Description
Product Overview
The ZELYVER CV50633 crankcase filter is engineered for inside‑engine placement, delivering superior protection against blow‑by gases that can degrade oil quality and engine components. Constructed from high‑density filtration media, the filter captures fine particles while allowing optimal airflow. Weighing just 2.01 pounds and measuring 11.69 x 9.57 x 3.03 inches, it fits seamlessly into the designated breather housing of Cummins ISX, Volvo, Western Star, Peterbilt, Kenworth, and other compatible models. Each unit undergoes rigorous factory testing to meet OEM specifications, ensuring reliability and longevity.
Usage
Designed for heavy‑duty trucks operating in demanding environments, this filter excels in long‑haul, construction, and off‑road applications where engine durability is critical. Install the CV50633 directly into the crankcase breather port to prevent contaminants from entering the oil system. Ideal for fleet managers and independent operators seeking to reduce maintenance costs and downtime. 
Why Choose Us
ZELYVER combines decades of automotive expertise with precision manufacturing. Our filters are 100% tested before leaving the factory, guaranteeing they meet or exceed original equipment standards. Backed by a one‑year warranty and supported by a responsive customer service team, we provide confidence that your engine is protected by a product you can trust.
Key Features
- High‑density filtration media captures fine blow‑by particles
- Exact OEM fit for Cummins ISX and major truck brands
- Lightweight design reduces overall engine load
- Factory‑tested to meet OEM performance standards
- One‑year warranty with dedicated support
FAQ
Is the CV50633 compatible with my 2011 Volvo truck?
Yes, the CV50633 is listed as a direct replacement for Volvo models from 2008‑2013, including the 2011 year.
How often should I replace the crankcase filter?
We recommend replacement every 30,000 miles or 12 months, whichever comes first, to maintain optimal engine protection.
Can I install the filter myself?
Installation is straightforward with basic hand tools. Follow the included instructions or consult a qualified mechanic.
What does the one‑year warranty cover?
The warranty covers any manufacturing defects and guarantees the filter will perform to OEM specifications.
Does this filter affect engine performance?
No, the filter is designed to maintain proper airflow while removing contaminants, ensuring no loss of power or efficiency.




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