Crankcase Breather Filter for Cummins ISX & ISM Engines | Replaces CV50633 & CV50634
Contact UsThe CV50633 crankcase breather filter is a high-quality replacement designed for Cummins ISX and ISM diesel engines. Engineered to maintain proper crankcase ventilation, it efficiently separates oil mist and contaminants from blow-by gases, helping protect engine components and improve long-term reliability. Suitable for heavy-duty truck applications, this filter offers OEM-level fit, performance, and durability.
Description
Heavy-Duty Crankcase Breather Filter for Cummins Diesel Engines
Modern diesel engines generate crankcase gases during combustion. Without effective filtration, these gases can carry oil vapors and contaminants that may negatively affect engine performance and component life.
This crankcase breather element is designed to support proper ventilation by removing oil aerosols and impurities before they are recirculated through the engine system. By maintaining balanced crankcase pressure, it helps reduce oil consumption, protect turbochargers, and support cleaner engine operation.
Manufactured using high-efficiency filtration media, the filter delivers reliable performance under demanding operating conditions commonly found in long-haul transportation, construction fleets, logistics vehicles, and vocational trucks.
Product Features
- OEM-standard replacement quality
- Efficient oil mist separation technology
- Helps maintain proper crankcase pressure
- Protects turbochargers and engine seals
- High dirt-holding capacity
- Durable construction for heavy-duty service
- Direct-fit installation
- Suitable for fleet maintenance programs
- OEM and private label manufacturing available
Product Specifications
| Item | Specification |
|---|---|
| Product Name | Crankcase Breather Filter |
| OEM Number | CV50633 |
| Alternate Number | CV50634 |
| Filter Type | Crankcase Ventilation Filter |
| Application | Heavy-Duty Diesel Engines |
| Filtration Media | Synthetic Multi-Layer Media |
| Installation | Direct Replacement |
| Origin | China |
| Service | OEM / ODM Available |
Cross Reference
This breather filter replaces:
- CV50633
- CV50634
- 3691476
- 904-7904
- 99340
- CB57
Compatible Engines
Suitable for selected applications equipped with:
- Cummins ISX
- Cummins ISX15
- Cummins ISM
- Cummins X15 (selected configurations)
Compatible Truck Applications
Commonly found in heavy-duty trucks such as:
- Kenworth T680
- Kenworth W900
- Freightliner Cascadia
- Freightliner Coronado
- Peterbilt 389
- Peterbilt 579
- International Trucks
- Western Star Trucks
Vehicle compatibility may vary by engine and production year. OEM number verification is recommended before ordering.
Why Choose This Breather Filter?
Improved Engine Protection
Efficient filtration helps reduce contamination within the crankcase ventilation system and protects critical engine components.
Reliable Performance
Built to withstand demanding commercial operating environments while maintaining stable airflow characteristics.
Lower Maintenance Costs
Proper ventilation helps extend engine component life and supports preventive maintenance programs.
Ideal for Wholesale Buyers
Suitable for truck parts distributors, fleet operators, repair shops, and aftermarket suppliers seeking consistent quality and stable supply.
Quality Control
Every filter undergoes strict testing procedures, including:
- Filtration efficiency testing
- Airflow performance testing
- Structural durability inspection
- Sealing performance verification
- Dimensional accuracy control
Our factory supports bulk purchasing, OEM production, private labeling, and customized packaging solutions.
Frequently Asked Questions
What is the purpose of a crankcase breather filter?
It removes oil mist and contaminants from crankcase gases, helping maintain proper ventilation and reduce engine wear.
Which engines use this filter?
It is commonly used in Cummins ISX, ISX15, and ISM engine platforms found in heavy-duty trucks.
Is it a direct replacement part?
Yes. The filter is manufactured according to OEM specifications for direct installation.
Can you provide OEM branding?
Yes. We offer OEM manufacturing, customized packaging, and private label services for distributors and wholesalers.
