High Performance Diesel
Isuzu D-Max / MUX Intercooler Kit - 2012-2016
Isuzu D-Max / MUX Intercooler Kit - 2012-2016
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4JJ1 | Bar and Plate 600 x 300 x 76 mm Core | Bolt-On Front Mount | Australian Engineered
Factory 4JJ1 intercooler not keeping up? Towing, hot days and a tune all push intake temps up and the stock cooler runs out of puff. The HPD front mount kit for the 2012 to 2016 D-Max and MU-X drops intake temps, improves airflow and keeps EGTs in check.
Direct bolt-on replacement for the factory intercooler. HPD quotes up to 30% more power and torque with an ECU tune and supporting mods. Tuning is not required to fit it, but it is where the gains come from.
What Is Included
- HPD bar and plate front mount intercooler, 600 x 300 x 76 mm core
- Mandrel-bent alloy piping
- Silicone hoses and clamps
- Laser-cut mounting brackets
- Fitting guide
Factory fasteners are reused where appropriate.
Key Features
- Bar and plate core for heat transfer and durability
- Mandrel-bent alloy piping for throttle response
- Silicone hoses and clamps rated for high boost
- Hot side piping 51 mm
- Cold side piping 57 mm stepping to 63 mm at the intake
- Australian engineered for harsh conditions
- Up to 30% more power and torque with supporting mods and appropriate tuning
Vehicle Fitment
- Isuzu D-Max 4JJ1, 2012 to 2016
- Isuzu MU-X 4JJ1, 2012 to 2016
Direct bolt-on replacement for the factory intercooler on the listed models.
Fitting Notes
- Bolts into factory locations. No cutting required on the listed models.
- Recheck clamp torque after the first heat cycle.
- Tuning is not required, but it is recommended for maximum gains.
- Most common bull bars and winches clear. Custom setups may need minor bracket tweaks. Contact us if unsure.
Supporting Hardware
Building the 4JJ1 further? Pair the intercooler with the 4JJ1/4JJ3 stainless exhaust manifold for F44/F55 turbos.
Shipping and Payment
Free express shipping Australia-wide with tracking. These kits are generally dispatched within 7 to 14 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 for this intercooler?
A tune is not mandatory, but pairing the intercooler with an ECU remap delivers the best gains and keeps EGTs under control under load.
Will it fit with my bull bar and winch?
It is designed as a bolt-in for factory locations. Most common bars and winches clear, but custom setups may require minor bracket tweaks. Contact us if unsure.
What power can I expect?
With quality tuning and supporting mods, HPD quotes improvements of up to around 30% over the stock intercooler setup, with far better consistency on hot days.
Is everything included to install?
Yes: intercooler, piping, silicone hoses, clamps and brackets. You reuse factory fasteners where appropriate and follow the included fitting guide.
Cooler Charge. Safer EGTs. Bolt It On.
HPD front mount intercooler kit for the 2012 to 2016 4JJ1 D-Max and MU-X. Free express shipping.
Common Rail Cowboys is not affiliated with Isuzu Motors. High Performance Diesel (HPD) is a trademark of its owner and is used here to identify the product. Power and torque 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.
