Sinister Diesel Billet Catch Can Kit – 6.7L Cummins
Fits 2019–2023 Ram 2500 / 3500
Key Features
• Fully machined from billet aluminum for maximum strength and durability
• High-flow design allows proper crankcase ventilation while filtering oil, fuel, and water vapor
• Fully baffled internals for superior oil separation and cleaner airflow
• Serviceable can for easy inspection—see exactly how much oil is being collected
• Can be opened while installed for quick draining or cleaning
• Frame rail-mounted for a clean, secure fit
• Designed for simple installation with all hardware included
Product Overview
The Sinister Diesel Billet Catch Can Kit is the perfect upgrade to protect your 6.7L Cummins from oil blow-by and intake contamination. Designed to capture oil mist, vapor, and other contaminants before they re-enter your intake system, this kit helps maintain optimal airflow and combustion efficiency while keeping your turbo and intercooler clean.
Oil residue inside the intake or intercooler can reduce thermal transfer and cause the turbo’s compressor wheel to become unbalanced, shortening its lifespan. The Sinister Diesel Catch Can prevents these issues by separating oil and contaminants from the crankcase gases before they circulate through your engine. The result is better reliability, smoother performance, and longer-lasting components.
Built from CNC-machined billet aluminum, this catch can features fully baffled internals and a high-flow design that keeps crankcase pressure under control while efficiently capturing contaminants. The can is easy to inspect and drain without removal, and it mounts neatly to the frame rail using the supplied hardware.
What’s Included
• (1) Billet Aluminum Catch Can
• Complete Installation Hardware Kit
Frequently Asked Questions (FAQs)
Q: Can I use this kit with an aftermarket bumper?
A: Yes. Depending on your bumper setup, the catch can may need to be relocated slightly. The included hardware provides flexible mounting options to fit your configuration.
Q: Does this system replace or remove the factory CCV system?
A: No. The Sinister Diesel Catch Can works in line with your existing CCV system, capturing oil and fuel vapor before it can re-enter the intake.
Q: How often should I drain the catch can?
A: We recommend checking and draining every 3,000–5,000 miles, or more often if you tow or drive in extreme conditions.
Q: Do I need modifications for this kit?
A: No. This kit is completely bolt-on and installs easily with basic hand tools—some drilling may be required depending on the year and options.
Q: What is the catch can made from?
A: It’s CNC-machined from solid billet aluminum for long-lasting durability and corrosion resistance.
Q: Will this affect emissions or drivability?
A: No. The catch can operates as part of the crankcase ventilation system and does not interfere with emissions components or engine tuning.
