Replacement Part Number: CV50617 CV50634 3685528 4312013 3691687 2225679 Strict Production Process: Strict production process, high-quality materials, fine workmanship, good sealing performance. Application: The crankcase breather filter is designed to be installed on the engine's crankcase to prevent harmful gases and oil vapors from entering the vehicle's interior. Easy to Install: Direct replacement for the old or damaged one. Easy installation and precise fit. Premium Material: High quality rubber, more resistant to high temperature and high pressure, with strong oil resistance and long service life. crankcase vent filter element prevents oil mist accumulation, reducing slipping and fire hazards, and mitigating respiratory issues and eye irritation for personnel in the vicinity.By using high-efficiency filters, the crankcase vent filter element helps maintain clean turbochargers, aftercoolers, and internal components, leading to improved engine performance