38 mm outlet neck matches typical lower hose size
• Integrated transmission cooler for automatic gearboxes
• Direct replacement-style radiator from Jayrad

Q: Does this radiator include a built-in transmission cooler?

Yes, this radiator includes an integrated transmission cooler suitable for automatic transmissions. The cooler sits within the main tank area, so you do not need a separate external cooler to restore factory-style operation. Existing transmission lines can be connected to the cooler ports during installation. Always check line condition and replace any damaged fittings at the same time.

Q: Will this radiator fit a manual transmission Rodeo or Colorado?

This radiator is specified for automatic transmission models. The core dimensions may physically resemble some manual variants, but the integrated transmission cooler and port layout are aimed at autos. Manual models often use different tank configurations. Checking part numbers against your VIN before ordering is the safest way to confirm a match.

Q: What engine size is this radiator suited to?

This radiator is listed for 3.0L diesel engines in the Rodeo RA, Colorado RC and selected D-Max models. The core size and transmission cooler capacity are matched to the heat load of these 3.0L diesel setups. Using it on different engine sizes or fuel types can lead to incorrect cooling performance. Always match the engine and year range before purchase.

Q: Do I need to modify the hoses to fit this radiator?

The inlet and outlet diameters are 38 mm, which align with standard hose sizes for the listed vehicles. In most cases the existing hoses can be reused if they are in good condition and still measure correctly. Many owners choose to replace aged hoses at the same time to avoid future failures. A quick inspection of hose walls and clamps before refit is recommended.

Suitable for Holden Rodeo RA diesel 3.0L automatic transmission models from 2003 to 2008.

Suitable for Holden Colorado RC diesel 3.0L automatic transmission models from 2003 to 2008.

Suitable for Isuzu D-Max diesel 3.0L models noted as universal fit in the catalog name.

Confirm dimensions of 475 mm core height, 590 mm core width and 38 mm inlet and outlet diameters against existing setup before installation.

Professional installation is recommended to integrate the built-in transmission cooler correctly with the automatic transmission lines.