• Market Size & Growth: The global automotive crankcase ventilation system market was valued at approximately USD 1.74 billion in 2024 and is projected to reach USD 2.33 billion by 2032, growing at a CAGR of 3.7% during the forecast period from 2025 to 2032.

• Regional Insights: North America held a significant market share in 2024, driven by stringent emission regulations and high vehicle production rates. The Asia-Pacific region is expected to witness the highest growth rate due to increasing vehicle manufacturing and adoption of emission control technologies.

• Technological Trends: Advancements in crankcase ventilation systems include the development of closed crankcase ventilation (CCV) systems, which effectively manage blow-by gases, and the integration of AI and IoT for predictive maintenance and real-time diagnostics.

• Market Drivers: Key factors driving market growth include stringent emission regulations, the need for improved engine efficiency, and the increasing adoption of advanced filtration technologies in automotive manufacturing.

• Market Challenges: The rise of electric vehicles (EVs), which do not require traditional crankcase ventilation systems, poses a challenge to market growth. Additionally, supply chain disruptions and rising raw material costs can impact profitability.

• Key Players: Major companies in the market include Mahle GmbH, Mann+Hummel, Kuss Filtration, A.L. Group, and Freudenberg, known for their innovation, advanced production capabilities, and sustainability-focused strategies.

In this report, the Automotive Crankcase Ventilation System Market has been segmented by Technology Type, Sales Channel, Vehicle Type, and Geography.

Automotive Crankcase Ventilation System Market, Segmentation by Technology Type

The Technology Type segmentation distinguishes how crankcase gases are handled and the level of emissions control that OEMs and fleets can achieve. Adoption is shaped by emissions regulations, engine downsizing trends, and total cost of ownership considerations across vehicle platforms. Suppliers differentiate via filtration efficiency, oil mist separation performance, and integration with engine management, with platform modularity and packaging flexibility influencing sourcing and platform carryover strategies.

Open Crankcase Ventilation (OCV)

OCV routes blow-by gases to the atmosphere after rudimentary separation, offering a simpler architecture for legacy engines and cost-sensitive applications. While attractive for low initial cost and straightforward serviceability, OCV faces mounting pressure where stringent emissions norms and worksite air-quality mandates apply. Vendors focusing on OCV emphasize ruggedization, ice-resistant designs, and drop-in retrofit kits for aging fleets, but long-term demand is expected to pivot toward more closed solutions as compliance requirements tighten.

Closed Crankcase Ventilation (CCV) / Positive Crankcase Ventilation (PCV)

CCV/PCV systems recirculate treated blow-by back into the intake, reducing particulate emissions and oil loss while improving under-hood cleanliness. These systems are increasingly standard with modern turbocharged and aftertreatment-equipped engines, where high separation efficiency and low pressure drop support durability and fuel economy goals. Suppliers compete on coalescer media design, service intervals, and diagnostics readiness, enabling OEMs to meet evolving standards and deliver consistent performance across global platforms.

Automotive Crankcase Ventilation System Market, Segmentation by Sales Channel

The Sales Channel view captures how components reach end users through factory fitment versus service replacement and upgrades. OEM programs prioritize lifecycle cost, warranty alignment, and platform commonality, while the aftermarket focuses on fleet uptime, maintenance intervals, and retrofit compatibility. Across both channels, partnerships with engine makers, tier-1 suppliers, and distributor networks shape regional availability, catalog depth, and training for installation best practices.

Original Equipment Manufacturer (OEM)

OEM demand is driven by multi-year platform sourcing, validation testing, and integration with engine control strategies. Awarded programs often favor suppliers offering scalable modules, global manufacturing footprints, and advanced separation media validated across varied duty cycles. Long contracts support cost learning curves and continuous improvement, with joint engineering roadmaps targeting emissions compliance, NVH performance, and packaging efficiency from concept through series production.

