Upgrade your breather system with the HPD Top Exit Crankcase Breather – built for performance and reliability. Designed to work with HPD 4JJ1 / 4JJ3 rocker covers, it’s perfect for high-performance catch can setups or custom routing applications.

👉 Need the matching push-in -10AN adapter? Click here.

• Holden Rodeo RA7 – 2007–2008
• Holden Colorado RC – 2008–2012
• Isuzu D-MAX – 2008–2019
• Isuzu D-MAX (4JJ3) – 2020 onwards*
• Isuzu MU-X (4JJ1) – 2013–2019
• Isuzu MU-X (4JJ3) – 2020 onwards*
• Mazda BT-50 – 4JJ3-TCX – 2020 onwards*

* Requires approx. 4x 8G / 4.2 × 16 mm self-tapping stainless screws

• Top-exit outlet — ideal for compact or upward catch can routing (not compatible with top mount intercoolers)
• Made by HPD Special Parts Thailand
• Designed to integrate with stock and HPD alloy rocker covers (4JJ1 / 4JJ3)

🛠️ 4JJ3 Owners: Suitable bolts required for install (not included).

• 💸 Afterpay, Humm, Klarna & Zip available
• ✈️ Free Express Shipping Australia-Wide
• ⚡ Fast, trackable delivery — typically dispatched same or next business day

Generally in stock — Some items may have a 1–3 week wait depending on demand. If urgent, please message us before placing your order 😊