HPD Special Parts
HPD Crankcase Breather Adapter - 4JJ1 - 4JJ3 - -10AN Push In Adapter
HPD Crankcase Breather Adapter - 4JJ1 - 4JJ3 - -10AN Push In Adapter
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HPD Crankcase Breather Adapter – 4JJ1 / 4JJ3 (-10AN Push-In)
Upgrade your crankcase ventilation setup with the HPD -10AN Push-In Breather Adapter, designed to convert the factory 4J breather outlet to a high-flow AN fitting. Perfect for catch cans and custom breather routing.
🔧 Suits the Following 4J Models
- Holden Rodeo RA7 – 2007–2008
- Holden Colorado RC – 2008–2012
- Isuzu D-MAX 4JJ1 – 2008–2020
- Isuzu D-MAX 4JJ3 – 2020+
- Isuzu MU-X 4JJ1 – 2013–2020
- Isuzu MU-X 4JJ3 – 2020+
- Mazda BT-50 4JJ3-TCX – 2020+
Not compatible with plastic rocker covers that use a molded barb.
💪 Why Upgrade to a -10AN Adapter?
- High-flow vapor path for big-power 4J builds
- Clean push-in install — no tapping or welding
- Perfect for custom catch can setups
- HPD quality — reliable, tight sealing
📦 What's Included
- 1 × HPD -10AN Push-In Adapter
🛠️ Installation Notes
- Adapts OEM breather port to -10AN hoses
- Check clearance with top-mount intercoolers
- Use quality AN fittings for best seal
- Apply RTV lightly around fitting and allow to cure before running engine
💳 Payment & Shipping Options
- 💸 Buy Now, Pay Later: Afterpay, Humm, Klarna & Zip available
- ✈️ Free Express Shipping Australia-Wide
- 📦 Fast dispatch from Australian warehouse
❓ FAQs
Q: Will this fit my 4JJ1 or 4JJ3 engine?
A: Yes — suits most 4JJ1 and 4JJ3 engines across D-MAX, MU-X, Colorado, Rodeo, and BT-50 platforms.
Q: What size AN fitting does this use?
A: -10AN (10 dash AN fitting) — the standard size for performance catch can setups.
Q: Will this work with my plastic rocker cover?
A: Not compatible with plastic rocker covers that use a molded barb. This adapter is designed for metal rocker covers with the factory breather port.
Q: Do I need RTV sealant?
A: Yes — apply RTV lightly around the fitting and allow to cure before running the engine for proper sealing.
Q: Is this better than the factory outlet?
A: Yes — provides high-flow vapor path ideal for big-power builds and professional catch can setups with -10AN braided hoses.
🔧 Upgrade Your Breather Setup
HPD -10AN push-in adapter. High-flow for catch cans. No tapping or welding required.