Aftermarket

The aftermarket serves replacement, preventive maintenance, and retrofit needs for mixed-age fleets. Distributors and service centers value SKU coverage, easy-fit kits, and extended service intervals that minimize downtime. Growth is supported by aging parc in emerging markets and fleets seeking OCV-to-CCV upgrades to improve site air quality and oil control. Clear documentation, technician training, and warranty support are differentiators influencing brand preference and repeat purchases.

Automotive Crankcase Ventilation System Market, Segmentation by Vehicle Type

Segmentation by Vehicle Type reflects distinct duty cycles, engine architectures, and regulatory contexts across passenger and commercial segments. System designers balance filtration performance with pressure management, thermal robustness, and serviceability. As OEMs adopt boosted gasoline and clean-diesel technologies, CCV/PCV solutions must maintain efficiency over long intervals while preserving engine reliability across varied climates and load profiles.

Passenger Vehicles

In passenger cars and SUVs, packaging constraints and NVH targets drive compact, integrated CCV/PCV modules. With the spread of turbocharging and GDI, high-efficiency oil separation is critical to reduce intake deposits and maintain emissions performance. Suppliers emphasize low pressure drop, freeze-resistant valves, and lightweight housings, coordinated with OEM calibration teams to ensure stable idle quality and controlled crankcase pressure across transient conditions.

Light Commercial Vehicles

LCVs require robust systems that balance payload-driven duty cycles with urban delivery patterns and frequent stop-start operation. Fleet operators prioritize reliability, ease of service, and predictable maintenance intervals. Upgrades from OCV to CCV solutions can enhance depot air quality and reduce oil misting, while OE programs adopt modular designs enabling cross-model standardization and simplified inventory for regional assembly plants and service networks.

Heavy Commercial Vehicles

HCV applications operate under sustained high loads and long service intervals, demanding high-capacity separators and durable valves that maintain efficiency over extended mileage. Compliance with heavy-duty emissions standards and alignment with aftertreatment systems make CCV the prevalent choice. Suppliers focus on field-proven coalescer media, condition monitoring options, and service-friendly cartridges to reduce downtime and support total cost of ownership objectives for haulage and vocational fleets.

Automotive Crankcase Ventilation System Market, Segmentation by Geography

In this report, the Automotive Crankcase Ventilation System Market has been segmented by Geography into five regions: North America, Europe, Asia Pacific, Middle East and Africa and Latin America.

North America

Demand reflects stringent EPA/CARB regulations, widespread use of turbocharged gasoline and clean-diesel powertrains in pickups and vocational trucks, and a mature service ecosystem. OEM platforms emphasize high-efficiency CCV modules with robust cold-start behavior, while fleets in construction and logistics seek extended service intervals and retrofit kits that improve shop air quality. Partnerships between engine makers and tier-1 suppliers support consistent performance across diverse duty cycles and climates.

Europe

Europe’s focus on Euro emissions standards, light-weighting, and CO₂ reduction underpins the prevalence of CCV/PCV systems with advanced separation media. Passenger car OEMs prioritize compact packaging and low pressure-drop designs to support small, boosted engines. In commercial vehicles, long-haul applications value durability and predictable maintenance, with suppliers collaborating on platform modularity and recyclability to align with circularity goals and evolving regulatory frameworks.

Asia Pacific

APAC combines high vehicle production with rapidly tightening emissions policies in major markets, accelerating adoption of closed systems. Localized manufacturing and cost-optimized designs are vital for competitiveness, while technology transfer with global suppliers raises filtration efficiency and validation standards. Growth in LCVs and regional freight supports demand for serviceable cartridges and training programs that ensure correct installation and sustained system performance across varied road and climate conditions.

Middle East & Africa

MEA demand centers on heavy-duty and vocational fleets operating in dusty, high-temperature environments where robust separator capacity and thermal resilience are crucial. While regulatory intensity varies, large infrastructure and energy projects sustain HCV volumes, with fleets valuing downtime reduction and simplified maintenance. Partnerships with regional distributors and workshops are important to ensure parts availability, correct fitment, and training tailored to harsh operating conditions.

