High Performance Diesel
HPD Front Mount Intercooler for Colorado & D-Max 4JJ1 3.0L 2008-2012
HPD Front Mount Intercooler for Colorado & D-Max 4JJ1 3.0L 2008-2012
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Isuzu 4JJ1 | 450 x 300 x 76 mm Bar and Plate Core | 63 mm Mandrel-Bent Piping | Bolt-On
Factory top mount intercoolers heat soak fast. The HPD front mount kit for the 4JJ1 Colorado RC and D-Max moves the core to the front of the vehicle where it gets real airflow, so you get cooler, denser intake air under load. Built for towing, touring and tuned builds.
Simple bolt-on fitment with minimal modification. Pair it with a quality ECU tune for gains HPD quotes at up to around 30% in power and torque.
What Is Included
- HPD front mount intercooler, 450 x 300 x 76 mm bar and plate core
- Mandrel-bent 63 mm alloy piping
- CNC-machined MAP sensor boss
- High-temp silicone joiners and clamps
- Stainless steel mounting brackets
Key Features
- Bar and plate core for maximum cooling
- Mandrel-bent 63 mm piping for smooth airflow
- CNC-machined MAP boss for accurate readings and tuning
- Stainless brackets for long-term durability
- Clears most aftermarket bull bars
- Cooler intake temps can improve fuel efficiency under load
- Turbo upgrade friendly: the intercooler setup does not need replacing when you upgrade the turbo later
- Up to around 30% more power and torque with supporting mods and appropriate tuning
Vehicle Fitment
- Holden Colorado RC, 3.0L 4JJ1, 2008 to 2012
- Isuzu D-Max, 3.0L 4JJ1, 2008 to 2012
Direct bolt-on fitment, minimal modifications required.
Not compatible with front-mounted winches.
Fitting Notes
- DIY-friendly bolt-on installation using the supplied brackets. A workshop install is still recommended for the best result.
- Fits behind most bull bars. Check clearances if your front end is heavily customised.
- A tune is not required but is strongly recommended to make the most of the upgrade.
Supporting Hardware
Going further with the 4JJ1? The 4JJ1/4JJ3 stainless exhaust manifold for F44/F55 turbos is the next step, and this intercooler setup carries over.
Shipping and Payment
Free express shipping Australia-wide with tracking. Typical lead time on these kits is 7 to 11 business days.
Afterpay, Humm, Klarna and Zip accepted at checkout. Returns and warranty are covered by our refund policy.
Frequently Asked Questions
Do I need a tune with this intercooler?
A tune is not required but is strongly recommended to maximise performance and spool.
Does it fit with bull bars?
Yes. The HPD kit is designed to clear most aftermarket bars. It is not compatible with front-mounted winches.
Is installation DIY friendly?
Yes. It is a bolt-in kit using the supplied brackets. A workshop install is still recommended for the best result.
Will this improve fuel economy?
Cooler intake temps improve combustion efficiency, which can help economy when towing or under heavy load. Results depend on how the vehicle is driven and tuned.
Front Mount Airflow. Tune-Ready. Bolt-On.
HPD front mount intercooler kit for the 2008 to 2012 4JJ1 Colorado RC and D-Max. Free express shipping Australia-wide.
Common Rail Cowboys is not affiliated with Isuzu Motors or GM Holden. High Performance Diesel (HPD) is a trademark of its owner and is used here to identify the product. Power, torque and efficiency figures are supplier figures that depend on tune, supporting mods, fuel and conditions. Treat them as targets, not promises. Installation should be carried out by a competent person. Confirm fitment for your vehicle before ordering; fitment is the buyer's responsibility. Modifications may affect vehicle warranty and compliance.
