HPD 4JJ1 Boost Gauge Adapter

✅ DIY Friendly | ✅ Billet Aluminium | ✅ Free Express Shipping

Monitor your boost the right way with the HPD Boost Gauge Adapter – precision-made for Isuzu 4JJ1 engines by HPD Special Parts Thailand.

Forget drilling, welding, or dodgy T-piece installs. This billet adapter gives you a clean, factory-style solution to run your boost gauge, whether you’re tracking stock boost or tuning for serious power.

💪 Key Features

• Billet anodised aluminium – available in multiple HPD colours
• Leak-free install – includes stainless bolts & new O-ring
• Direct fit design – no cutting or mods required
• Perfect match for HPD boost gauge setups

🔧 Vehicle Compatibility

• Holden Rodeo RA7 – 4JJ1
• Holden Colorado RC – 4JJ1
• Isuzu D-MAX – 2006–2016 (4JJ1)
• Isuzu MU-X – 2012–2015 (4JJ1)

🛠 Install Notes

Direct bolt-in upgrade – no tuning or extra parts needed. Ideal for anyone fitting a boost gauge and wanting it done properly the first time.

💳 Flexible Payment Options

Afterpay, Humm, Klarna & Zip available at checkout.

🚚 Free Express Shipping Australia-Wide

Fast dispatch with tracking from our Aussie warehouse.

Please Note:

Some colour options may sell out quickly. If unavailable, we’ll contact you with alternatives or order it in specially for you 🤙