Latin America

In Latin America, macroeconomic cycles influence vehicle output and replacement demand, but ongoing modernization supports gradual shifts from OCV to CCV in both OEM and aftermarket channels. Import substitution policies and local assembly encourage supplier investment in adaptable product lines and technical support. Fleets prioritize cost-effective upgrades, reliable parts supply, and service practices that sustain engine cleanliness and emissions compliance over extended operating intervals.

This report provides an in depth analysis of various factors that impact the dynamics of Automotive Crankcase Ventilation System Market. These factors include; Market Drivers, Restraints and Opportunities.

Drivers:

• Rising demand for lightweight and compact systems
• Focus on Engine Efficiency and Durability

• Focus on emission control - In the Global Automotive Crankcase Ventilation System Market, a significant driver is the focus on emission control within the automotive industry. As regulatory agencies worldwide continue to tighten emissions standards to combat air pollution and reduce the environmental impact of vehicles, automotive manufacturers are under increasing pressure to develop technologies that minimize harmful emissions, including those originating from the crankcase.

  Crankcase ventilation systems play a vital role in controlling emissions from internal combustion engines by managing crankcase pressure and evacuating harmful gases and particulate matter. These systems help prevent the buildup of pressure inside the crankcase, which can lead to oil leaks, engine seal damage, and increased emissions of pollutants such as hydrocarbons (HC), carbon monoxide (CO), and volatile organic compounds (VOCs).

  By focusing on emission control, automotive manufacturers and component suppliers are driving innovation in crankcase ventilation system design and technology. Advanced ventilation systems incorporate features such as oil separators, cyclonic separators, and positive crankcase ventilation (PCV) valves to effectively capture and separate oil droplets and contaminants from the crankcase gases before they are expelled into the atmosphere. Automotive manufacturers must ensure that their vehicles meet or exceed these stringent emissions standards to obtain regulatory approval and maintain market competitiveness.

Restraints:

• Complexity of Engine Design
• Cost Considerations

• Engine Performance and Efficiency Demands - Growing demand for automotive crankcase ventilation systems that contribute to engine performance and efficiency. These systems play a crucial role in maintaining proper crankcase pressure, controlling emissions, and preventing oil contamination, all of which are essential for optimizing engine operation. By ensuring efficient crankcase ventilation, manufacturers can help automakers meet increasingly stringent fuel economy targets, reduce greenhouse gas emissions, and enhance overall engine performance. Advancements in ventilation system technology, such as oil separators, cyclonic separators, and PCV valves, offer opportunities for innovation and differentiation, allowing manufacturers to develop solutions that improve engine efficiency while complying with regulatory standards.

  As automakers strive to improve fuel economy and reduce emissions, they may impose strict requirements and specifications on ventilation system performance, reliability, and durability. Meeting these demands often requires significant investments in research and development, testing, and validation to ensure that ventilation systems can withstand harsh operating conditions, provide consistent performance, and meet regulatory requirements.

  As engine designs evolve to meet performance and efficiency goals, there is a risk of increased engine stress and operating temperatures, which can impact the performance and reliability of crankcase ventilation systems. Manufacturers must carefully balance the need for efficient crankcase ventilation with the requirements for durability, longevity, and thermal management to ensure that ventilation systems can withstand the demands of modern engine designs. Failure to address these challenges effectively may result in reduced system performance, increased emissions, and potential warranty issues for automakers and end-users.

Opportunities:

• Growing Demand for Engine Efficiency
• Globalization of Automotive Supply Chains

• Shift towards Electric and Hybrid Vehicles - As the automotive landscape evolves and the demand for cleaner and more fuel-efficient vehicles continues to rise, electric and hybrid powertrains are becoming increasingly popular choices among consumers and automotive manufacturers alike.

  Despite the growing adoption of electric and hybrid vehicles, internal combustion engine (ICE) vehicles, including hybrid variants, continue to rely on crankcase ventilation systems to ensure proper engine lubrication, control emissions, and maintain overall engine performance. EVs do not have traditional crankcase ventilation systems, hybrid vehicles with internal combustion engines still require effective ventilation to manage crankcase pressures and emissions.

