Isuzu D-MAX Intercooler 4JJ1 2008-2012

Description

Overview – Isuzu D-MAX Intercooler 4JJ1 2008–2012

The Isuzu D-MAX Intercooler 4JJ1 2008–2012 upgrade by High Performance Diesel (HPD) delivers cooler intake temps, stronger towing performance, and proven reliability. This top-mount kit is engineered for harsh Australian conditions. It drops intake air temperatures, improves throttle response, and protects your engine on road, track, and trail. Installation is straightforward, and the quality hardware ensures a secure, lasting fit.

Key Features – HPD Intercooler for Isuzu D-MAX 2008–2012

• Bigger, more efficient core: 450 x 300 x 76 mm for exceptional heat rejection.
• Up to ~50% more surface area: approx. 1350 cm² vs 910 cm² OEM for improved cooling.
• Higher charge-air volume: 10,260 cc vs 5,915 cc OEM for sustained power under load.
• CNC billet hardware: unique billet throttle-body clamp and CNC-machined MAP sensor boss for precise OEM fitment.
• Direct bolt-in design: clean installation with model-specific brackets, hoses, and fasteners.
• Built for Australia: robust bar-and-plate construction for reliability in heat, dust, and corrugations.
• Optional catch can: add HPD catch can to reduce intake contamination (additional cost).

Specifications – Isuzu D-MAX Intercooler 4JJ1 2008–2012

• Factory core size: 260 x 350 x 65 mm
• Factory surface area: ~910 cm²
• Factory volume: 5,915 cc
• HPD core size: 450 x 300 x 76 mm
• HPD surface area: ~1,350 cm²
• HPD volume: 10,260 cc
• Core type: bar-and-plate aluminium
• Mounting: top-mount; bolt-on with supplied brackets
• Engine: Isuzu 4JJ1
• Vehicle years: 2008–2012

What’s in the Box

• HPD upgraded top-mount intercooler assembly (with electric fan)
• CNC billet throttle-body clamp
• CNC-machined MAP sensor boss
• Vehicle-specific silicone hoses and clamps
• Mounting brackets and comprehensive fastener kit
• Wiring loom for fan and required fittings
• Installation guide

Compatibility

• Isuzu D-MAX 4JJ1 (2008–2012)

PDF Fitting Instructions

Download HPD’s official fitting resources here: HPD Manufacturer Support & Guides. If you need a direct PDF for this kit, contact our team and we’ll send the file right away.

Delivery & Lead Times

Most orders dispatch in 3–5 business days when in stock. Lead times can vary with demand. Need it fast? Reach out and we’ll confirm current availability and delivery options.

Professional Fitting Service on the Sunshine Coast

For a seamless result, book professional installation with Sunshine Coast Diesel Tuning. Our technicians fit HPD intercoolers daily, ensuring correct clearances, tidy wiring, and reliable performance. We torque-check all hardware, pressure-test the system, and road-verify temps, so you drive away confident.

Why Upgrade the Isuzu D-MAX Intercooler 4JJ1 2008–2012?

Lower charge-air temps mean denser air, cleaner combustion, and consistent output—especially when towing or climbing. This HPD system controls heat soak and sustains power where the factory core tapers off. The result is dependable cooling and smooth, repeatable performance.