2017-2024 L5P CCV Upgrade Kit - JZ Manufacturing

🛠️ L5P Duramax CCV Upgrade Kit – Billet Aluminum Oil Fill Neck + Extended Tube

Made in the USA | Billet Machined | Easier Oil Changes | Eliminates Factory CCV Box Failures

Upgrade your 2017–2024 L5P Duramax with this CCV (Crankcase Ventilation) Upgrade Kit, designed to eliminate the problematic factory plastic CCV box and relocate your oil fill neck for easier, cleaner service. This kit replaces the brittle black CCV box on the driver’s side of the engine bay with a durable billet aluminum unit, engineered for strength, reliability, and convenience.

Whether you're tired of leaking CCV systems or just want cleaner, simpler oil changes, this kit delivers real-world function and long-term durability.

✅ Key Features:

• 🇺🇸 Made in the USA – CNC-machined from premium billet aluminum

• 🧩 Extended Oil Fill Tube – Easier top-offs with large oil containers

• 🔒 Cam-Lock Oil Fill Cap – Secure, clean, and quick to use

• 🧼 Baffled CCV Block – Removes oil from crankcase vapors for cleaner operation

• 🔧 Direct Replacement – Eliminates the brittle factory CCV box known for cracking and leaking

• 📦 All Hardware Included – Straightforward bolt-on install

💡 Why This Matters:

The OEM plastic CCV box is prone to cracking, which leads to oil leaks across the engine bay. This kit removes that failure point and replaces it with a serviceable, leak-free design that improves airflow and simplifies maintenance. Great for performance builds, tuned trucks, and anyone tired of messy oil changes.

🔧 Installation Note:

You will need a screw/bolt extractor to remove the 4 factory screws holding the stock CCV block. We recommend this affordable extractor set from Harbor Freight (not included).