How to Install SPELAB Valve Covers and Oil Catch Can 6.7L Cummins

TL;DR

Installing a SPELAB 6.7 Cummins valve cover and Oil Catch Can on a 2009 Dodge Ram 3500 improves engine ventilation, reduces oil vapor buildup, and enhances aesthetics. Steps: safely remove the OEM valve cover, clean and inspect, install SPELAB valve cover and optional CCV reroute kit, mount the Oil Catch Can, and test for leaks. Regular maintenance of the catch can, gaskets, and connections ensures long-lasting performance.

Upgrading your 2009 Dodge Ram 3500 with a 6.7L Cummins engine using SPELAB valve covers and an Oil Catch Can is a popular modification among enthusiasts. It enhances engine appearance, optimizes ventilation, and reduces oil vapor entering the intake. With careful steps, even DIY users can achieve professional results while minimizing risk of leaks or engine contamination.

Required Tools

• Electric screwdriver or ratchet set
• Torque wrench
• Gasket scraper
• Clean cloths
• Optional: degreaser and sanding paper if valve cover cleaning is needed

Step 1: Preparation

Park the truck on a level surface and ensure the engine is fully cooled. Open the hood and locate the existing stock valve cover. Have all tools ready and clear the workspace. This is critical in hot and humid environments to avoid burns or mistakes.

Step 2: Remove the OEM Valve Cover

Carefully remove all screws holding the stock valve cover, keeping them organized. Lift the OEM valve cover gently and immediately replace the valve cover caps to prevent debris or moisture from entering the engine.

Step 3: Remove CCV Filter and Valve Cover Base

After removing the OEM cover:

1. Remove the CCV filter and valve cover base carefully.
2. Avoid damaging surrounding components and hoses.
3. Ensure all connections are fully detached and safe for later reinstallation.

Step 4: Install the SPELAB Valve Cover

Place the SPELAB 6.7 Cummins billet valve cover on the engine, aligning screw holes carefully. Misalignment can cause oil leaks or reduced performance.

Step 5: Install CCV Reroute Kit and Breather Cap

Install the optional CCV reroute kit and breather cap to reduce crankcase pressure and optimize airflow:

1. Attach the breather cap to the vent hole on the valve cover, ensuring a tight seal.
2. Connect the hose from the breather cap to the exhaust port, securing all clamps to avoid leaks.

Step 6: Secure the Bonnet

Insert the supplied stainless steel screws and tighten evenly using a torque wrench. Double-check that the bonnet is seated properly to ensure no gaps or leaks.

Step 7: Install the Oil Catch Can

1. Select a secure mounting location accessible for inspection.
2. Attach brackets and clamps, ensuring stability.
3. Connect hoses from the CCV outlet to the Oil Catch Can inlet, and then from the outlet back to the engine intake.
4. Check all connections for air-tightness.
5. Note: Some areas may be hard to reach; patience and a flexible screwdriver may help.

Step 8: Final Inspection and Testing

Start the engine, let it idle, and inspect for leaks or unusual noises. Verify the Oil Catch Can captures oil mist and all hoses are secure. If everything is smooth, the installation is successful.

Maintenance and Care

1. Oil Catch Can

Inspect every 3,000–5,000 miles, especially in humid or heavy-use conditions. Clean with warm water and mild detergent; brush gently to remove residue. Ensure all hoses remain tightly connected.

2. Valve Cover Gaskets

Inspect at every oil change. Replace if signs of cracking, hardening, or deterioration appear. Ensure proper seating and avoid over-tightening screws.

3. Piping and Cylinder Head Connections

Regularly check hoses and connections to prevent leaks and maintain airflow efficiency.

4. Driving Habits

Avoid long periods under heavy load and perform regular oil changes to reduce buildup and maintain optimal performance.

5. Air Filter

Inspect every 6,000–10,000 miles. Replace as needed to prevent contaminants from entering the engine.

Benefits of Installing SPELAB Valve Covers and Oil Catch Can

• Reduced oil vapor reflux: Captures oil mist to prevent intake contamination.
• Optimized engine ventilation: Relieves crankcase pressure for smoother airflow.
• Enhanced engine life: Reduces wear and deposit formation.
• Improved aesthetics: Adds professional and clean engine bay appearance.

FAQ

Q1: Will installing SPELAB bonnets improve engine performance?

A1: Yes, they optimize airflow and sealing, helping engines run efficiently under high loads.

Q2: How often should the Oil Catch Can be cleaned?

A2: Every 3,000–5,000 miles, particularly in humid or heavy-use conditions.

Q3: What are the benefits of breather covers in high-humidity environments?

A3: They prevent moisture from entering the engine, reducing rust and maintaining smooth airflow.

Q4: Will these modifications affect the engine's cooling system?

A4: No, they primarily improve air intake cleanliness and ventilation without impacting cooling.

Q5: Are SPELAB accessories compatible with other aftermarket parts?

A5: Yes, they are designed to fit most aftermarket upgrades, providing flexible installation options.

John Lee

Mechanical Engineer | 10+ Years Experience

John has spent the last decade engineering and testing high-performance automotive components. Specializing in drivetrain durability and thermal management across Powerstroke, Cummins, and Duramax applications, he bridges the gap between OEM limitations and aftermarket performance. His philosophy: "Factory parts are just a starting point."