  Manufacturers of crankcase ventilation systems have the opportunity to develop specialized solutions tailored to the unique requirements of hybrid powertrains. These solutions may include advanced ventilation systems designed to integrate seamlessly with hybrid drivetrains, accommodate additional components such as electric motors and battery packs, and optimize performance under varying operating conditions.

  The rise of hybrid vehicles presents opportunities for manufacturers to innovate and differentiate their products. Advanced features such as variable valve timing, active crankcase ventilation, and electronic control modules can enhance system efficiency, adaptability, and performance in hybrid applications. Manufacturers that invest in research and development to develop cutting-edge ventilation solutions specifically for hybrid vehicles can gain a competitive edge in the market and address the evolving needs of automotive OEMs and consumers.

  As hybrid vehicles become more prevalent in the automotive market, there is a growing aftermarket demand for high-quality ventilation components and retrofit solutions. Manufacturers can capitalize on this market opportunity by supplying replacement ventilation systems, retrofit kits, and performance upgrades designed specifically for hybrid vehicles. By offering innovative and reliable ventilation solutions for both OEM and aftermarket applications, manufacturers can position themselves as key players in the rapidly expanding hybrid vehicle segment.

Automotive Crankcase Ventilation System Market is marked by increasing competitiveness, with around 61% of the share managed by leading OEMs and component suppliers. Companies focus on strategies involving collaboration and supplier partnerships to strengthen integration. Targeted merger initiatives and continuous innovation in emission control systems are enabling steady growth across passenger and commercial vehicle segments.

Market Structure and Concentration
Nearly 57% of market concentration resides with multinational manufacturers, while smaller firms contribute through specialized products. Strategic merger and acquisition efforts have reinforced consolidation, enhancing R&D and distribution power. Strong strategies from key players focus on standardization and quality improvements, helping sustain growth and driving expansion into aftermarket services.

Brand and Channel Strategies
About 55% of distribution relies on established OEM networks and aftermarket suppliers, supported by long-term partnerships. Leading firms deploy strategies to enhance visibility through co-branding and supplier collaboration. Customized marketing and service-based innovation are strengthening brand presence, ensuring stable growth and customer loyalty in regional and international markets.

Innovation Drivers and Technological Advancements
More than 59% of investment is directed toward technological advancements in filtration efficiency, lightweight materials, and emission compliance. Companies emphasize innovation through R&D collaboration with automotive institutes and universities. Strategic partnerships and selected merger activities are reinforcing competitive positioning, resulting in consistent growth and adoption of advanced ventilation technologies.

Regional Momentum and Expansion
Around 56% of demand comes from North America and Europe, where emission standards and advanced infrastructure drive adoption. Asia-Pacific reflects strong expansion due to rising vehicle production and supplier partnerships. Regional strategies emphasize localized manufacturing and targeted collaboration, supported by government-backed innovation initiatives, securing long-term growth.

Future Outlook
The future outlook indicates that close to 58% of upcoming growth will be driven by sustainability-focused designs and digital monitoring integration. Companies will pursue strategies emphasizing innovation, regional expansion, and strategic partnerships. With continuous technological advancements and increased R&D collaboration, the market is well-positioned for enduring development and competitive strengthening.

Key players in Automotive Crankcase Ventilation System Market include:

• MAHLE GmbH
• MANN+HUMMEL
• Alfdex AB
• Metal Textiles
• Parker Hannifin Corp.
• Continental AG
• Cummins Filtrations
• Seaboard Marine
• Sogefi Group
• Hengst SE
• Donaldson Company, Inc.
• Aisin Industry Co., Ltd.
• Robert Bosch GmbH
• ElringKlinger AG
• Tenneco Inc.

In this report, the profile of each market player provides following information:

• Market Share Analysis
• Company Overview and Product Portfolio
• Key Developments
• Financial Overview
• Strategies
• Company SWOT Analysis