Common Rail Cowboys
HPD 4JJ1 Aluminium Rocker Cover
HPD 4JJ1 Aluminium Rocker Cover
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HPD 4JJ1 Aluminium Rocker Cover – Thai Import
✅ Aluminium Construction | ✅ Thermal Crack Resistant | ✅ Free Express Shipping Australia-Wide
Built tough for Aussie conditions, this HPD Special Parts 4JJ1 Rocker Cover is made from high-grade aluminium for improved durability and resistance to heat fatigue. Whether you're upgrading from plastic or chasing more reliability in high-performance builds, this rocker cover gets it done right.
🛠️ Suits:
- Isuzu DMAX 4JJ1 Euro 2 & Euro 3 (3-bolt front pattern) approximately 2007-2012
- Holden Rodeo 4JJ1 approximately 2007-2008
- Holden Colorado 4JJ1 approximately 2007-2010
Note: Not compatible with injector covers – these are shaved rocker covers for performance applications.
👉 Injector and Rocker Cover Fitting Kits Available Here
🔥 Why Upgrade?
- Aluminium Construction – Won’t crack like factory plastic covers
- Clean Performance Look – Built to match high-end engine bays
- Designed for Reliability – Handles heat and pressure with ease
🚫 What's Not Included:
Both available separately.
💳 Buy Now, Pay Later
Afterpay, Humm, Klarna and Zip available at checkout.
🚚 Free Express Shipping Australia-Wide
Dispatched fast from our Aussie warehouse – no BS, just quick shipping - (sometimes 2-4 week wait depending on stock availability.






